Solarwatt MyReserve Battery Storage System

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The Solarwatt MyReserve Battery Storage System is the simplest way to retrofit battery storage into an existing solar PV system and simply fits between the PV panels and the solar inverter.


  • Great retrofit solution for almost any PV system
  • Suitable for all sorts of system sizes
  • Li-Ion battery
  • 4.4kWh - 8.8kWh
  • DC coupled
  • Easy to install

The Solarwatt AC-Sensor energy meter monitors how much energy is being consumed or whether there is any excess going back into the grid. With this information it can intelligently instruct the MyReserve to store surplus generation or use the batteries to reduce consumption from the grid. All this means the owner of the solar PV system/property can save on electricity bills and maximise their ROI (return on investment).

Additional cost to end user from ~ £5,000 + Vat compared to normal PV system)


Solar Panels for renewable generation. REC Peak Energy Series Silver Frame
Solar inverter to connect the solar photovoltaic (PV) panels to the household distribution and the grid. SMA Sunny Boy 1.5 2.5
Solarwatt MyReserve battery to store surplus generation for later use Solarwatt MyReserve Front 
Solarwatt Energy Manager Pro to monitor and control the system. Data is also transmitted to Solarwatt's Energy Portal for monitoring via a browser or App giving you information on the distribution of energy. Solarwatt Energy Manager
Solarwatt AC-Sensor 63 to measure export/import so the system knows when to charge/discharge the battery in order to increase self-sufficiency.