From September 2015 to February 2016 Spirit installed and commissioned Solar PV systems for 20 buildings spread out over Andover College, and Sparsholt College near Winchester. The arrays ranged from 32 to 400 panels on each roof. These all contributed to a total of over 2,500 BenQ 250W and BenQ 260W panels.
The system was funded by GreenNation, so they have paid the full costs of installation. They benefit from the Feed-In tariff and Export tariff payments, and sell the electricity to Sparsholt and Andover College at a reduced rate. Sparsholt and Andover College benefit from the cheap electricity.
The system was preaccredited so all systems could benefit from the higher 2015 Feed-In Tariff rate.
Heat Pump: 5kW Mitsubishi Ecodan
Cylinder: 180L Mitsubishi KS
In October 2015, Spirit Solar Ltd installed a 5 kW air source heat pump for Mr D in Wallingford, Oxfordshire.
The heat pump was designed to provide all of the space heating and hot water requirements of the property with lower running costs than conventional heating systems and no local exhaust fumes. If the electricity required to run the pump comes from a fuel-free renewable source (e.g. solar PV or wind power) then there will be zero running costs and zero CO2 emissions.
It is estimated that Mr D will save £283 per year in bills compared with a gas boiler (even more compared to an electric heater), while receiving an income of £407 per year from the Domestic Renewable Heat Incentive.
In May 2016, Spirit commissioned a 6.4 kWh LG Chem lithium ion battery, with a Solax Hybrid inverter/charger to complement the 4 kWp of solar panels installed on the roof.
With a battery, the annual usage supplied by solar to the property is expected to be around 78%, delivering greatly increased electricity savings.
We are proud to have been at the forefront in getting the DNO (distribution network operator – SSE) to adapt to a new way of thinking and approve the safety of our product before they are installed in homes across the UK . Unlike Solar PV there is no regulatory body to protect consumers, some companies haven’t even bothered to contact the grid – which could prove costly for the home-owner left with a product not fit for purpose.
This represents a step towards de-centralised power in the form of micro generation and power storage will become the future for home owners at a time when grid independence is to become an advantage.