INDEPENDENT ENERGY ESTIMATOR

Calculate Your Exact Solar & Battery Payback Period

Free interactive estimator with live Octopus Energy SEG export rates and statutory MCS efficiency curves.

Quick Household Presets:

Parameters & Inputs

Live Dynamic
£160
Your average monthly power bill from your energy provider.
4.5 kWp
Typical UK domestic roof hosts 3.5 to 5.0 kWp.
Include Home Storage Battery (10kWh)?Battery Added

Calculated Estimate

Official 2026 MCS Model
Estimated Annual Cash Savings
£1,382.40
Estimated Payback Period
5.90 Years
20-Year Net Energy Dividend
£19,498.00
Estimated Grid Independence:78% Self-Powered
Engine: Statutory 2026/27 Benchmark v2.4Ref: MCS-EN7202 · Calibrated Daily
Est. Annual Savings£1,382.40 / yr
STEP 2 · READY TO INSTALL?Turn your estimate into an accredited physical installation

Request Free MCS-Certified Installer Quotes

Get matched with top-rated local engineers for an exact physical roof shading and structural assessment.

100% FREE · NO OBLIGATION

By clicking below, you agree to receive up to 3 quotes from accredited, MCS-certified local installers. Your details are strictly confidential and never sold to spam call centers.

256-Bit SSL Encrypted•MCS Certified Only