Free-E Overview - How It Works - Dimplex Free-E User Manual

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Free-E Overview - How it Works

When PV panels generate electricity, the production is initially consumed by electrical appliances or devices
in the household that are creating a demand for energy. If the household does not consume all of the energy
produced by the PV panels, the surplus energy will be sent to the grid.
The Free-E uses this surplus photovoltaic energy instead to heat the water in a household water tank, and
therefore prevent this energy from going to waste. The Free-E can divert up to 95% of unused (otherwise
exported) solar PV electricity to an electrical water heating device. This maximises the consumption of self-
generated solar power and minimises the cost of buying energy for domestic hot water. It can be retrospectively
fitted to homes already with solar PV and a hot water cylinder.
A B
Dimplex
R
Millbrook House, Grange Drive, Hedge End, Southampton SO30 2DF
E
C
D
G
Position Description
PV Panels
A
Inverter
B
PV Solar Electricity Meter
C
Distribution Box
D
Free-E
E
Domestic Hot Water Cylinder
F
Free-E Meter and CT Clamp(s)
G
Import / Export Electricity Meter
H
Grid
I
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F
H I
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