Terms and conditions

General terms and conditions

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for the supply of electricity to household customers‍

‍As of: 05/2026

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1. Who is the Contracting Party?

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PLAN-B NET ZERO ENERGY GmbH (here inafter referred to as "PLAN-B NET ZERO ENERGY")

Registered Office: Mühlheimer Tor – Dieselstr. 2, 63165 Mühlheim am Main Managing Director: Markus Schunk

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Registry Court: Amtsgericht Charlottenburg, HRB 151699 B

VAT Identification Number according to §27a

VAT ID: DE 293086561

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2.What kind of electricity does PLAN-B NET ZERO ENERGY supply?

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The electricity supplied by PLAN-B NET ZERO ENERGY is 100% green electricity. The grid operator is solely responsible for the quality of the electricity, particularly the nominal voltage and nominal frequency.

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3.Who can enter into a contract with PLAN-B NET ZERO ENERGY?

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3.1. In principle, any private individual and any company that primarily consumes electricity for their own use can enter into a contract with PLAN-B NET ZERO ENERGY. Supply is provided outside of the basic supply.

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3.2. No maintenance services are offered.

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3.3. Electricity is supplied exclusively to household and commercial customers for their own consumption, up to an annual requirement of 100,000 kWh/year according to a standard load profile and/or a maximum capacity of 30 kW.

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3.4. If the actual supply quantity exceeds the maximum annual supply quantity or the maximum capacity, PLAN-B NET ZERO ENERGY reserves the right to terminate the supply contract with two weeks' notice to the end of a calendar month.

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3.5. PLAN-B NET ZERO ENERGY has no obligation to supply if the grid operator does not permit supply according to the standard load profile, no supplier framework agreement exists for the grid area, no legally valid grid connection and connection usage contract exists for the supply point, or the grid connection is interrupted, or the supply is rejected by the grid operator for other reasons.

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4.How and with whom is a contract concluded? How is communication regarding the contract handled with PLAN-B NET ZERO ENERGY?

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4.1 The customer's contractual partner is PLAN-B NET ZERO ENERGY GmbH. The conclusion of the contract can be initiated by the customer, among other ways, online via the PLAN-B NET ZERO ENERGY website (planbnetzero-energy.com – hereinafter referred to as "website").

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4.2. PLAN-B NET ZERO ENERGY concludes the contracts required for the supply with grid operators. These include, among other things, the operation of metering points by the grid operator as the responsible metering point operator, provided that the customer has not concluded a separate contract with another metering point operator in this regard.

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4.3. Offers for electricity tariffs created by PLAN-B NET ZERO ENERGY based on customer information do not constitute a legally binding offer to the customer.

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4.4. Only by signing the order form or, online, by clicking the "Order with obligation to pay" button, does the customer submit a binding offer to PLAN-B NET ZERO ENERGY to conclude a contract (hereinafter referred to as "order"). Until the binding submission of the order, the customer can correct their selection online at any time by using the correction aids provided in the ordering process.

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4.5. If the customer indicates "supplier change" as the reason for their order during the ordering process, they remain bound by their order for the duration of the supplier change process. In this case, the contract will be concluded taking into account the date on which the previous supplier accepts the termination of the previous supplier for the supply point (if applicable) and on which the respective local grid operator confirms the start of grid usage.

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4.6. PLAN-B NET ZERO ENERGY will handle the termination with the previous supplier on behalf of the customer. However, if the customer has a special right of termination with the previous supplier, the customer must terminate their contract with the previous supplier themselves.

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4.7. PLAN-B NET ZERO ENERGY may check the creditworthiness of a new customer. This is done in compliance with data protection laws via its external service provider. PLAN-B NET ZERO ENERGY is entitled to refuse the acceptance of an order if the creditworthiness is insufficient.

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4.8. The contract is concluded as soon as the order has been confirmed by PLAN-B NET ZERO ENERGY. The order confirmation will always be issued before PLAN-B NET ZERO ENERGY begins the contractual supply of electricity. The order confirmation will be sent in text form via email and will contain all information necessary for the conclusion of the contract, including the customer's supply point and the identification number used to designate the withdrawal point (hereinafter referred to as "meter number"). After the contract is concluded, the customer will be provided with a summary of the most important contract terms. PLAN-B NET ZERO ENERGY reserves the right to reject change requests from customers who have already been supplied by PLAN-B NET ZERO ENERGY twice within the last 12 months, each with a minimum contract term of one month. 5. 6. 7.

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4.9. Unless these contract terms explicitly require communication in 'text form via email', declarations can also be made in any other text form than email (e.g., fax, letter). The email address of PLAN-B NET ZERO ENERGY is: kunde@planbnetzero-energy.com. Emails from PLAN-B NET ZERO ENERGY will be sent to the email address provided by the customer during registration. PLAN-B NET ZERO ENERGY reserves the right to send communications by post in individual cases. For smooth communication, the customer must always keep the email address stored with PLAN-B NET ZERO ENERGY up to date. Changes to the email address must be communicated to PLAN-B NET ZERO ENERGY without delay.

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4.10. For contractual purposes, the customer agrees to receive all communication in electronic form, unless mandatory legal provisions require a different form of communication. Personal data such as bank code, account, and telephone numbers are only partially displayed for protection.

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4.11. Data transmission over the internet (e.g., when communicating via email) may have security vulnerabilities. Complete protection of data from third-party access is not possible. When communicating via email, all documents are currently sent unencrypted.

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4.12. Supply also begins on the date specified in the order confirmation. However, supply will not commence before the customer's cancellation period expires according to §§ 355 para. 2, 356 para. 2 no. 2 BGB, unless the customer explicitly requests PLAN-B NET ZERO ENERGY to do so.

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5.Can a consumer cancel the contract?

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The contract can be revoked within fourteen days of contract conclusion (order confirmation) without stating any reasons. For this, please refer to the cancellation policy sent with the order confirmation.

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6.What happens when changing suppliers? When does electricity supply begin?

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6.1. PLAN-B NET ZERO ENERGY will carry out any potential supplier change promptly and free of charge, in compliance with legal regulations and contractually agreed deadlines.

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6.2. In the event of a supplier change, PLAN-B NET ZERO ENERGY is required to immediately confirm to the customer in text form whether and on what date it can commence the supply requested by the customer.

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‍6.3. Electricity supply begins on the date specified in the order confirmation, but no earlier than when:
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• zwischen PLAN-B NET ZERO ENERGY, dem örtlichen Netzbetreiber und/oder dem Vorlieferant bzw. Messstellenbetreiber des Kunden sämtliche Fragen zum Netzzugang bzw. zum Messstellenbetrieb sowie zur Übernahme des Kunden geregelt sind,
• the upstream supplier has confirmed the termination of the previous contract and
• the local grid operator has confirmed the start of grid usage.

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6.4. This date depends on several conditions, such as the termination of the previous supply contract, no blocking of the connection, confirmation of grid usage by the grid operator, and the grid operator's approval of the metering concept. This process is free of charge for the customer and will be implemented as quickly as possible. PLAN-B NET ZERO ENERGY will communicate the start of supply to the customer.

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6.5. Should PLAN-B NET ZERO ENERGY actually be unable to commence electricity supply on the date specified in the order confirmation, the customer will continue to be supplied either by the previous supplier or by the basic supplier due to the basic supplier's obligations under Sections 36, 38 of the EnWG.

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6.6 PLAN-B NET ZERO ENERGY is not obliged to commence energy supply if the customer's connection is blocked at the scheduled start of supply or if no grid connection exists.

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7. Is the customer permitted to operate their own plants?

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For the duration of the contract, the customer is obliged to procure their entire electricity requirements for the supply point from PLAN-B NET ZERO ENERGY. Excluded is the coverage of demand by own combined heat and power (CHP) plants up to 50 kW electrical output and from renewable energies; furthermore, by own plants that serve exclusively to ensure electricity supply in the event of an interruption of the power supply (emergency generators).

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8.How is the electricity supply remunerated?

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8.1. The electricity price consists of a basic price and a consumption-based price. The amount is agreed upon at the time of contract conclusion. If an effective price change occurs thereafter in accordance with Section 10, the changed price shall replace the previously agreed price.

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8.2. The customer undertakes to pay for the electricity supplied and consumed.

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9.What costs are included in the electricity price?

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The electricity price includes the following costs: Procurement and sales costs, including billing costs, as well as value-added tax, electricity tax, concession fees, grid charges, and the fees of the metering point operator for metering point operation, measurement, and billing, the levy according to Section 26 of the Combined Heat and Power Act [CHP Act levy], the levy according to Section 19, Paragraph 2 of the Electricity Grid Charges Ordinance [§ 19 Strom NEV levy], the levy according to Section 17f of the Energy Industry Act [Offshore Liability Levy], the levy according to Section 18 of the Ordinance on Disconnectable Loads [Levy for Disconnectable Loads – AbLaV], in their respective valid versions.

Upon the introduction of new or the elimination of existing taxes, duties, or government-induced levies and surcharges affecting the electricity price, these will be added as new price components or removed, respectively, in accordance with the actual burden or relief incurred, provided that passing them on to the end customer is permissible and insofar as these price components were not already foreseeable at the time of contract conclusion.

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10. Can PLAN-B NET ZERO ENERGY change prices?

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10.1. Price changes by PLAN-B NET ZERO ENERGY are made through unilateral determination of performance in the exercise of equitable discretion in accordance with Section 315 of the German Civil Code (BGB).

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10.2. The customer may have the fairness of the respective price change reviewed by a civil court. In the unilateral determination of performance by PLAN-B NET ZERO ENERGY, only changes in costs relevant for price calculation according to Section 9 are to be considered. However, for tariffs with a limited price guarantee, a price change cannot be based on changes in procurement and sales costs, including billing costs, during its term. PLAN-B NET ZERO ENERGY is entitled to implement a price change in the event of cost increases and obliged to do so in the event of cost reductions. When determining prices, PLAN-B NET ZERO ENERGY is obliged to consider cost increases only by offsetting them against opposing cost reductions and to net out cost increases and cost reductions.

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10.3. PLAN-B NET ZERO ENERGY must determine the scope of a price change such that cost reductions are accounted for using the same business economic standards as cost increases. In particular, PLAN-B NET ZERO ENERGY may not pass on cost reductions later than cost increases.

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10.4. Price changes will only become effective on the first day of a month and only after notification in text form, with notification provided at least one month before the intended change takes effect.

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10.5. If PLAN-B NET ZERO ENERGY changes prices, the customer has the right to terminate the contract without observing a notice period, effective from the date the price change comes into force (special right of termination). PLAN-B NET ZERO ENERGY will explicitly inform the customer of the upcoming change in text form via email. Termination must be in text form. PLAN-B NET ZERO ENERGY will promptly confirm the customer's termination within one week of receipt in text form via email, stating the contract end date. The right to ordinary termination remains unaffected.

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10.6. Changes to value-added tax (VAT) in accordance with the Value-Added Tax Act, as well as future reductions in charges due to a decrease in the balance of calculation components according to Section 40, Paragraph 3, Number 3 of the Energy Industry Act (EnWG), may be passed on to the customer unchanged without prior notice and without the customer's right to terminate the contract without notice.

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11. How is delivered electricity measured?

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The electricity supplied is determined by the metering equipment in accordance with the provisions of the Metering Point Operation Act.

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12. How is supplied electricity metered?

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12.1. For the determination of the electricity supplied, PLAN-B NET ZERO ENERGY is entitled to use the meter readings transmitted by the local grid operator, metering point operator, or a third party responsible for metering.

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‍12.2. For measurements using a smart metering system as per Section 2, Sentence 1, Number 7 of the Metering Point Operation Act, the values specified in Sentence 1, Number 1 shall be used preferentially. PLAN-B NET ZERO ENERGY will state in the invoice how a meter reading used by it was determined.

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12.3. PLAN-B NET ZERO ENERGY may read the metering equipment itself or require the customer to read it, if this is done

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1. for billing purposes,
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2. due to a change of supplier or
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3. should PLAN-B NET ZERO ENERGY have a legitimate interest in verifying the reading.

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12.4. The customer may object to a self-reading in individual cases if it is unreasonable for them. In the event of a justified objection, PLAN-B NET ZERO ENERGY may not charge a separate fee for its own meter reading.

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12.5. For the purpose of meter reading, the customer must grant access to their property and premises to the authorized representative of the grid operator, metering point operator, or PLAN-B NET ZERO ENERGY, provided they carry identification. The customer must be notified of this in advance, either by direct communication or by a notice posted in the respective building. The notification must be given at least one week before the scheduled access date; at least one alternative date must be offered. The customer must ensure that the metering equipment is accessible.

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12.6. If the local grid operator or PLAN-B NET ZERO ENERGY cannot access the customer's property and premises for meter reading purposes, PLAN-B NET ZERO ENERGY may estimate consumption based on the last reading or, for a new customer, based on the consumption of comparable customers, with due consideration of the actual circumstances. The same applies if the customer fails to perform an agreed self-reading or performs it late.

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13.How are electricity & bonus billed?

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13.1. PLAN-B NET ZERO ENERGY usually bills the supplied electricity once a year after the supplied electricity has been read or determined. However, the billing period must not significantly exceed 12 months. The customer will receive the invoice no later than 6 weeks after the end of the billing period. After termination of the supply relationship, the customer will receive the final invoice no later than 6 weeks later.

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13.2. Instead of annual billing in the customer portal, the customer may request monthly, quarterly, or semi-annual billing. In the case of desired interim billing, the customer undertakes to read the required meter readings themselves and to submit them unsolicited in text form via email to PLAN-B NET ZERO ENERGY by the billing dates communicated by them. If the meter readings are not submitted on time, PLAN-B NET ZERO ENERGY is entitled to estimate the values required for billing.

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13.3. PLAN-B NET ZERO ENERGY may demand advance payments for the electricity supplied during the billing period. The amount of the advance payments is calculated proportionally for the period of the advance payment according to the consumption in the last billing period. If such a calculation is not possible, the advance payment will be based on the average consumption of comparable customers. If the customer credibly demonstrates that their consumption is significantly lower, PLAN-B NET ZERO ENERGY will take this into appropriate consideration.

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13.4. The customer agrees to the electronic transmission of invoices, billing information, and the final invoice by PLAN-B NET ZERO ENERGY. Billing information is based on the determined consumption.

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13.5. Upon request, the customer will receive the invoices and billing information free of charge in paper form once a year. Supplementary information on consumption history since the start of the contract will be provided upon the customer's request, if available.

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13.6. If the billing results in a credit for the customer, PLAN-B NET ZERO ENERGY will refund this within 2 weeks or offset it against the next advance payment.

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13.7. If prices change within a billing period, the consumption relevant to the new prices will be calculated proportionally. Seasonal consumption fluctuations will be appropriately taken into account based on empirical values for comparable customers. The same applies to changes in the VAT rate and other cost components as per Section 9. Advance payments may also be adjusted in such cases.

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13.8. PLAN-B NET ZERO ENERGY may grant the customer a bonus as part of certain tariffs or limited-time promotions. A bonus is not part of the agreed electricity price and does not constitute consideration for the electricity supply, but rather a voluntary additional benefit in accordance with these General Terms and Conditions.

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‍13.9. If the customer has been promised a percentage bonus or a fixed bonus amount in euros that does not fall under the following paragraphs, this will be granted after the end of the first supply year. The bonus is granted as a credit within the annual consumption statement and is offset against the total costs of the actual electricity consumption in favor of the customer.

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13.10. If a so-called "immediate bonus" has been agreed upon, it becomes due and is paid to the customer at the contractually agreed time, up to the promised amount, provided that the contractual relationship remains uncancelled at that time.

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13.11. If a "first-year discount" or an "advance payment bonus" has been agreed upon, the customer receives a percentage discount, up to the agreed amount, on the total costs of the actual electricity consumption within the first supply year. PLAN-B NET ZERO ENERGY is entitled to reduce the monthly advance payments during the first supply year by the corresponding percentage. The final calculation and offsetting will be carried out as part of the annual consumption statement based on actual consumption.

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13.12. There is no entitlement to a new customer bonus if
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• the contractual relationship is terminated by the customer before the expiry of a supply year or for reasons attributable to the customer, or
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• the customer was already supplied by PLAN-B NET ZERO ENERGY at the same supply point within the last six months prior to re-engagement.

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13.13. There is no entitlement to the payment of an immediate bonus if the contractual relationship is terminated by the customer or for reasons attributable to the customer before the agreed payment date, or if the customer has already been supplied by PLAN-B NET ZERO ENERGY at the same consumption point within the last six months prior to renewed commissioning.

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13.14. First-year discounts or advance payment bonuses already granted must be repaid if the conditions for their granting subsequently cease to apply.

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13.15. Offsetting a bonus against claims by PLAN-B NET ZERO ENERGY arising from advance payments or invoices is excluded before the first annual consumption statement is issued, unless these General Terms and Conditions provide otherwise.

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14.When are invoices and advance payments due?

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14.1. Invoices and advance payments are due at the time specified by PLAN-B NET ZERO ENERGY, but no earlier than 2 weeks after receipt of the payment request.

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14.2. The customer may only offset claims by PLAN-B NET ZERO ENERGY with undisputed or legally established counterclaims.

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15.How can the customer pay?

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15.1. The customer can choose between payment by issuing a SEPA Core Direct Debit mandate and a bank transfer to a PLAN-B NET ZERO ENERGY bank account, which incurs a fee for the customer.

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15.2. Should the customer's account or bank account lack sufficient funds, incorrect bank details be provided, and PLAN-B NET ZERO ENERGY be unable to collect the due installment, or if the customer fails to transfer a due installment on time, PLAN-B NET ZERO ENERGY is entitled to charge the customer a fee ("chargeback fee") to cover the actual costs incurred for a chargeback or payment tracking. The chargeback fee is independent of the amount of the claim.

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16.What applies in case of payment default?

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16.1. If the customer defaults by not fully making payments equivalent to one monthly installment within two months, or by not making payments equivalent to two or more monthly installments on time, PLAN-B NET ZERO ENERGY may, if PLAN-B NET ZERO ENERGY again requests payment or has the amount collected by an authorized agent, charge a flat fee for the resulting costs in structurally comparable cases; the flat fee calculation must be easily verifiable. The flat fee may not exceed the costs typically expected in the ordinary course of business. Upon the customer's request, the basis for the calculation must be provided.

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16.2. Repeated payment delays, despite receiving a warning letter from PLAN-B NET ZERO ENERGY announcing immediate termination to the customer two weeks in advance, constitute a material breach of contract and entitle PLAN-B NET ZERO ENERGY to terminate the contract without notice.

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16.3. Furthermore, PLAN-B NET ZERO ENERGY is entitled to interrupt the supply in accordance with clause 20.

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17.What applies in case of calculation errors?

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‍17.1. If an inspection of the metering devices reveals an exceedance of the permissible error limits or if errors are found in the calculation of the invoice amount, PLAN-B NET ZERO ENERGY must refund any overpayment or the customer must pay the deficit. If the extent of the error cannot be clearly determined or if a metering device does not display it, PLAN-B NET ZERO ENERGY will estimate the consumption for the period since the last error-free reading based on the average consumption of the preceding and subsequent billing periods to the error detection, or based on the previous year's consumption; the actual circumstances must be appropriately considered. In the event of calculation errors due to a malfunctioning metering device, the corrected consumption determined by the metering point operator and communicated to the customer shall form the basis for recalculation.

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‍17.2. Claims under clause 17.1 are limited to the billing period preceding the detection of the error, unless the effect of the error can be determined over a longer period; in this case, the claim is limited to a maximum of three years. The three-year period is calculated retrospectively from the point in time when the customer became aware of the possibility of an additional charge. In the case of a refund, the relevant point in time is when PLAN-B NET ZERO ENERGY became aware of the possibility of a refund.

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18. What happens in case of a disruption?

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‍18.1. If an interruption or irregularity in the electricity supply occurs due to a disruption of grid operation, including the grid connection, the customer may be entitled to claims against the customer's grid operator in accordance with statutory provisions. PLAN-B NET ZERO ENERGY is exempt from the obligation to perform if an interruption or irregularity in electricity supply is a consequence of a disruption of grid operation, including the grid connection. Claims due to a disruption of grid operation, including the grid connection, can only be asserted against the grid operator.

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18.2. PLAN-B NET ZERO ENERGY undertakes, at the customer's request, to inform the customer of the reasons for an interruption or irregularity caused by the grid operator, provided these are known to PLAN-B NET ZERO ENERGY or can be reasonably clarified.

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18.3. For claims not covered by Section 18.1, the liability of PLAN-B NET ZERO ENERGY and its agents and/or vicarious agents for damages caused by fault is limited to intentional acts and gross negligence. This does not apply to damages resulting from injury to life, limb, or health, or from the culpable breach of material contractual obligations (cardinal obligations). In the event of a breach of material contractual obligations not caused by intentional or grossly negligent conduct, PLAN-B NET ZERO ENERGY’s liability is limited to the damage that the liable party foresaw as a possible consequence of the breach at the time the respective contract was concluded, or should have foreseen given the circumstances of which it was aware or should have been aware. The provisions of the Product Liability Act and the Liability Act remain unaffected.

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19. When is PLAN-B NET ZERO ENERGY exempt from the obligation to supply?

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19.1. PLAN-B NET ZERO ENERGY is not obliged to commence energy supply if the customer's connection is blocked at the intended start of supply or if no grid connection exists. In the following cases, PLAN-B NET ZERO ENERGY is also exempt from the obligation to supply:

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19.2. insofar and as long as the grid connection or grid and connection usage has been interrupted by the grid operator according to § 17 or § 24 paras. 1, 2 and 5 of the Low Voltage Connection Ordinance / Low Pressure Connection Ordinance or

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19.3. insofar and as long as the grid connection or grid usage and/or connection usage has been interrupted by the grid operator for other reasons for which PLAN-B NET ZERO ENERGY is not responsible. The same applies if this involves consequences of a disruption to metering point operation or

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19.4. insofar and as long as PLAN-B NET ZERO ENERGY is prevented from procuring or contractually supplying electricity for the following reasons:
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• 19.4.1. Force Majeure: Force Majeure, within the meaning of these terms, refers to any external event, unrelated to business operations, that is unforeseeable and unavoidable even with the utmost reasonably expected care (e.g., severe weather), or
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• 19.4.2. Other circumstances that PLAN-B NET ZERO ENERGY cannot eliminate or whose elimination cannot be economically expected of it in accordance with Section 36, Paragraph 1, Sentence 4 of the EnWG.
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• 19.4.3. The continuation of the contract is unreasonable if the changes in circumstances lead to an unjustified shift in the originally agreed balance of performance and consideration, which is inconsistent with the purpose of the contract and the intent of the parties at the time of contract formation.
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• 19.4.4. In cases of economic unviability (e.g., if the usage-based price does not cover the costs for grid fees, taxes, levies, and charges), PLAN-B NET ZERO ENERGY may refuse delivery or terminate the contract.

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20. When is PLAN-B NET ZERO ENERGY entitled to interrupt the supply?

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20.1. PLAN-B NET ZERO ENERGY is entitled to cause the customer's supply to be interrupted without prior notice from the grid operator if the customer is culpably in material breach of a contractual provision and the interruption is necessary to prevent the use of energy by circumventing, tampering with, or prior to the installation of metering equipment.20.1. PLAN-B NET ZERO ENERGY is entitled to have the customer's supply interrupted by the grid operator without prior warning if the customer culpably breaches a contractual provision to a not insignificant extent and the interruption is necessary to prevent the use of energy by circumventing, influencing, or prior to the installation of metering devices.

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‍20.1. PLAN-B NET ZERO ENERGY is entitled to have the customer's supply interrupted by the grid operator without prior warning if the customer culpably breaches a contractual provision to a not insignificant extent and the interruption is necessary to prevent the use of energy by circumventing, influencing, or prior to the installation of metering devices.

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20.2. PLAN-B NET ZERO ENERGY may, in conjunction with the demand for payment, threaten to suspend supply, provided that this is not disproportionate to the severity of the violation.‍

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20.2. PLAN-B NET ZERO ENERGY may, at the same time as issuing a reminder, threaten to interrupt the supply, provided this is not disproportionate to the severity of the breach.

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20.3. Along with the notice, PLAN-B NET ZERO ENERGY also informs the customer of options for avoiding the service interruption that do not incur additional costs.‍

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20.3. With the threat of interruption, PLAN-B NET ZERO ENERGY will also inform the customer about options to avoid the supply interruption that do not incur additional costs.

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20.4. The customer will be notified of the start of the supply interruption at least one week in advance.20.4. The customer will be notified of the start of the supply interruption at least one week in advance.

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‍20.4. The customer will be notified of the start of the supply interruption at least one week in advance.

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20.5. Suspension of service due to late payment is possible under the conditions set forth above only if the customer is in default on payment obligations amounting to twice the amount of the installment or advance payment due for the current calendar month, or, in the event that no installments or advance payments are due, at least one-sixth of the estimated amount of the annual bill. In this case, the payment arrears must amount to at least 100 euros. When calculating the amount by which the customer is in arrears, the following applies:

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20.5. An interruption due to payment default is only possible under the aforementioned conditions if the customer is in default of payment obligations amounting to twice the pro-rata advance or prepayment for the current calendar month, or, if no advance or prepayments are due, with at least one-sixth of the estimated annual bill amount. The payment default must be at least 100 Euros. When calculating the amount by which the customer is in default, the following applies:
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• Any down payments will be deducted.
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• Unadjudicated claims that the customer has formally, timely, and conclusively disputed will not be taken into account.
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• Arrears that are not yet due because of an agreement between the contracting parties will not be taken into account.
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• Arrears resulting from a disputed price increase that has not yet been legally decided will not be taken into account.

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20.6. PLAN-B NET ZERO ENERGY will arrange for the supply to be restored immediately once the reasons for the interruption have ceased and the customer has reimbursed the costs of the interruption and restoration of supply. The costs can be calculated as a flat rate for structurally comparable cases. The flat rates will not exceed the costs to be expected in the ordinary course of events. The customer is free to prove that PLAN-B NET ZERO ENERGY incurred no damage or significantly less damage. Upon the customer's request, PLAN-B NET ZERO ENERGY will provide proof of the basis for calculation.

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21. How long does the contract run and how can it be terminated?

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21.1. The contract runs for an indefinite period and can be terminated by the customer or PLAN-B NET ZERO ENERGY at any time with one month's notice in text form ("ordinary termination"). The notice period begins upon receipt of the termination by the respective contracting party.

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21.2. For tariffs with a fixed contract term, the customer unilaterally has the right to switch to a tariff without a fixed contract term within the agreed contract period. In this case, the customer must notify the change in text form, specifying the newly chosen tariff, with one month's notice before the change date. PLAN-B NET ZERO ENERGY will confirm the customer's change immediately by email within one week of receiving the notification. The confirmation of the change will include a summary of the key contract terms for the chosen tariff without a fixed contract term.

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21.3. If the customer wishes to terminate because they have chosen another supplier, they can authorize that supplier to handle the termination. If the customer wishes to terminate the contract with PLAN-B NET ZERO ENERGY without having chosen a new supplier, the termination of the contract with PLAN-B NET ZERO ENERGY must be in text form.

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21.4. Any termination must always be in text form. Sending a written termination by post is not necessary, but is, of course, possible.

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21.5. PLAN-B NET ZERO ENERGY will confirm a customer's termination, specifying the contract end date, immediately by email within one week of receiving the termination.

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21.6. The right to extraordinary termination for good cause in accordance with § 314 BGB remains unaffected. Good cause exists, in particular, in the event of a repeated, non-insignificant breach of essential contractual obligations despite a warning (e.g., in case of payment default).

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21.7. In the event of an extraordinary termination by the customer, it is advisable, based on experience, for faster processing of the supplier change, to terminate the contract oneself and to inform the new supplier that it is an extraordinary termination by the customer.

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22.What happens if the customer changes residence?

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22.1. In the event of a change of residence, the customer undertakes to inform PLAN-B NET ZERO ENERGY in text form, no later than six weeks before moving out, of the move-out date, the new delivery address, the new billing address, the move-in date, and, if known, the new meter number.

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22.2. Together with the notification, but no later than six weeks before moving out, the customer may terminate the contract for supply at the previous consumption point without notice, effective on the communicated move-out date or at a later date.

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22.3. In the event of a change of residence by the customer, PLAN-B NET ZERO ENERGY will check whether supply at the new consumption point is possible and whether it can offer the customer supply at the new residence under the previous contract terms. Otherwise, PLAN-B NET ZERO ENERGY will check for a possible supply at the new consumption point at new prices, including a new limited price guarantee. PLAN-B NET ZERO ENERGY will communicate the result of this check to the customer within 2 weeks.

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22.4. The customer's extraordinary termination will not become effective if PLAN-B NET ZERO ENERGY informs the customer within 2 weeks of receiving the extraordinary termination that supply at the new consumption point is possible under the previous contract terms.

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22.5. If the customer does not accept PLAN-B NET ZERO ENERGY's offer for a possible supply at new prices, including a new limited price guarantee, within 2 weeks, the contract will end on the move-out date communicated by the customer, unless the customer has terminated the supply at the previous consumption point with effect from a later date.

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22.6. Should the customer inform PLAN-B NET ZERO ENERGY too late or not at all about the change of residence, the customer is responsible for any damage arising therefrom and is obliged to compensate PLAN-B NET ZERO ENERGY for it.

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23.Can these Terms and Conditions change?

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23.1. In the event that PLAN-B NET ZERO ENERGY wishes to amend these GTC, the amended GTC will be offered to the customer in text form via email at least 6 weeks before the date on which the new GTC are intended to become effective.

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23.2. The amendments offered by PLAN-B NET ZERO ENERGY shall only become effective if the customer accepts them, if applicable, by way of the fictitious consent regulated below in Section 23.3.

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• 23.2.1. If a not insignificant disruption to the balance of the contractual relationship existing at the time of contract conclusion must be remedied due to unforeseeable changes that PLAN-B NET ZERO ENERGY did not cause and over which PLAN-B NET ZERO ENERGY has no influence.

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23.3. The customer's silence shall only be deemed acceptance of the amendment offer (fictitious consent) if

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• 23.3.1. the amendment offer from PLAN-B NET ZERO ENERGY is made to ensure the conformity of the contractual provisions with a changed legal situation
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to restore, because a provision of these GTC
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• no longer complies with the legal situation due to a change in laws, including directly applicable legal provisions of the European Union, or
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• becomes invalid or may no longer be used due to a legally binding court decision, even by a court of first instance, or
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• due to a binding order from a national (e.g., Federal Network Agency) or international (e.g., European Commission) authority responsible for PLAN-B NET ZERO ENERGY, it can no longer be reconciled with PLAN-B NET ZERO ENERGY's legal obligations, and
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• 23.3.2. the customer has not rejected the amendment offer from PLAN-B NET ZERO ENERGY before the proposed effective date of the respective amendment. PLAN-B NET ZERO ENERGY will inform the customer in the amendment offer about the consequences of their silence.

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23.4. The fiction of consent does not apply
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• for changes to the main contractual obligations, including price changes, or
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• for changes that are equivalent to concluding a new contract, or
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• for changes that significantly alter the previously agreed balance of performance and consideration,

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would significantly shift in favor of PLAN-B NET ZERO ENERGY. In these cases, PLAN-B NET ZERO ENERGY will obtain the customer's consent to changes in another way.

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23.5. If PLAN-B NET ZERO ENERGY makes use of the fiction of consent, the customer may terminate the contract affected by the change without notice and free of charge before the proposed effective date of the changes. PLAN-B NET ZERO ENERGY will specifically inform the customer of this right of termination in its change offer.

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24.What happens in case of a dispute?

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24.1. The place of jurisdiction is the customer's respective place of electricity consumption.

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24.2. For questions and complaints regarding electricity supply, the customer, as a consumer according to §13 BGB, can contact PLAN-B NET ZERO ENERGY: PLAN-B NET ZERO ENERGY GmbH, Kurfürstendamm 188/189, 10707 Berlin.

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24.3. For dispute resolution, private customers can apply for an arbitration procedure with Schlichtungsstelle Energie e.V. This requires that no mutually satisfactory solution has been found between the customer and PLAN-B NET ZERO ENERGY customer service. PLAN-B NET ZERO ENERGY is obliged to participate in the arbitration procedure. Schlichtungsstelle Energie e.V. Friedrichstraße 133 10117 Berlin Tel. 030-2757240-0, Fax 030-2757240-69 E-Mail: info@schlichtungsstelle-energie.de Internet: www.schlichtungsstelle-energie.de

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24.4. The EU Commission has provided an internet platform for online dispute resolution (the "ODR platform"). The ODR platform serves as a point of contact for out-of-court settlement of disputes concerning contractual obligations arising from online sales contracts. The ODR platform can be accessed via the following link: https://ec.europa.eu/consumers/odr

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25.Where can one get further information about the currently applicable tariffs?

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25.1. The currently applicable tariffs and bundled products can be viewed on the website www.planbnetzero-energy.com.

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25.2. Upon conclusion of the contract, the customer will receive a welcome email with all contract components and agreed prices.

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25.3. The prices currently applicable to the ongoing contract can also be viewed by the customer in their customer account once they are being supplied.

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26.How can customer service be reached?

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Customers can reach customer service by email: kunde@planbnetzero-energy.com or via the customer portal.

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27.How can the Consumer Service of the Federal Network Agency be reached?

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The Consumer Service of the Federal Network Agency provides information on applicable law, the rights of household customers, and dispute resolution procedures for electricity and gas, and can be reached at the following contact details: Bundesnetzagentur für Elektrizität, Gas, Telekommunikation, Post, Eisenbahnen Verbraucherservice Postfach 8001 53105 Bonn Mon-Fri: 9 AM to 3 PM Tel. 030-22480-500 (nationwide information hotline) Fax 030-22480-323 E-Mail: verbraucherservice-energie@bnetza.de

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28.Where can one get advice on energy matters?

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Information on how to reduce energy consumption can be obtained from the Federal Office for Energy Efficiency (https://www.bfeeonline.de/BfEE/DE/Home/home_node.html), the German Energy Agency DENA (https://www.dena.de/startseite/), and the consumer centers (https://www.verbraucherzentrale.de/wissen/energie).