This is the technology that will put a modern home or business as close as is possible to being ‘non-reliant ’ on grid energy.
Our Duracell system can inject an AC load 5,000 Watts (5 kW) at any one time and is used automatically to top any short fall in energy from the solar panel system when the house demand for energy exceeds what the solar panels are producing.
A correctly specified battery storage system is a total must for ALL Solar PV system owners.
The Duracell battery we use has a ‘C1’ Charge rate. This means it can charge AND discharge at its rated storage capacity. A 5 kW Duracell battery can charge and discharge at 5 kW.
Many other makes of battery can only charge at HALF their C rating.
This is why they are often cheaper to buy but its false economy as you are buying a battery that can only do half of what the Duracell can do.
The Duracell battery we use also has a very long warranty and is fantastically reliable, just as you would expect from one of the worlds leading battery manufacturers. Duracell.
EG: The solar PV system is producing 2.3 kW and the house electrical load is suddenly 4.3 kW because the washing machine has been turned on. In normal situations the 2 kW of electricity that are required to fully power the home would be purchased from your supplier. With our Solis high-tech hybrid inverter installed, the batteries are instantly called upon to discharge the required electricity so that none is purchased from the supplier. They will continue to inject electricity to compensate for the solar panels until the house load is reduced.
Battery storage systems are installed on most new solar panel systems as the return on investment is significant with escalating energy costs.
The good news is that a battery storage systems can be retrofitted to most types of existing solar PV systems too!
Your Solar PV system is generating more electricity than you are using because you are not at home.
The surplus energy is flowing into the Grid, at best you will be getting a small payment per kWh under a Smart Export Guarantee (SEG) or Feed in Tariff (FIT).
Once your battery storage system is installed you will harvest any excess solar energy up to the point your battery is fully charged.
The Batteries are used to store DC power, they are totally compatible.
When the monitoring unit detects that there is no longer sufficient power being produced by the Solar Panels it calls on the batteries. This can be when its getting dark or when the demand load is more than the solar panels are producing.
The batteries re-inject the stored DC power within 0.2 of a second – back through the inverter and you are up and running again using your own stored electricity instead of buying any.
The system is designed to prevent as much electricity being purchased as possible and it is a simple concept and extremely effective.
The system we use is modular in design which means you can start with a small battery (typically 5 kW) and add more modules (Batteries) if your demand for energy storage increases. You may add an electric or hybrid vehicle in the future so it is reassuring that it is a very simple process to add more modules.
The battery storage system is fully integrated with the APP so that you can monitor what the charging situation is at home from your phone, tablet or computer. We set this up for you and provide a ‘real time’ demonstration as part of the commissioning process.
Every customer enjoys this part of the installation because they actually see their system doing what we have promised it will.
A. Lloyd Electrical & Solar Limited, 39 Pastoral Way Sketty, Swansea, SA2 9LY.
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Company accounts: Stephen Kent & Company Chartered Accountants, Swansea.
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