According to industry media reports, as of noon on July 19, the total power generation of photovoltaic systems operating in the UK reached a peak of 7.77GW, making it the largest nuclear power plant in the UK (the Heysham 2 nuclear power plant with an installed capacity of 1.36GW in Lancashire) ) six times the amount of electricity generated.
On 19 July, PV systems provided around 66.9GW of electricity, or 8.6% of the UK's total electricity demand. In the past seven days, solar systems have provided about 9% of the country's electricity.
Chris Hewett, CEO of Solar Energy UK, said: “The planet is undergoing climate change, it is happening. We still have ten years to accelerate the development of the renewable energy industry. The good news now is that photovoltaics and wind power It is the most cost-effective way to generate electricity in the UK. We have a solution to the energy security crisis.”
The power generation efficiency of solar panel will be reduced by the impact of high temperature, but the impact is not large. According to research, the UK solar system has the highest power generation efficiency at around 25 °C, and on this basis, for every 1 °C increase, the efficiency will decrease by about 0.5%.
Newer solar panel have improved performance, reducing efficiency by only 0.35% for every 1°C increase, according to the manufacturer. PV module temperature depends on a combination of ambient temperature, radiant heating from the sun, and air cooling effects. Therefore, to reduce the efficiency of solar panel by 20%, it needs to reach 65 °C.
Solar Energy UK claims that rising temperatures caused by climate change will not endanger the UK's booming photovoltaic industry at all.
Hewett added, “Solar systems are a little more efficient at generating electricity in the spring, but basically, if there is more light, more electricity is produced. It must be remembered that photovoltaic systems can be deployed and Use. We use photovoltaic technology on rooftops the same way we deploy photovoltaic farms in deserts.”
Solar Energy UK emphasises that PV systems are not unique in being affected by high temperatures, with fossil fuel power generation facilities and nuclear power plants also reducing power generation efficiency during heat waves.