Solar and Geothermal Energy: What’s the Difference?

When you’re planning on investing in renewable energy it’s important to know the differences between the various sources available. One of the most commonly asked questions is: “Which energy source should I go for: solar or geothermal?” The answer to this question is rather complex since both have their perks and drawbacks. But if you want to know more, keep reading.


The power of the sun is perhaps one of the most popular renewable sources. Thanks to the success of companies like Tesla and other innovative businesses, the cost of solar power has come plummeting down. This is great for anyone wanting to install a solar power system – the costs have become quite reasonable. The only downside to solar power is that it is dependent on weather conditions. If you live in a region where it gets constantly scorching hot, you’ll struggle to keep your housecool. This is why it’s important to look at other options as well.


The other renewable energy source which is gaining in popularity is geothermal. Just as its name suggests, geothermal energy is sourced from the ground. The primary difference between solar and geothermal energy is that while solar depends on the sun for its power, geothermal relies on the heat coming from deep within the Earth. This makes it more stable and less affected by weather conditions. The price of geothermal power is also relatively low compared to that of solar power. This makes it an even more attractive option for those wanting to invest in renewable energy. The only downside to this power source is that it requires a bit more upfront investment since you need to drill a well to extract the heat. Fortunately, the cost of drilling a well is generally covered by the energy firm since it’s considered a maintenance cost. In the end, though, it’s still a significant investment, and one which provides significant returns.

So, which one should you go for? It really depends on your specific needs and how much you want to invest. If you’re looking for low-cost electricity which is more stable and has less impacts on the environment, then geothermal is the clear answer. If, however, cost is no object to you and you just want to be able to power your home entirely using renewable energy sources, then solar might be the better option. It’s also worth noting that while the price of solar power has come plummeting down, the price of wind power has increased, making it somewhat more expensive overall. This, however, is a question of perspective since at least half of the cost of wind power goes to buying the turbines themselves. In any case, the bottom line is that both forms of renewable energy are great options for those wanting to reduce their carbon footprints and be more self-sufficient. We should all be looking to alternatives as well since the costs of wind and solar have come down significantly.

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