Clearer Octopus Flux battery savings, including when export is zero

Battery quotes on Octopus Flux and other time-of-use tariffs model grid charging and evening arbitrage more closely to how those tariffs work, so typical-day charts and annual savings update when you save or rebuild the quote. When export income is zero, you still see headline savings and the monthly breakdown alongside the arbitrage table.

Improved

• Octopus Flux and time-of-use battery quotes — Grid charging is sized from cheap-rate half-hours (up to battery capacity). Stored energy is used for arbitrage discharge only when import would cost more than the cheap rate, including large batteries and Go overnight windows. Typical-day shapes and annual £ figures change the next time you save the quote or rebuild its insight.
• Savings overview with no export — Headline savings stat cards and the monthly breakdown table appear when export revenue is zero, for example minimal solar with no export.