Wind Turbine vs Solar Power

Wind power and solar power are two of the most popular renewable energy sources that are being used as alternatives to fossil fuels. They play a significant role in reducing our dependence on non-renewable sources of energy. The equipment used to harness solar and wind power, are solar panels and wind turbines respectively. Solar panels contain photovoltaic cells that convert the sun's radiation into electricity.

Wind energy is a form of solar energy that is generated due to the difference in atmospheric pressure caused by the sun's radiation. The energy generated by the wind when it turns the turbine blades is converted into mechanical power by the generator. This mechanical power is then converted into electric power, which can be used to power residential and commercial sectors. Both wind and sunlight are domestic sources of energy which are sustainable, abundant and inexhaustible.

Advantages of wind power over solar power:

• Solar energy is not available during the night or under cloudy conditions, whereas wind energy can be harnessed 24/7.
• Wind power is considered more efficient than solar power, as wind turbines emit less CO2 into the atmosphere.
• A wind turbine produces only 4.64 grams of CO2 per kilowatt-hour (kWh), while a solar panel produces 70 grams of CO2 per kWh.
• Wind power consumes less energy and generates more energy compared to solar panels.

Which is more efficient?

Renewable energy can be generated from various natural sources, including solar and wind. However, the efficiency of converting this energy into electricity varies between the two. Solar panels can convert only 22% of the sunlight they receive into usable electrical energy, whereas wind turbines can convert up to 60% of the energy they harness into electricity.

Ultimately, in a country like South Africa that has sufficient wind in many areas, wind power may be the best solution for renewable energy. At Kestrel, we provide grid-connected solutions utilising the best of multiple energy sources to ensure a consistent and efficient energy supply. For more on our energy solutions, contact kestrel@eveready.co.za.