30 kWh HOME SYSTEMSee what your
home battery saves.
Explore a 30 kWh Anker SOLIX setup and estimate the payback on your own system.
Calculate my payback ↓
Connected system readings
Waiting for Home Assistant readings
BATTERY CHARGE—
SOLAR POWER—
SOLCAST TODAY—
SOLCAST TOMORROW—
30 kWh SOLIX · sample history
BATTERY SAVINGSOff-peak charging example
SOLAR GENERATED
BATTERY DISCHARGED
BATTERY CHARGE · SAMPLE78%
Energy history
● Solar generation ● Battery discharge kWh
Example power flow
Solar 390 W
Home 350 W
Grid export 40 W
Battery Idle
Calculate your battery payback
Estimate what shifting grid electricity from peak to off-peak could save.
Simple payback divides the installed cost by estimated annual savings. This model assumes grid charging and excludes solar, export income, financing and battery degradation.
Behind the dashboard
30 kWh storage · 5 kW AC
2 × Anker SOLIX Solarbank 4 E5000 Pro, 4 × BP5000 expansion batteries and a Smart Meter Gen 2. Battery hardware and fitting: £9,094 estimated.
2.40 kWp solar
5 × AIKO Neostar 3S+ 480 W. Panels delivered £695.88, plus about £250 in solar installation materials. Solcast forecasts appear in the connected readings above.
£10,039.88 home system
Includes £1,299 per BP5000 and £500 for battery fitting. Enter actual cost in the calculator to model payback.
January 2027 addition: two Daikin Stylish 3.5 kW heat pumps, £4,400 fitted, tracked separately. Portable kit: Anker S2000 and PS200, separate from home payback.
Compare electricity tariffs
EDF Go Electric 12m v2: 6.66p/kWh 23:00–06:00, 30.39p otherwise, 51.05p/day. Fixed until immediately before 22 September 2027. Listed exit fee £75. Fuse Energy previous flat tariff: 21.42p/kWh and 44.65p/day.
Enter annual kWh split by the EDF cheap window. The proposed tariff comparison assumes the same window and the same import and export volumes.
Is 5 kW enough?
Compare inverter sizes using illustrative events. Each sample assumes the inverter was at its 5 kW ceiling, grid import covered the remaining load and there was usable battery charge. Extra output is bounded by the usable battery energy entered for each event.
Estimates assume each eligible event occurs at EDF peak rates and extra energy can be recharged off-peak. Real upgrade value depends on measured events, battery headroom and the fitted upgrade cost.