Procedure in the case of connection requests by downstream grid operators for the purpose of feeding into the Amprion grid
Amprion creates the prerequisites for feeding electrical energy from downstream grids into the transmission grid according to the following transparent and non-discriminatory procedure in accordance with §17 EnWG.
The procedure for the assignment of capacities for feeding in electrical energy from downstream grids encompasses various steps, which are individually explained under B.. The procedure commences upon receipt of a qualified inquiry (B. 1.). This is basically followed by the assignment and preparation of a feasibility study (B. 2.), a capacity commitment (B. 3.) and corresponding contracts (B.4.).
1. Qualified enquiry
Qualified enquiries for the purpose of feeding electrical energy into the transmission grid (referred to as feed-in requests in the following) are addressed to Amprion in the form of a registered letter. They must include substantiated information on the contents specified in Annex 1. If substantial information is missing from the written feed-in request or data are implausible, the enquiry is not initially deemed as a qualified feed-in request. In the event of missing information, Amprion will inform the prospect in writing within one week, asking it to subsequently submit the missing information or to verify plausibility within a period of grace of one week. If this is carried out within the period of grace, the prospect's enquiry will be deemed qualified retroactively to the time of the original application, otherwise the inquiry will be finally deemed not qualified.
Feed-in enquiries must be addressed to:
Amprion will publish the receipt of qualified enquiries on its Internet site in anonymous form, so that prospects can obtain an overview of current feed-in capacity developments within the Amprion control area in advance.
2. Grid studies
2.1 Individual feasibility study
Once a qualified inquiry has been received, Amprion will offer the prospect the execution of a technical feasibility study within two weeks following receipt of the complete data pursuant to number B.1
Apart from the general network evaluation of the feed-in options to the Amprion extra high-voltage grid, this feasibility study will also determine the fitness of any existing grid connection points or, if necessary, new grid connection points and review any other effects of the feed-in request on the grid.
The prospect will be liable to pay the costs of the feasibility study, which will be prepared within two months after the relevant prerequisites have been met. Refer to the sample offer under the following link for further details.
2.2 Load flow model
Amprion additionally publishes an overview of the development of the national power flow and the installed power plant capacity within the Amprion grid area in the Internet. This is a simplified model showing the future power plant feed-in situation and load flows ("electricity transmission 2013"). This is based on findings and forecasts regarding the development of the feed-in and load situation. In addition to the individual feasibility study, the model provides prospects with indications regarding the grid situation in the feed-in region.
3. Capacity commitment
On submission of the feasibility study results, Amprion will issue the prospect with a capacity commitment.
The capacity commitment guarantees the grid concept examined in the feasibility study to the prospect. The capacity commitment lapses if the basis of the feed-in request is no longer given.
The prospect will inform Amprion of the current status of the basis of the feed-in request following the issue of the capacity commitment and then subject to the occasion.
Refer to the sample capacity commitment under the following link for further details.
4. Contractual relationship
On implementation of the circumstances forming the basis of the capacity commitment, this is transferred to an unlimited contractual relationship.
5. Dealing with competing grid feed-in requests
Competing feed-in requests exist if qualified feed-in requests are addressed to Amprion and these affect each other in grid terms in such a way that not all feed-in requests can be implemented or subordinate inquiries with lower priorities lead to higher connection costs in relation to those inquiries which have been received earlier and have therefore been given priority.
In the event of a competing situation, Amprion will, if this has not already been carried out, issue a capacity commitment to the feed-in request with temporal priority without consideration of the competing inquiries, if the prerequisites in accordance with number B.3 are met.
If the capacity commitment issued to the first prospect lapses, it can no longer claim priority over the competing feed-in request.
The parties affected by a competing situation will be informed in anonymous form regarding competing feed-in requests.
In the event that contractually assured grid capacity for feeding in electrical energy from downstream grids is increased by more than 5%, the party feeding-in must run through the entire procedure in accordance with numbers B.1. to 4. for all of the additional feed-in capacity which is required.
7. Reservation regulation
Amprion reserves the right to adapt the procedural model to the new specifications if any relevant, legal provisions or regulations are enacted or modified and in the event of any requirements imposed by the Federal Network Agency (Bundesnetzagentur).
A concise presentation of the system diagram can be found in "Electricity Transmission 2009 - Region Model" and "Electricity Transmission 2013 - Region Model" or our company profile. In case of a vested interest, a system diagram with all electricity circuits, switchgears, busbars and substations may be requested from Amprion GmbH under acceptance of a declaration of confidence. For this purpose, please send a letter specifying your vested interest and with a signed declaration of confidence attached to the following address.