System layout

Typical solar system for hot water with twin coil cylinder and conventional boiler

The most common solar system layout uses a twin coil cylinder which is fed by both a boiler (or other heat source) and the solar panels. The solar system and the regular heating system do not come into direct contact with each other and the only shared part is the cylinder.

The solar system has its own pump, expansion vessel, pressure relief valve, air vent and controller.

• Greenskies FKC-1S Solar Panel 95 ± 2 %
• Greenskies FKC-1W Solar Panel 95 ± 2 %
• Greenskies FKT-1S Solar Panel 95 ± 2 %
• Greenskies FKT-1W Solar Panel 95 ± 2 %

Energy Summary

This data is taken directly from the M family's house on a weekly basis.

Please note that payback periods for solar panels are significantly dependent on usage and energy suppliers. Worcester, Bosch Group estimates that the Greenskies solar panels can provide 50 per cent to 70  per cent of your hot water usage.

Solar energy input	3.6 kWh	Energy provided by the solar panels to the hot water tank, which would otherwise have been supplied by the gas boiler.
Boiler energy input	0 kWh	Energy from gas used by the boiler to heat the hot water tank. This energy is used by the boiler to supplement energy from the solar panels.
Percentage of solar energy input	100 %	This shows the percentage of energy supplied by the solar panels to the hot water tank.
Solar energy time	6.2 hours per day	The average amount of time the panels have been supplying energy to the hot water tank each day.