National Infrastructure Commission: Renewables could meet two-thirds of UK's energy demand by 2030

The National Infrastructure Commission has stated that up to 65% of the UK's energy demand could be met by renewable generation within a decade - increasing the proportion from 50% in previous forecasts to account for falling costs.

The Commission had previously recommended 50% renewables by 2030, in line with the old Climate Change Act and with historic pricing

The Commission had previously recommended 50% renewables by 2030, in line with the old Climate Change Act and with historic pricing

According to the Commission’s ‘Renewables, Recovery and Reaching Net-Zero’ report, published today (11 August), there is “no material cost impact, either over the short or long term”, of deploying renewables at an accelerated pace, in line with the nation’s net-zero target. The Commission had previously said, in line with the UK’s original Climate Change Act target of reducing net emissions by 80% by 2050, that renewables should account for 50% of consumption by mid-century.

By 2050, electricity generation should stand at a minimum of 465 TWh, compared to 345TWh in 2019. This will account for the electrification of sectors such as heat and transport, as well as population growth and digitisation.

The report models a variety of scenarios in which the 65% quota is met by 2050, concluding that between 86GW and 99GW of generation must be deployed by the end of 2030 – including a minimum of 40GW of offshore wind. The UK’s Offshore Wind Sector Deal is notably designed to ensure that 30% of electricity generated in the UK comes from offshore wind arrays by 2030, and that capacity increases fivefold through to 2050.

Offshore wind should be complemented with large-scale solar and energy storage, the report recommends, to account for varied generation patterns. It does not take biomass into account, nor nuclear, and recommends that the Government approves a maximum of one new nuclear plant, other than Hinkley C, before 2025.

The report goes on to make a series of recommendations which would accelerate the transition to a low-carbon energy system. The good news, it states, is that “historical peak rates of deployment for each technology are near or above what is now needed in each year to 2030”.

A key recommendation is that the timelines and budgets for future contracts for difference (CfD) auctions are announced further in advance in the future, to cement investor certainty and help the supply chain to prepare. Back in March, the Government reversed its decision to effectively ban onshore wind, solar and energy storage from competing in the CfD, following mounting pressure to do so in light of the net-zero target.

“Attention must also be given to the full range of local and environmental impacts that deploying renewables may have, with barriers identified and overcome,” the report continues, calling for work to build on the Offshore Transmission Network Review.

The Commission’s final recommendation is for the CfD to be altered to “better incorporate the whole-systems costs of generators”, ensuring that generators are responsible for costs and benefits they create outside of their direct operations.

In media materials relating to the report, Commission chair Sir John Armitt said that the National Infrastructure Strategy - due for publication in Autumn following delays relating to Brexit, net-zero and Covid-19 - "needs to include a long-term policy on future energy that... helps deliver the green recovery we all want to see.”

Industry response

Responding to the Commission’s report, RenewableUK’s head of policy and regulation Rebecca Williams said: "The NIC is right to raise its ambition on renewables but we can go even further and even faster. Wind alone can generate more than 50% of the UK's electricity by 2030, so their new 65% target for renewables overall could go even higher.

“We welcome the NIC's call for annual auctions for contracts to generate renewable power, but the most important step that Government could take would be to lift the cap on the amount of new renewable energy capacity we can procure in each auction.  This would allow us to maximise the benefits of cheap renewable power for consumers, cutting bills.

“The NIC is also urging the Government to remove barriers to growth - this has to include a new visionary cross-departmental plan for Ministries to work more closely together, to put the goal of net-zero emissions at the heart of everything they do when formulating new policies. We also need to see better resourcing for bodies like nature conservation organisations which are involved in the planning process, so that they're properly resourced to make the right decisions more swiftly".       

Sarah George



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