Panoramic illustration of a UK house with solar panels and an electric car charging on the driveway.

Solar Butter

Energy systems installation and planning from Solar Butter

Optimise the system first. Install from the data.

At Solar Butter we take the guesswork out of energy systems, providing your home or business with tailored recommendations from sophisticated models. We take a data-centric approach to solar PV and battery design and installation, using your hourly consumption data to optimise system size, operating strategy, and expected returns before installation decisions. You can use the platform yourself whether you choose us or not for installation. We have an expert installation team.

  • We believe every homeowner and business should have the best tools and data available to them

Example system analysis

UK semi-detached home

Example Solar Butter analysis output showing charts, system inputs, and yearly energy analysis.

Visible outputs

View the performance before you commit to install.

Review monthly energy flows and how battery state of charge varies through the day to understand how a solar PV design is expected to perform and what returns the system may support.

This is what we can consider in your energy system.

Battery

32 kWh capacity

Solar PV

12.4 kW -south

Inverter

5.0 kW import / 5.0 kW export hybrid, AC-coupled battery

Load consumption

4,200 kWh/yr from a hourly import profile

Heat pump

8.0 kW design heat loss, SCOP 3.7, weather-compensated flow

Tariff

Time-of-use import and export, standing charge, VAT included

Monthly Energy Totals

Energy flows by month: solar, load, grid import, grid export.

JanFebMarAprMayJun
Solar Generated Load Grid Import Grid Export

SOC Distribution by Hour

Spread of battery charge levels by hour

12a 4a 8a 12p 4p 8p

Decision flow

Model first. Optimise second. Install only if you want to.

  1. Model your home

    Define the site, load, tariff, and candidate equipment so the system is represented explicitly.

  2. Optimise the design

    Inspect energy flows, cost curves, and scenario deltas to understand which solar PV and battery configuration performs best.

  3. Install with us, or not

    Use Solar Butter for implementation if you want, or take the model output forward yourself. The optimisation work still stands on its own.

What we do

Local coverage

Where we operate

Solar Butter is based in Gloucestershire and services the local and surrounding areas. We would certainly be open to other areas of course! Give us a bell.

  • Gloucester
  • Cheltenham
  • Stroud
  • Tewkesbury
  • Cirencester
  • Bristol
  • Birmingham
  • Oxford
  • Ross-on-Wye
  • Worcester
  • Hereford
  • Newport
  • Cardiff
Check coverage for your postcode
Map showing the Solar Butter service area across Gloucestershire and the surrounding areas.
Servicing Gloucestershire and the surrounding areas

Solar savings

Most installers pitch something like: "Save an average of £874 a year on electricity..."

Not us.

We'll optimise you system to target your requirements whether it's maximum ROI or maximum savings potential

See our evidence-based approach in this battery payback case study .

Start your enquiry See how we model it

Our claims explained

We target at least an 80% reduction in your electricity bills where the home and usage support it. Tailored recommendations come from your actual usage and site potential - we compare a variety of methods (solar, battery, tariffs, EV and load patterns) in a whole-home simulation to give tailored, optimised estimates.

*Illustrative figures from our energy models. Your savings, annual spend, and payback depend on your property, equipment, behaviour, and tariffs. We will walk through the numbers for your home.