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The Solar Trade Association (STA) has released a new report detailing
how mass adoption of residential solar, storage and smart controls
could completely remove the evening peak.
The report has been produced in collaboration with Loughborough
University and Advanced Further Energy, and looks into the consumer and
grid benefits of four generations of smart home, scaled up across a 4.4
million home portfolio, a number the report said was consistent with the
level of deployment that could be needed by 2035 to achieve net zero.
The majority of its key findings centered around 'Generation 3'
homes, which it defined as those with solar PV, battery storage and
intelligent controls. Conversely, 'Generation 1' are those with solar
only, 'Generation 2' solar and storage and 'Generation 4' those with
energy efficiency measures, electrified heating and electric vehicles
(EVs) installed alongside the previously mentioned technologies.
It found that 'Generation 3' homes could reduce their peak time
consumption by 97% annually, with 4.4 million of these homes completely
eliminating the evening peak on a typical winter’s day regardless of
whether a 6kWh, 10kWh or 20kWh battery is used by the household. This
consistently enables around 3GW of peak shaving at the times of highest
grid stress, the report said.
My solar panels lose 10% of efficiency (less than the typical round trip of battery storage) because they are optimised to generate power at the time of day when it is most valuable. This is achieved with no extra environmental footprint such as is incurred by producing battery cells.What is this magic?A West facing roof.
A West facing roof.
News on flywheels to stabilise the grid. Though it does say the first of its kind, when I seem to recall something in the news many years ago about one, also in the UK, perhaps on a GB to Ireland link. I think it was 20kWh, but could absorb/deliver the energy very quickly to help maintain frequency. But I digress.
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