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

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.
Solar PV
Inverter
Load consumption
Heat pump
Tariff
Monthly Energy Totals
Energy flows by month: solar, load, grid import, grid export.
SOC Distribution by Hour
Spread of battery charge levels by hour
Decision flow
Model first. Optimise second. Install only if you want to.
Model your home
Define the site, load, tariff, and candidate equipment so the system is represented explicitly.
Optimise the design
Inspect energy flows, cost curves, and scenario deltas to understand which solar PV and battery configuration performs best.
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
Our simulation software models the whole house energy system including solar panels, batteries, house load and even heat pumps to give reliable, accurate results. See a heat pump + PV case study.
Install tidy, dependable EV charging with practical guidance on placement, capacity, and future-ready expansion.
Upgrade energy resilience, shift usage away from peak tariffs, and prepare your home for smarter battery control.

Full solar installation is coming soon. Join the waitlist now and we will keep you informed as this service opens.
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

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 .
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.