Commercial solar

Fully-funded commercial solar.

Beyond grants, we offer extended relationships with key funders that allow installations under a Power Purchase Agreement (PPA) — clean energy with no significant upfront cost.

Beyond grants, we offer extended relationships with key funders that allow installations under a Power Purchase Agreement (PPA) — clean energy with no significant upfront cost.

  • Power Purchase Agreement (PPA) — no upfront capital required
  • Business solar grants and tax-deductible asset finance
  • 15-year product / 25-year performance guarantee
  • Minimum disruption installation by MCS-certified engineers

Why Alliant?

  • • MCS-certified design & install teams
  • • 25-year performance guarantee
  • • Award-winning customer support
  • • Fast nationwide service

Proof in numbers

Recent commercial projects.

All case studies →

Ready when you are

Three easy ways to get started.

Whether you want a tailored quote, a free brochure to share with the team, or a quick callback from one of our renewable engineers — we'll respond within one working day.

Trusted quality professionals

Accredited, certified & insured.

All our installers are highly accredited and hold the following quality assurance and safety certificates.

Industry accreditations including TrustMark, MCS, NICEIC, NAPIT, Gas Safe, Green Deal, PAS 2030, Mitsubishi Electric Partner, Ecodan, HIES, CIWA, Quality Mark Protection, Installation Assurance Authority and Living Wage Employer