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The STA calls for solar net zero budget

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Energy Global,

The Solar Trade Association (STA) is calling on the government to deliver a budget that unlocks the potential of solar energy in the UK and empowers the transition to net zero greenhouse gas emissions.

Exemption for solar from business rates, fair tax treatment, zero-interest loans for green home improvements and a commitment to procure renewable energy for the civic estate are the key recommendations made to the Treasury in the association's budget representation.

Additionally, a recommendation that the Government hold regular CfD auctions which include solar has been adopted as policy.

The Committee on Climate Change estimates that the UK's solar power capacity will have to triple by 2030 in order to be on track for the Government's legally binding target of net zero greenhouse gas emissions by 2050, while a new report released by the National Infrastructure Commission estimates as much as 121 GW will be needed by 2050.

The STA reports that a disproportionate business rates presents the biggest barrier to the deployment of large rooftop solar installations. Amendments to how rates are calculated for rooftop solar, introduced in 2017, saw the annual rates bill for an average commercial rooftop PV installation skyrocket. Calls for reform, including to accommodate solar and other onsite renewable technologies, have been made by several business associations including the British Retail Consortium. An exemption from rates for solar would bring the technology on an equal tax footing with gas CHP, which is currently exempt.

According to the STA, solar was hit by a change in how VAT is applied in late 2019, with high-end systems, those combined with battery storage, and those acquired through collective purchase schemes now liable to attract a 20% rate, significantly increasing the cost of some domestic systems. Following the UK's departure from the EU, the industry expects the rate change to be reversed, and the STA is calling for battery storage to be added to the Energy Saving Materials list in the interim to enable this nascent technology access to a reduced rate of 5% VAT.


Zero-interest loans have been utilised successfully in Scotland, through the Home Energy Scotland scheme, and a nationwide roll-out would likely drive consumer demand and ensure the 60% of households who want to get solar are more able to, according to ClientEarth's 'Climate Snapshot' report. The cost of a typical 4 kW domestic system has fallen significantly over the past decade, from approximately £12 000 in 2010 to around £5000 in 2020.


The STA is also calling on the government to lead by example by committing to powering the civic estate with 100% renewable energy, which will enable cut the operating costs of the estate and accelerate its decarbonisation. Many local authorities and businesses have already committed to renewable energy procurement targets via the UK100 and RE100 schemes respectively.

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