A timeline of solar energy

Photo by <a href=”https://unsplash.com/@wmmead?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Bill Mead</a> on <a href=”https://unsplash.com/s/photos/solar-panels?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>

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