Commercialization on the control power market
On the control power market is tendered inter alia the demand for the primary control power of the transmission system operators (ÜNB) for the following calendar days. Thereby every provider receives below the marginal price an award to his offered price (EUR / MW). All received offers for a weekly auction are sorted according to the offered prices. The offered power (positive or negative) has to be kept ready for the respective period.
In the auction period from 01/02/2017 to 01/08/2017 the marginal price was 3,388.00 EUR/MW. In this way every offer received an award below this price and the provider who set the marginal price received an
award for the required part of his offered power. The average received offer price amounted to 3,076.54 EUR/MW. On the assumption that the auction prices and tendering quantities for the 52 calendar days are
identical an average yearly turnover of 52 x 3,076.54 EUR/MW = 159,980.08 EUR/MW could be obtained.
The market access is limited by the necessary
The pre-qualification comprises checking the technical devices as for the conditions required by the transmission system operators (ÜNB). Providers who sum up and offer more small installations to a virtual power plant are explicitly desired by the legislator. The minimum power for a submission of tenders
is 1 MW, which would be obtained while pooling of six installations.
Thanks to the installation can be provided not only the positive primary control power (supplying electricity from an accumulator), but also the negative primary control power (feed-in of the current into the
accumulator). The accumulators can be as a result economically efficiently charged. It is especially interesting if in the electricity exchange negative energy prices are negotiated and the accumulators are charged by it – the economical advantage of the plant becomes in this way even better.
Marketing of Peak Shaving
The Peak Shaving can be obtained in two ways: either the load of the particular users is lowered and suspended in time (Load Management or Demand Side Management) or the users cover their demand
by themselves thanks to switching on or booting of additional producing or accumulating installations. Thanks to the high accumulator capacity no increase of the grid power is necessary while a simultaneous
DC-charging of a few e-vehicles, for example for a fast restaurant.
Lowering and smoothing of peak loads is called Peak Shaving, too. It is used to avoid shortages of the power supply in the times of an especially high electricity demand as well as to relieve the park of power plants and to use it up in a summarily more efficient way.