Tariff mechanics
Battery hardware hasn't changed as dramatically in the last few years as the case for buying one has. The real shift has been in how electricity is priced.
See it on a real page
Try the live calculator embedded exactly as your customers would see it.
View the demo →Batteries were traditionally sold mainly alongside solar, to store daytime generation for evening use — a real but comparatively modest saving, dependent entirely on how much solar a household already had.
Time-of-use tariffs like Octopus Agile create a large, genuine price gap between cheap and expensive half-hours every single day — a battery can exploit that gap regardless of whether the household has solar at all, which meaningfully widens the addressable market beyond existing solar customers.
A battery-only quote no longer has to lean on a hypothetical future solar installation to make sense — the tariff arbitrage case stands on its own, which is a genuinely different (and often easier) sale than the traditional solar-attach pitch.
Not less relevant — just no longer the only reason a battery makes sense on its own, which opens the pitch to a wider set of customers.
No, the gap varies by tariff and by day — which is why a live, current estimate is more accurate than a generic industry claim.