Make your solar, battery and tariff work together.
Solful helps UK households compare tariffs, optimise solar and battery storage, and understand the best next step for their home.
Today · Tuesday
Your home energy
Solar today
12.4 kWh
Battery
82%
Holding for peak
Tariff rate
7.0p
Off-peak
Saving / mo
£42
Battery schedule
- Charge from grid00:30–04:30
- Hold for peak15:00–16:00
- Discharge16:00–19:00
Better tariff detected
Intelligent Octopus Go fits your battery pattern better. Estimated saving £312 / year.
The problem
Most home energy systems are not set up to keep pace with changing tariffs
Your tariff changes the value of your battery
Off-peak windows, export rates and time bands all shift the maths. Most setups never get re-tuned.
Manual scheduling is hard to keep up with
Charging plans, app toggles and seasonal usage make 'set and forget' almost impossible.
Most homeowners do not know if their system is performing
Without a clear baseline, underperformance and missed savings go unnoticed for months.
The solution
Solful connects the dots
Tariff comparison
Match your usage profile to the best UK tariff fit.
Battery scheduling
Suggested charge and discharge windows based on price.
Solar forecast
Plan around expected generation, not just the weather app.
Export optimisation
Find the right export tariff and discharge timing.
Installer support
Tools for installers to stay connected after install.
Flexibility readiness
Prepare eligible systems for future grid reward markets.
How it works
From sign-up to savings in five steps
- 1
Create your home profile
- 2
Add solar, battery, EV or heat pump
- 3
Compare tariffs and usage patterns
- 4
Get an optimisation plan
- 5
Track savings, alerts and opportunities
Tariff optimisation
Estimate your annual saving in a couple of minutes
Tell us about your home and current tariff. Solful will compare common UK options and suggest a better fit.
Postcode
SE1 2AA
Annual usage
4,200 kWh
Current supplier
British Gas
Current tariff
Standard Variable
Unit rate
28.6 p/kWh
Standing charge
60 p/day
Solar
4.2 kWp
Battery
9.5 kWh
Indicative result
£412 / year
Estimated annual saving vs your current setup.
These results are indicative estimates only. Actual savings depend on your usage, tariff eligibility, export rates, system configuration and device compatibility.
Optimisation modes
Three ways to use Solful, designed to grow with your home
Adviser Mode
Solful gives recommendations but the customer stays in control.
Smart Schedule Mode
Suggested battery and tariff schedules based on price, solar forecast and household demand.
Flex Ready Mode
For eligible systems, help prepare the home for future flexibility or grid reward opportunities.
Automation and grid reward features depend on device compatibility, supplier terms and market availability.
For homeowners
Designed for people who want lower bills without becoming energy traders
Find the right tariff
Use more of your own solar
Charge your battery when energy is cheapest
Avoid expensive peak periods
Know when something is not performing
Understand whether adding solar or battery makes sense
For installers
Give customers a smarter post-install experience
Solful helps installers stay connected after installation, improve customer savings, monitor system performance and create future recurring revenue opportunities.
Customer optimisation dashboard
Tariff recommendation reports
Battery performance alerts
Lead management
Portfolio savings view
White-label potential
Flexibility revenue readiness
Compatibility
Works with the equipment and suppliers UK homes already use
Batteries
Inverters
EV chargers
Heat pumps
Smart meters
Energy suppliers
Tariffs
Installer systems
Compatibility examples are illustrative and do not imply official partnerships unless verified.
FAQs
Common questions
Ready to make your home energy work harder?
Free, no obligation. Two minutes is usually enough to see an indicative annual saving.