Ofgem price cap and time-of-use tariff tools
Compare flat, Agile, Go and Cosy tariffs against the quarterly Ofgem cap — and see how tariff choice compounds over 10 years.
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Solar Panel Savings Calculator UK
Estimate your solar panel payback, 25-year savings and export income by UK postcode. Uses JRC PVGIS satellite data.
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EV Home Charging Cost Calculator UK
Work out the real cost of charging your electric car at home vs public chargers, across UK time-of-use tariffs (Octopus Go, Intelligent Octopus, OVO Drive Anytime, E.ON Next Drive), and compare with petrol at today's prices.
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Octopus Agile Savings Calculator UK
Estimate how much you'd save — or lose — switching to Octopus Agile from a flat tariff, by DNO region. Models load shifting, EV charging and heat pump usage against a typical Agile hourly rate curve.
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Ofgem Price Cap Impact Calculator UK
See what the new Ofgem default-tariff price cap means for your annual and monthly energy bill. Updated every quarter — compare the current cap against the one it replaced for your electricity and gas use.