Practical tools for households, businesses, and energy professionals. All calculators use current UK rates and industry-standard methodologies.
Estimate your annual electricity and gas bill based on household size and usage, using current Ofgem price cap rates.
Compare energy tariffs and estimate how much you could save by switching from your current deal to a new one.
Calculate the payback period and return on investment for rooftop solar panels at your home, including export tariff income.
Compare the total annual running cost of an electric vehicle against a petrol or diesel equivalent, including charging costs.
Estimate your household's annual carbon footprint across energy, travel, and lifestyle, with tips on how to reduce it.
See how much you could save by shifting electricity use to cheaper off-peak hours with time-of-use or Agile-style tariffs.
Compute the Levelised Cost of Energy for wind, solar and battery storage projects using industry-standard CRF methodology.
Model annual revenue for a grid-scale battery from arbitrage, frequency response (FFR/DC), and capacity market participation.
Estimate annual generation, revenue and ROI for a utility-scale ground-mounted solar PV project in the UK.
Estimate annual generation, capacity factors and revenue for onshore or offshore wind projects based on turbine specifications.
Calculate the minimum Contract for Difference strike price needed for a UK renewable project at your target equity IRR.
Compare the NPV of a fixed-price Power Purchase Agreement against projected wholesale market sales over the contract term.
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All calculators are updated regularly to reflect current UK energy prices, Ofgem rates, and industry benchmarks. Professional calculators use the same methodologies applied by energy developers, project finance teams, and grid operators.