Well, we all have heard about solar energy. But what is it, how is it used, and why is it relevant to use nowadays?
In simple words, it is the radiant energy emitted by the sun. In our childhood, we all have done the magnifying glass trick to burn the paper using the sun’s light. Apparently, this has been the history of solar energy, humans, as early as 7th century B.C., used this trick to light the fire (of course, not magnifying glass but similar materials). Since then we all have been using solar power for various purposes.
Because of the technological advances, solar cells happened, and then later solar panels were developed. There has been a constant debate about who invented the solar panel, but all that matters is that this boon was finally brought into the world after a number of contributions by multiple scientists.
Now comes the question of why it becomes important for us to use solar energy? After all, what’s wrong with the traditional resources of energy which have been there for ages and we all have been using? This question has been there for now around the past 30 years. Well, there’s nothing wrong with them. It’s just that now they are guests for a limited time period, after which they’ll be just present in history books. Bluntly, they are non-renewable resources, be it wood, or crude oil, or natural gas. As the population continues to grow day by day, they are soon going to exhaust with their increased use.
Not only this but non-renewable energy resources when burned also produce harmful carbon emissions which have contributed severely to global warming. They damage the environment and decrease the lifetime of everything, including human lives. Here come the renewable resources to save our lives, solar energy, hydel energy, tidal energy, wind energy, etc.
Now why solar energy becomes the prime resource? The electricity which we use these days is generated through hydel power, which uses freshwater. But this usable freshwater comprises of only 1.2% of earth’s surface and being exhausted daily. This leaves us to look for alternative sources, among which currently only solar energy is the cheapest and most sustainable, rest all are either way too expensive as they are hard to generate or still in the development phase.
When it comes to how much you can save from solar energy, it needs to be calculated on a long-term basis. Solar investments are not going to give you returns in 2-3 months but they’ll show results when calculated for at least 2-5 years. So while planning to go for solar, calculate your returns on investments (ROI) for at least 2 years.
And, apart from this, an amazing attractive add-on is that they offer a minimum system life of at least 25 years. That simply means you need not worry about your electricity expenses anymore for the next 25 years and just concentrate on the savings they are going to offer.
Solar energy usage has rapidly increased by 20% for the past 15 years. This is all because of its efficiency and falling prices. What else can motivate someone to use when it saves money as well as your life? In a nutshell, there cannot be a better time to use it but now.