According to The Next Web, Europe has high potential when it comes to wind power and solar power, among other forms of energy, but countries can only take full advantage of these if they can develop the required solutions to store it.

Some experts believe that battery-based systems aren't the only solution and we need to get more creative if we want to succeed.

Jacopo Tosoni, head of policy at the European Association for Storage and Energy, said that "if we don’t work out how to stabilise Europe’s electricity grids soon, we’ll come to regret it."

Polar Night Energy is a Finnish company that plans 100MW units that use sand to store power.

GroeneWarmte is a Netherlands-based company that uses nearly boiling water instead of sand at temperatures of up to 95 degrees Celsius in order to store energy.

Highview Power is another company that plans to build a 50MW energy storage facility in England, which will use liquid air as the energy storage source and company officials say that "we filter it so effectively it is clean air, that air is liquefied, and then we cryogenically freeze it."

The site should come online sometime in 2024 and Highview Power plans another 19 such units, which should be able to supply 4 GW of power for UK.

Gravitricity is another company based in England which aims to use the power of weights in order to store power.

Company officials say that a single weight is capable of generating 4 to 8 MW of power and it can be optimized to deliver that amount of energy quickly or slowly, up to an hour.

Compared to lithium-ion batteries, the system is less cost-effective per megawatt, but where it shines is in durability, as it has a much longer cycle count before it needs a replacement of a revision, compared to the said batteries.

Because the shafts in which the weights sit operate based on pressure, this system is also able to theoretically store hydrogen, although implementing this solution requires additional funding and research.