Take back control of your energy bills.
These tools put you in control of your energy bills. No more waiting on hold, no more confusing letters from your supplier — just clear answers that help you make the right decisions for your home.
For your Energy Bills
Tariff Estimator
Appliance Cost Calculator
Compare your usage against 40+ UK tariffs and find the cheapest, greenest or best rated deal for your home in 2 minutes.
Find out exactly what each appliance in your home costs to run every day, month and year — and which ones are quietly draining your bills.
EPC Estimator
Grant Finder
Get an estimated EPC rating for your home in 2 minutes — without waiting for an assessor. Find out what's dragging your score down and get suggestions to improve your rating.
Answer 5 questions and find out exactly which free government grants you qualify for right now — and how to claim them.
For your Solar System
Whether you're thinking about going solar or already have panels on your roof — these free tools have you covered. Compare costs, check if your home qualifies, and if you're already generating, find out why your system isn't performing as it should. No jargon, no lead generation, just honest tools built for UK homeowners.
Solar Fault Finder
Coming soon......
Get a diagnosis in under a minute. The tool identifies the most likely cause, tells you exactly what to do next, and gives you the direct phone number for your inverter or battery manufacturer if you need to call.
A strict no-sales zone
We don't sell solar panels. We don't install heat pumps. We don't work for any energy supplier. If you find a better deal through our tools and decide to switch — great. If not — that's fine too. Our only job is to give you honest information so you can decide for yourself.
Common Questions
Are these tools really free?
How our tools work
Yes — completely free. No signup. No email required. No catches. We may earn a small commission if you switch supplier through one of our links, but this never influences our advice and you're never pushed to do anything.
We update our calculators weekly using official Ofgem price cap figures and real-world installation data from across the United Kingdom.
How accurate are the estimates?
Still have questions? Our structured courses offer deeper, step-by-step guidance on transitioning your home to green energy. Join our free skool community through our course page to access this.
Our tools are for guidance only. Results depend entirely on the information you enter — the more accurate your inputs, the more useful your results. Actual costs and savings vary based on your supplier, tariff, property and usage patterns. Always verify important decisions directly with your supplier or a qualified professional.