My Lords, the draft instrument seeks to amend two secondary legislation packages for the capacity market. The powers to make this implementing secondary legislation are found in the Energy Act 2013, which, following scrutiny in the House and the other place, received Royal Assent in December 2013, with cross-party support. The five changes contained in the draft instrument are essentially technical to improve fairness, ensure the competitiveness of auctions and provide important clarifications to scheme operations. They were supported by the majority of respondents in consultation.
Before I explain the changes in detail, it may be helpful as a reminder to noble Lords if I say a few words of background about the capacity market itself. Ensuring that families and businesses across the country have secure, affordable energy supplies that they can rely on is a top priority. We are facing challenges to electricity security of supply resulting from the closure of older plant and the move towards less polluting, but more intermittent and inflexible technologies, such as solar, wind and nuclear. That is why we have the capacity market; this scheme ensures that there will be sufficient electricity capacity in Great Britain for this winter and beyond. It gives generators confidence that they will receive the revenue they need to maintain, upgrade and refurbish their existing plant, and to finance and build new plant to come on stream as and when existing assets retire. It also ensures that those who are able to shift demand for electricity away from periods of greatest scarcity, without detriment to themselves and to the wider economy, are incentivised to do so.
It does this by offering capacity providers, who are successful in competitive auctions held four years and one year ahead of delivery, a steady, predictable revenue stream on which they can base their future investments. In return for these capacity payments,
providers must meet their obligations to deliver electricity or reduce demand at times of system stress or face penalties.
The capacity market is working. Fierce competition between providers in the auctions held to date meant that we obtained the required capacity at prices below the levels many had expected. That is good for consumers as it translates to lower costs on bills. The capacity market is driving investment in new, flexible capacity. The most recent four-year-ahead auction secured over 3.4 gigawatts of new-build generating capacity, including combined-cycle gas turbines, open-cycle gas turbines, small flexible engines and battery storage, as well as 1.4 gigawatts of demand-side response.
The clear message from industry and investors is that the mechanism retains their confidence and is the best available approach for ensuring our long-term security of supply. Industry and investors also stress that regulatory stability is crucial but that the scheme, operating in a rapidly changing environment, must be regularly reviewed to ensure it remains fit for purpose. The changes set out in the instrument are the latest in a series of amendments that ensure the scheme is kept relevant and workable. I will briefly expand on the amendments.
First, the instrument amends the method by which the costs of the capacity market are recouped from suppliers. It was felt the current supplier charge arrangements potentially gave an unfair advantage to embedded generators—smaller generators connected to the lower voltage distribution network—and could distort the outcome of the capacity auctions. That arises because, under current arrangements, suppliers are charged according to their share of total demand at peak times, measured by the demand they place on the transmission grid. That is their net demand. By contracting with embedded generators to run over winter peaks, some suppliers are able to reduce their net demand and therefore their share of capacity market costs, with others having to pay more. With some of the savings inevitably being passed on to the embedded generators, such arrangements unintentionally risk giving them a double payment for what is essentially only one contribution to security of supply. The instrument addresses the issue by amending the basis of the capacity market supplier charge and settlement costs levy from net to gross demand. That is a fairer way of sharing costs between suppliers: it ensures suppliers’ costs reflect their overall demand and helps ensure a level playing field between different generators in the auctions.
Secondly, the instrument seeks to prevent new and refurbishing plants being overcompensated in the capacity market where they are also in receipt of aid through risk finance schemes such as the enterprise investment scheme, seed enterprise investment schemes and venture capital trusts. Currently, there is a risk of double subsidy, which would likely distort the outcome of the capacity auctions. To ensure fair competition and value for money for consumers, the instrument asserts that where a capacity provider has accessed investment through one of these risk finance schemes to fund capital expenditure, their capacity payments must be reduced until such a time as this has been off-set.
These off-setting arrangements ensure that the total amount of aid is capped at the amount awarded in the capacity market auction.
Thirdly, the instrument seeks to remove an inconsistency in the way demand-side response capacity is de-rated relative to other capacity types. De-rating is the process by which the volume of a provider’s capacity is adjusted to reflect the reliability of the technologies being used. Unlike other participants, demand-side response providers can nominate a lower amount of capacity to bid into an auction than the capacity they estimated at pre-qualification stage, but that nominated amount is not currently subject to de-rating. The instrument addresses that by ensuring that the nominated value is de-rated, thereby improving the overall reliability of the capacity that is procured. I hope noble Lords have got that.
Fourthly, the instrument clarifies the requirement that capacity market participants maintain credit cover until they have fully discharged all the requirements against which the credit cover has been lodged. In addition, the instrument puts beyond doubt that a party’s credit cover will not be drawn down where a termination fee is due unless the termination fee is unpaid.
Finally, the instrument amends the name, but not the substance, of the capacity market warning—a notification that must be issued in specific circumstances under the scheme. Revision to the capacity market notice better reflects the nature of the notification and will be clearer for participants.
My department published two consultations on these changes during September and October last year. In total, 38 responses were received across the two consultations. There was significant support for the majority of the proposals raised. I look forward to hearing what noble Lords have to say about the proposed changes.