UK homeowner's 16kWh home battery falls short of 20 to 25kWh daily demand, prompting tariff debate
By Eve
A UK homeowner posted on Reddit that household demand of 20 to 25kWh a day exceeds their new 16kWh battery, which is paired with a 6kW inverter, and asked about tariffs that allow charging twice a day. On their EDF tariff the standing charge is 61.23p a day, electricity costs 30.16p per kWh outside the 11pm to 6am window and 6.66p per kWh within it. The Cool Down reported that other battery owners advised accepting that a battery offsets bills rather than cancelling them, adding capacity, or cutting base load.
Why it matters
The anecdote shows how far domestic users are shaping their energy use around cheap overnight rates, and how wide the gap is between off window and overnight pricing. For CPOs and procurement teams, it is a reminder that home storage sizing and time of use tariffs influence customer expectations of charging cost and flexibility, though this is a single user account rather than market data.
Source
- Original title
- “UK homeowner's new 16kWh battery falls short of daily demand, sparking debate over cheaper power”
- Published
- 4 November 2026
- Updated
- 5 November 2026
In this story
- Topic
- Grid & Energy
- Place
- United Kingdom
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