This particular installation was a retrofit to an existing 4Kw Solar system on a South East facing roof in Leicester. The Powerwall was installed onto a garage wall close to the existing SolarEdge inverter which was on the wall opposite.
The picture below displays the Tesla Powerwall, Inverter along with the SolarEdge StorEdge Interface. As the name suggests, the interface is the communications and wiring link between the battery and inverter.
This system has been up and running for several days now, below is a screenshot of a typical weeks usage broken down into solar production (Green), consumption (Red) and self consumption (Blue). Self consumption is the combined consumption of electricity from the battery and solar panels, consumption is when electricity is being imported from the grid.
Electricity is only imported when the home uses more than the 3500 watts of supply available from the battery, if the battery has been fully discharged or for a brief moment when the battery if changing from charging to discharging.
It is startling to see how little electricity is being imported, 93% of the home's electricity is being supplied by the panels and supplemented by battery storage in evenings and poor generation periods. This equates to the customer spending less than 90p on electricity for a week.
Obviously this is only a snapshot of one week for one customer's usage but the results are compelling.
CTS Renewables Ltd are one of the few installers accredited to install the Tesla Powerwall, which is now compatable with SMA inverters alongside Solaredge. We also supply and install similar battery storage systems manufactured by LG and Samsung.
Thank you for taking the time to read our newsletter, more information on our products and services can found on our website www.ctsrenewables.co.uk or you can call our office on 01623 422254.
Kind Regards
Matthew Baxter
Sales & Marketing Directo
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