IEEE Power & Energy Magazine - November/December 2015 - 76

a change of market rules in November 2011, many onshore
and offshore wind plants participate with their bids in the
regulating power market, both for upward and downward
regulation. Usually, wind bids of up to ~700 MW are offered
to this market.
In Spain, the approval of Royal Decree 413/2014 in June
2014 has opened the possibility for variable generation services to participate in the ancillary services markets as conventional providers in the Spanish system. Such a possibility
had been banned before, as only controllable generation that
could follow curtailment instructions from the TSO without spilling primary energy could participate. Nonetheless,
participation in ancillary services by variable generation
services is not yet a reality because the technological requisites for participation and the tests that have to successfully
be carried out by such providers are still to be approved by
the Spanish Ministry of Industry, Energy, and Commerce.
Many variable generation promoters have shown interest in
this possibility, which could be approved at any time.

GB: Centralized Capacity
Auction (First Auction
Late 2014)

The Capacity Markets Question
Despite the fact that many European countries have a significant generation overcapacity (see Table 1), several EU
countries are concerned that "energy only" electricity markets will not be able to deliver sufficient capacity to meet
electricity demand at all times in the future. The increasing
amount of wind and PVs leads to low-and in some markets
even negative-market prices for many hours, leading conventional plants to reduce operation hours, combined with a
reduction of base load operation and an increase of peak generation. Therefore, many operators of conventional power
stations (particularly, gas plants as a result of high gas prices)
are considering switching off because they are losing money.
Some countries are discussing or, in the case of Germany, for
example, have already decided on switching off all nuclear
power stations. In addition, the operation of coal power stations is more and more challenged by the public in Europe.
There is growing concern in Europe that the current market environment may not provide strong enough incentives

SE and FI: Strategic
Reserves; to be Gradually
Phased Out by 2020

IE and NI: Capacity
Payments Since 2007
BE: Tenders for New
CCGT Plants →
Strategic Reserves

LV and LT: Capacity
Payment Since 2011

FR: Capacity Obligations
(Since Late 2014)

PL: Operational and
Strategic Reserves

PT: Capacity Payment
for New Units
(Reduced in 2013)

ES: Capacity Payment
for New and Existing
Units (Level of Support
Reduced in 2013)

Energy-Only Market
Implemented CRM
Strategic Reserve
New CRM/Under Analysis
Outside the EU

DE: Whitebook from
07/2015 Aims at
Strategic Reserves

IT: Capacity
Payments →
Reliabillty Options

GR: Capacity Payment

figure 11. CRMs in Europe. (Source: Energinet.dk 2015.)
76

ieee power & energy magazine

november/december 2015


http://www.Energinet.dk

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - November/December 2015

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