Anger as UK gov’t proposes 15% tax rise for solar, storage purchases

May 7, 2019
LinkedIn
Twitter
Reddit
Facebook
Email
One of the UK’s first Tesla Powerwall installations. A 5% rate of tax applied to solar and energy storage equipment purchases could disappear. Image: Solar Plants.

The national Renewable Energy Association has taken aim at a British government proposal to hike up tax rates attached to some energy saving equipment purchases, including solar and battery storage.

A consultation launched by the government department responsible for tax, HM Revenue & Customs closed late last week, proposing an increase in the VAT (value-added tax, the UK’s sales tax mechanism) attached to these energy saving materials from 5% to 20%, essentially eliminating a discount that had been applied to those products.

It is not the first time that solar PV has been threatened with a higher rate of VAT. In 2015 the European Court of Justice ruled that the UK’s application of a discounted rate was illegal and, despite attempting to fight it, the government eventually conceded that the increase could not be averted.

An increase to 20% – the default rate of VAT for goods and services – was initially expected in the 2016 Budget. However HMRC’s consultation response was absent, and later it emerged that a cross-party group of MPs had voiced their concerns over the plans.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Just a few weeks later, the ECJ published its VAT action plan with no comment on the solar decision, instead electing to “modernise and reboot” Europe’s taxation framework.

Since then the government has remained coy, however the storage market secured a partial victory in late 2017 when HMRC said that domestic battery storage systems could also enjoy the 5% VAT rate as long as they were installed alongside solar systems.

The new consultation seeks to amend the discounted rate so that a full 20% rate of VAT is applied to the machinery costs should they be above 60% of a total installation fee. Labour costs will still benefit from the reduce rate.

There is also a carve out for homeowners who are aged 60 or above and those receiving particular benefits, and housing associations will also be eligible for the reduced rate still. The new rates are proposed to come into effect from 1 October 2019.

But the REA said the increase risks putting the UK market at a “strategic disadvantage” for attracting investment in smart domestic energy systems, and were particularly surprising given how an accompanying impact assessment concluded that the impact on HMRC’s receipts would be “negligible”.

Frank Gordon, head of policy at the REA, said the proposed hike would hit the country’s small-scale renewable sector hard “during an already difficult landscape”.

“This change risks setting back the UK decarbonisation of homes and businesses in the UK by a number of years.

“Despite recent mass climate-related protests and the UK parliament declaring a ‘climate emergency’, the government is again erecting a barrier to cutting emissions and increasing the costs for households who want to help. They are also failing to recognise the cumulative impact of withdrawing as many as 18 policy mechanisms that supported renewable energy deployment since 2015, which could leave the UK trailing behind on decarbonisation and clean growth.”

13 October 2026
London, UK
Now in its second edition, the Summit provides a dedicated platform for UK & Ireland’s BESS community to share practical insights on performance, degradation, safety, market design and optimisation strategies. As storage deployment accelerates towards 2030 targets, attendees gain the tools needed to enhance returns and operate resilient, efficient assets.

Read Next

February 12, 2026
Two BESS projects in Yuma County, Arizona, one from BrightNight, and one from Leeward Renewable Energy, have reached significant milestones.
February 11, 2026
Energy storage developer NineDot Energy closes US$431 million in construction financing for New York BESS projects. Meanwhile, US energy efficiency and renewables company Ameresco completes multiple tax credit transfer and financing transactions for solar PV and BESS.
February 11, 2026
Netherlands-based iron-air long-duration energy storage (LDES) startup Ore Energy has completed a grid-connected pilot of its 100-hour iron-air LDES system at EDF Lab les Renardières in France.
Premium
February 11, 2026
Owner-operator Fidra Energy came out of virtually nowhere to be building one of Europe’s largest BESS in the UK, the 1.4GW/3.1GWh Thorpe Marsh project. We catch up with CEO Chris Elder, about its strategy and projects but also broader BESS and clean energy financing trends.
February 10, 2026
Energy infrastructure platform Revera Energy has completed an expanded US$150 million credit facility to accelerate development and construction of its battery storage, solar, and green hydrogen project pipeline across Australia and the UK.