Solar panels are designed to attract the sun s rays and trap them.
Are solar panels more horizontal in winter.
It doesn t snow every day and most days my solar panels are clean.
So winter solar power is not an oxymoron.
A blue sky winter s day can see some amazing levels of power produced on an hourly basis compared with summer.
Cooler weather is the friend of solar as panels become more efficient in turning the sun s rays into electricity.
In the winter it s less likely for solar panels to reach their peak temperature.
Generally speaking solar panels are 20 c 36 f warmer than the ambient temperature.
The cold might actually help your solar panels produce more energy.
However the impact temperature has on solar panels.
Solar panels work well in the winter but you will typically see a dip in total energy production during particularly bad winters due to snow covering your panels and reducing their power output.
This is what that looks like.
The dark solar panels attract heat and help in melting the snow.
Here in buffalo an average day in winter is just grey.
They are also affected by cloud considerably more than solar pv so a cloudy winter day you should not expect your solar thermal to do much at all.
An average day of solar generation in winter.
One way to counteract winter production dips is to install your panels at a lower angle than your latitude.
Solar panels installed horizontally on a roof at the st george hotel in st george qld.
The sun rises at 8 am and sets at 4 pm.
If every day was like this i d get 120 kwh for the month which is pretty exactly what my 5 year.
Solar thermal is affected by the loss of direct sunlight a bit more than pv and realistically you should not expect too much from your solar thermal during winter.
Solar panels are most efficient when it s cold and sunny outside so they ll still be able to produce energy as long as you re not living in the arctic circle or somewhere else that gets very little sun in the winter.
Although at first blush it may seem that solar power is ideal for the summer solar panels actually produce useful power throughout all four seasons including when they re covered in snow.
So there s a bit of science behind solar panels but it s not totally daunting.
In the past panel manufacturers would not offer warranties on panels installed at an angle lower than 2 degrees but these days most of the top manufacturers will give warranties even if their panels are installed at 0 degrees completely flat.
So even a glimmer of sunlight can cause the solar panels to start warming up and hence hasten the melting of snow around it.
For more information about solar power during the winter months talk.
Thus the electron reactions occur at a greater rate.
Winter solar power is still viable.