Solar Panels For Homes

In terms of net energy gain, are biofuels more efficient than photovoltaics?

Take into account energy cost of manufacture and transport for both i.e.:
- Manufacture of photovoltaic cells
- Fertiliser
- Harvesting and refining
- Cables

Nothing has energy gain, per se. Biofuels and photovoltaics both have energy output, but it is always less than the energy input.

A Solar array is expensive, but produces almost free power, but only when the sun is shining on the array. And that can vary depending on geography and weather.

Biofuels get their energy from the sun, but indirectly. They are very expensive to make, and usually diminish the world’s food supply.

SilexSolar PV Solar Module Manufacturing Robot

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