The mother of all energy
Electricity produced from solar yields no emissions, no greenhouse gases, and no fossil fuels, but it does require a certain amount of energy to make the solar panels. Luckily, the energy they produce far exceeds what it takes to
If the earth is our home, we owe a lot to solar energy. Just to offer some perspective, solar radiation is the key element of chlorophyll photosynthesis which kickstarts the basis for life for most creatures that inhabit the planet. Solar radiation is also the origin of winds, tides and fossil fuels: the sun is the primary engine of almost all forms of energy on our planet.
Over the centuries, humankind leveraged the strong connection linking plant life and the sun, especially to learn how to manage the lifecycle of plants to transform them in edible crops. As technological progress plowed on, by the end of the nineteenth century it allowed to transform the sun’s energy in electricity through the solar cell: a device that leverages the physics phenomenon known as the photovoltaic effect.
Today, after nearly 150 years since the onset of the first photovoltaic cell, solar energy is the fastest growing renewable energy source (+24% yearly, according to the 2019 IRENA report) and its technological development follows through, delivering ever more efficient solar power plants. The global threshold of 1.000 GW-worth of installed capacity is ready to be reached and surpassed, with Asia leading the global growth trend. Hence, the sun will keep on shining and guiding the unstoppable rise of green energy.