Heat Pump, Solar and Powerwall 3, Hemel Hempstead
A Samsung 12kW high temperature heat pump, 19 solar panels making 8.65kWp, and a Tesla Powerwall 3 storing 13.5kWh.
- Solar19 Jinko panels, 8.65kWp
- ControlsHive wireless thermostat
- Postcode areaHP1
Heat pump, solar and a Powerwall 3 in Hemel Hempstead
We installed a Samsung 12kW high temperature heat pump, an 8.65kWp solar system of 19 Jinko panels and a Tesla Powerwall 3 at a house in Hemel Hempstead HP1. The Powerwall stores 13.5kWh through its built-in 11.04kW hybrid inverter and keeps power available during a grid outage. Hot water comes from a 300-litre Tempest unvented cylinder with a 50-litre buffer. The solar part of the installation qualifies for 0% VAT.
The heat pump and the battery are on the same elevation, so the pump can run on stored solar generation through the evening instead of on the most expensive electricity of the day.
The Powerwall 3 has an 11.04kW hybrid inverter built in and a round-trip efficiency of 97.5%, so the panels charge it directly with very little lost on the way.
The job in short
- Where: Hemel Hempstead HP1, Hertfordshire
- Heat pump: Samsung 12kW high temperature, R290
- Hot water: Tempest 300-litre unvented cylinder, 50-litre buffer
- Solar: 19 Jinko panels, 8.65kWp
- Battery: Tesla Powerwall 3, 13.5kWh, built-in 11.04kW inverter
- Controls: Hive wireless thermostat
- Warranty: 10 years on the Powerwall
Photos from the job
Thinking about a heat pump in Hemel Hempstead?
We measure every room, calculate the heat loss, check the radiators and the space for a cylinder, and send a written price with the grant already taken off. No cost and no obligation.
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