February 2026
Solar is the world’s fastest-growing source of new electricity. Momentum is continuing to build across Europe and in parts of the UK, as more rooftop and ground-mounted projects come online – producing cheap, clean power.
There is a golden opportunity for the next Welsh Government to seize the solar moment and benefit from affordable energy, nature-positive infrastructure and money directly off bills through more solar rooftops.
We call on all parties to support a partnership between government, industry and communities to deliver these benefits.
Key recommendations:
- Partnership: Come together with industries and communities to seize the potential of solar and other renewable energy technologies.
- Ambition: Deliver at least 5GW of solar and 10GW of battery storage capacity by 2035.
- Rooftop mandate: Implement building regulation changes in line with England’s Future Homes Standard and Future Buildings Standard.
- Finance home upgrades: Align Green Homes Wales and Warm Homes with the Warm Homes Plan, to deliver interest-free/low-cost finance for solar and batteries.‑free/low‑cost finance for solar
- Clear policy on utility-scale solar and battery storage: Issue national guidance confirming their roles, so planning authorities can deliver consistent and confident decisions.
- Planning capacity: Invest in expertise and capacity for planning officers.
- Grid coordination: Shape grid strategic plans to reflect Welsh priorities; ensure flexibility for projects.
- Skills: Launch a 10–15-year green skills plan and convene a dedicated working group with employers.
