Who we are
Renewable energy specialists you can trust.
Alliant Energy Ltd is an MCS-certified renewable energy company based in Nelson, Lancashire. We design and install solar PV, battery storage, air source heat pumps and EV charging solutions for homes and businesses across the UK.
Our story
Built on expertise, driven by results.
Alliant Energy was founded with a single purpose: to make renewable energy accessible, affordable and genuinely worthwhile for UK homes and businesses. With spiralling energy bills and a growing climate crisis, we saw an opportunity to do things differently.
We only recommend systems we believe in. We only install brands we trust. And we only take on projects where the numbers genuinely stack up for our clients. That honesty has earned us a reputation for delivering real, measurable results — over £1.3M in lifetime savings forecast across our commercial portfolio alone.
From a single-panel domestic system to a 168-panel commercial array, every project gets the same care, precision and commitment to long-term performance.
How we work
Our values.
Certified Excellence
Every installation is carried out by MCS-certified engineers to the highest industry standards.
Transparent Pricing
Fixed-price quotes with no hidden costs. What we quote is what you pay.
Long-term Partnership
25-year performance guarantees and ongoing monitoring mean we're with you for the long haul.
Local Knowledge
Based in the North of England with installations nationwide — we know the UK energy landscape inside out.
Find us
Based in Nelson, Lancashire.
Our team is headquartered at Northlight Industries in Brierfield, Nelson — with engineers working on projects across the whole of the UK.
Address: Unit 214 Northlight Industries, Pendle Road, Brierfield, Nelson BB9 5FL
Phone: 0800 088 4286
Email: info@alliantenergy.co.uk
Hours: Mon–Fri 8am–6pm, 24/7 customer support
Our accreditations
Ready to get started?
Talk to one of our renewable energy specialists today — no pressure, no jargon.