What do I need to know before installing solar in the UK in 2026?

Solar installations currently benefit from 0% VAT, households can be paid for exported electricity through the Smart Export Guarantee, and many rooftop installs need no planning permission.

Financial support in 2026

• 0% VAT on qualifying solar and battery systems until 31 March 2027
• Smart Export Guarantee: suppliers pay for exported power, with rates varying by provider (England, Scotland and Wales)
• Warm Homes Support: funded upgrades for lower-income and fuel-poor households
• Warm Homes Loan Scheme: government-backed finance for home energy upgrades

Planning permission

Many standard rooftop installs are permitted development. Listed buildings, conservation areas and protected properties can have extra rules, so check with your local planning authority.

The install process

• 1. Assess your home
• 2. Compare options, rather than assuming the biggest system is best
• 3. Speak to an installer for the survey, final design and quote
• 4. Confirm and install

Choose a certified installer

MCS certification is the UK quality scheme for small-scale renewables. It is often required for grants and for Smart Export Guarantee payments.

All figures are modelled estimates for typical UK rooftops, not guarantees for any individual home. Rules, funding and eligibility can change, so check current government and supplier guidance before deciding.

Next guide: What could solar and battery storage deliver financially in the UK? →