Redispatch 2.0
Redispatch 2.0 READY - what you need to know
Redispatch 2.0 has been in force since October 1, 2021 and is mandatory for plant operators. In addition to conventional power plants, this also affects renewable energy plants of all generation technologies with an installed capacity of 100 kW or more. If the system can be remotely controlled by the transmission system operator, this also applies to systems with an installed capacity of less than 100 kW. This means that you as a plant operator must adjust your planned electricity production in the event of grid bottleneck situations. Redispatch 2.0 therefore entails new roles and obligations for you as a plant operator.
Below you will find answers to the most frequently asked questions about Redispatch 2.0.
What is redispatch 2.0?
The redispatching process was expanded with the amendment to the EnWG and the resulting legislative amendments as part of NABEG 2.0 (May 2019). Since October 1, 2021, all of the approximately 866 distribution system operators (DSOs) and plant operators of renewable energy generation plants have been integrated into the redispatch process. This means that the previously largely independent grid management of the DSOs by means of feed-in management under the EEG will be discontinued and transferred to the redispatch process under the EnWG. The amendment affects RE plant operators of all generation technologies with an installed capacity of over 100 kW.
What is the system definition in redispatch 2.0?
For the purposes of market coupling for redispatch 2.0, your system is referred to as a technical resource (TR) and assigned to a controllable resource (SR). The difference is that the SR is the smallest unit that can be individually controlled by the transmission system operator (TSO) and therefore each TR is assigned to an SR, but an SR can also contain several TRs.
How does the assignment of the TR-ID to the SR-ID work?
The technical resource (TR) is assigned to the controllable resource (SR) by the transmission system operator. This is done using unique identifiers (ID). These are used to assign your individual motors (TR ID) to the transmission system operator’s telecontrol devices (SR ID). The transmission system operators send the assignment of the TR and SR ID either directly to the designated deployment manager (EIV) or to the plant operators, who must communicate the ID to the EIV.
What roles and obligations do plant operators have in redispatch 2.0?
The plant operator as such is initially assigned two process roles in the redispatch 2.0 process. The operator of a technical resource (BTR) is responsible for the operation of a TR. In the role of BTR, you are primarily involved in the communication process for determining and coordinating the outage work you have lost due to actual redispatch measures. In the role of the so-called dispatcher (EIV), you are responsible for transmitting the master data, planning data and non-usability of your system to the TSO for planning the redispatch requirement, regardless of specific redispatch measures. In addition, the EIV is involved in the execution in the event of a call-off – i.e. in the event of actual interventions in the operation of your system by the NB – and is informed of these in advance by the NB. In principle, both roles can also be assumed by a service provider, such as your direct marketing company.
Can I defend myself against a curtailment?
Since the introduction of Redispatch 2.0 in October 2021, special agreements on heat demand in load management have been terminated by many transmission system operators with reference to Redispatch 2.0. You must therefore also expect transmission system operators to completely shut down your planned electricity production in grid congestion situations.
However, heating processes and self-consumption are subject to special protection. You can therefore have your heating obligations or own requirements reported to the transmission system operator by e2m as unclaimable power.
Based on this message, the transmission system operator then knows that curtailing your system would cause higher costs. This will not provide 100% protection against redispatch measures, but this message at least gives you the opportunity to minimize or at least delay the frequency of your calls.
Please therefore notify us of your heating processes and own requirements in good time and remember to inform us of any changes.
What accounting models are available?
In contrast to feed-in management, the balancing group manager (BGM) – usually your direct marketer/supplier – takes on an active role in redispatch 2.0. In contrast to feed-in management, in redispatch the balancing group manager is compensated for the outage work in its balancing group in the event of a call-off, so that it is placed in the same position as if the intervention had not occurred. The plant operator can therefore choose between two balancing models according to which redispatch measures are balanced.
Accounting models:
1. forecasting model means that the transmission system operator independently forecasts the operation of the plants and dimensions redispatch measures on the basis of these forecasts. Its forecasts also apply ex post as an initial mark-up for the coordination of the outage work of a redispatch measure. Operators of a technical resource (BTR) must confirm these or send a counter-proposal.
2 In the planned value model, the dispatcher of a renewable energy plant creates schedules and sends them ex ante via the data provider (DP) to the respective transmission system operators. These schedules form the basis for the dimensioning of measures in redispatch and are also used to coordinate the outage work in the event of a redispatch measure.
What is the difference between a demand case and an acquiescence case?
In the event of a request, the plant operator itself or a person responsible for deployment commissioned by it (e.g. e2m) regulates. In the acquiescence case, on the other hand, the transmission system operator regulates via the existing load management interface. The e2m will report all systems to the tolerance case, i.e. have redispatch measures regulated directly by the transmission system operators.
What forms of accounting for lost work are there?
The outage work defines the balance sheet compensation for a redispatch measure and is the basis for your compensation claim. The following forms of settlement are available:
Flat-rate procedure
Flat-rate means that the feed-in value of the quarter hour before the redispatch measure will be the basis for calculating the outage work of this redispatch measure.
Peakprocedure
In this case, weather data measured on site at the system, such as wind and PV input, are taken into account to calculate the outage work.
Peak-light procedure
Here, weather models or weather data from reference systems (e.g. from a weather service provider) are used as the basis for calculating the outage work.
Are self-supply systems also affected by Redispatch 2.0?
Insofar as these are connected to the electricity grid, the same obligation to participate applies as for all other systems with an installed capacity of over 100 kW. However, you can indicate your self-supply share in the form of continuous non-availability reports. This will be taken into account by the transmission system operator as far as possible when determining your individual redispatch potential.
How are my heating obligations taken into account?
Information on heating obligations is transmitted in the form of continuous unavailability reports (forecast model) and, if necessary, communicated in the real-time data between the distribution system operator and the operator (planned value model). The transmission system operator can only take the effects on the heat supply of the system into account to a limited extent. Costs incurred by the operator in the course of a redispatch measure can be charged to the transmission system operator.
What service does e2m offer me?
In all products in which the system is assigned to our balancing group, e2m takes over the processing of standardized electronic market coupling within the framework of Redispatch 2.0 as a service provider for you. This applies to the market roles “Operator in charge (EIV)” and “Operator of the technical resource (BTR)”.
Does e2m charge fees for its Redispatch 2.0 service?
The implementation of Redispatch 2.0 poses major challenges for plant operators, direct marketers and transmission system operators and requires considerable investment in the digital infrastructure. A uniform, fully digital implementation has still not been implemented across the board by transmission system operators.
Nevertheless, in the interests of our customers, we have decided to offer the service to our customers free of charge and not to pass on the costs incurred by us as a result of the implementation of Redispatch 2.0.
Redispatch measure - who pays what?
By law (EnWG § 13a, para. 2, sentence 1 f.), plants in redispatch are to be treated as if the measures had not taken place. This means that the transmission system operator exchanges with the BTR (operator of the technical resource -> usually the direct marketer) the work that has been performed as an outage work time series and makes a type of replacement delivery to the BTR. This replacement delivery reduces the quantities of balancing energy incurred as a result of the measure. Accordingly, the system is treated as if it had supplied electricity. The quantities from redispatch are therefore included in the normal billing runs and are remunerated at the contract price. This means that
1. the transmission system operator pays the monthly market premium for the outage work incurred for subsidized RE systems.
2. the direct marketer shall pay the respective contract price for the lost work incurred on a monthly basis.
a. Biogas case: The contract price is calculated from the monthly market value less the contractually agreed marketing fee. Realized spot revenues are also taken into account on a quarterly basis as part of the additional revenue settlement. Any outage work incurred is offset (balanced) on your revenue account so that no balancing energy costs are incurred for the redispatch measure.
b. In the case of wind / solar: The contract price results from the spot revenues less the contractually agreed marketing fee.
3. recourse claims: If you incur an economic loss as a result of redispatch measures due to non-functioning downstream processes (e.g. heat obligations), you can charge the transmission system operator for this, as was previously the case.
Note: Operators do not receive any compensation from e2m for redispatch measures taken by the grid operator. By compensating the transmission system operator for its redispatch work, the operator has fulfilled its delivery promise to e2m and receives the redispatch work from e2m in the monthly statements as well as in the quarterly additional revenue statement.
Are redispatch measures from biogas plants also taken into account in my additional revenues?
Yes, in addition to the monthly billing of outage work at the contract price, this is also included in the quarterly additional revenue billing. During periods in which outage work was exchanged with the transmission system operator through redispatch measures, the corresponding production deviation is not calculated as balancing energy, but is treated as if the operator had fulfilled its delivery promise to e2m. As the transmission system operator places a “replacement delivery” in the balancing group in the form of an outage work time series with e2m, the biogas plant operator receives the full additional revenue from e2m in the form of the spot price of the respective quarter hour after division.
Is balancing energy generated by redispatch measures and is this charged to me by e2m?
In short: No.
The transmission system operator exchanges with e2m the outage work of the system via outage work time series (per market location on a quarter-hour basis). E2m treats these time series as a replacement delivery and therefore calculates the exchanged quantities as delivered quantities from the balancing energy quantities. Operators are therefore not charged any balancing energy for the exchanged outage energy quantities.
For wind/solar generators, e2m contractually bears the full balancing energy risk; the explanation is therefore not relevant for this customer group.
Where can I see how much outage work from redispatch measures has been determined for my biogas plant?
You can view the cumulative lost energy quantities for the respective month in your yield overview under the keyword “Redispatch” in the customer portal. This is updated monthly after the end of the respective delivery month.
Unfortunately, it is not yet possible to view individual quarter-hourly measurement series. We are working on being able to provide you with this information soon.
Why are redispatch measures for my biogas plant not taken into account in the payment of the monthly market value?
Due to the surprisingly high redispatch volume for e2m, including in the biogas sector, we have decided to significantly shorten the billing of outage work from an initially quarterly to a monthly interval in the interests of our customers. This ensures that in times of high electricity market prices, our customers do not experience liquidity bottlenecks due to excessively long payment periods on the part of e2m, even if redispatch measures last longer.
Biogas operators already receive monthly compensation for their outage work from redispatch at the contract price. Nevertheless, the consideration of outage work in the quarterly additional revenue settlement remains in place so that the realized spot price revenues for outage work are also applied. In this context, e2m is converting the billing of outage work from redispatch measures to the new billing logic with retroactive effect from 01.10.2021.
What happens if I am not redispatch 2.0 READY?
Non-compliance/non-participation in the redispatch regime constitutes a violation of the law and BNetzA regulations and, in the worst case, can be punished with fines from the BNetzA. In addition, further sanctions by the transmission system operators cannot be ruled out.
BDEW application aids
You can find out more about redispatch 2.0 for yourself on the BDEW website. Here you will find, among other things, the industry solution and the BDEW FAQ.
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