The use of fossil fuel is massively gaining attention due to the serious climatic changes it is bringing all over the world with high carbon emissions. Wind and solar are the best solutions for renewable energy. However, these two are not reliable as there are times when they are too low to match the supply with the demand created. The fluctuating power grid will need some storage to ensure that it has tackled this fluctuation.
The technologies to store such capacities of energy are limited as the most commonly used ones are batteries, which cannot store massive amounts. Dealing with this problem will need the creation of electricity storage technologies. These technologies work through saving the bumper power produced and then releasing it when the production has gone down. The only problem, however, is that they are expensive and in limited numbers.
Currently, the bigger number relies on hydropower, which is supplied through the use of hydroelectric dams. The need to have renewable energy is still rampant, especially with the current dramatic climatic changes. Storing the power produced through this process will be a tough thing and one which might even be impossible.
Countering the problem can be done easily through the use of a technology that has been in place for over ten years. Huge tests are currently underway in large pilot plans being made commercial. Its working involves turning produced electricity into heat through the use of large scale heat pumps. Once it has been changed, the heat is stored in large insulated tanks such as those containing water or gravel, which are also hot. Whenever it is needed, it will be converted into electricity through thermodynamic cycles. This technique is the same used to run car engines and thermal power plants.
This is a technology that has been in place and is known and used only that it has never been put into large scale use. It is a cheap but highly beneficial process in the saving of energy as the world turns to green energy. It will be a huge stride in cutting the supply of energy from coal, fossils, and natural gas, which are causing accumulation of carbon in the atmosphere. Additionally, the process is simple and very cheap. Most of the items used are readily available and inexpensive such as gravel.
The capacities used can easily be scaled up to meet the needs, thus balancing the supply and demand of energy. It is a storage system that nations should use to shift from nonrenewable energy sources to renewable ones. The components use last for a lifetime and are cheap. It hence will be the solution to store renewable energy for long periods considering the materials used are also long lasting.