We interpret the data to mean you don't need excessive separation to prevent fire spread — which is good news if land is limited or if you want to pack more megawatt-hour per acre — but you also shouldn't eliminate spacing entirely because of practical response needs.
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In real-world conditions, solar panels typically operate 20-40°C above ambient air temperature, meaning a 30°C (86°F) day can result in panel temperatures reaching 50-70°C (122-158°F).
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Since solar panels reflect heat produced by the sun, you can expect solar panels to reduce the heat absorption of your roof by up to 38%, resulting in a 5-degree temperature drop versus homes without solar panels.
[PDF Version]
In real-world conditions, solar panels typically operate 20-40°C above ambient air temperature, meaning a 30°C (86°F) day can result in panel temperatures reaching 50-70°C (122-158°F).
[PDF Version]
