Solar energy has now become one of the cheapest renewable energy sources. Many countries in Europe solar energy investments are already reimbursed without support. Thus, increasing the security of supply and contributing in the peak demand of the system. Experts agree that in could be the cheapest energy source including nuclear energy in the next couple of years. In the UK which has much less favorable natural conditions compared to our country, by July 2015, solar capacities reached 6.5 GW. This exceeds the capacity of Paks I but also the combined capacity of Paks I and II. In Hungary, capacities hardly reach 100 MW, including the newly installed 15 MW system of the Mátra Power Plant.

In Hungary, the KÁT system helps to generate electricity from renewable sources. This is 32.14 HUF per kilowatt hour. When we check out an average electricity bill of a municipality, we can find out that the institutional tariff what needs to be paid to the DSO is 21 HUF per kilowatt hour without tax. Plus, the traffic related system usage fees and the cash-type fees. These together usually exceed the price level of KÁT support. The technically and financially well-prepared solar energy investments are already returning on a price of 32 HUF. The expected increase in electricity prices will make solar power plants remunerative in the near future, already providing higher returns than bank interest rates.