Solar radiation

The solar energy calculator calculates the radiated energy based on the latitude and longitude to animate the solar energy for the current location of your project. The calculator computes the solar position and radiation to the Earth every two hours throughout the year and provides you the exact amount of solar energy. Month after month, you can see the solar energy contribution. In addition to the solar radiation it is of significance to add the number of solar hours for each month at the location you want to calculate. Solar radiation and the number of solar hours will determine how much solar energy you can utilize.

Yearly amount of energy

Along with the number of solar hours, the radiated energy constitutes the most important prerequisite for utilizing the solar heat. You can see how much energy you can expect to save and the months that make you self-sufficient with energy from the our flat solar collector. The calculator computes the utilization and overall energy consumption as well as the effect of the solar radiant heat during the year. You'll also be able to see when you have an energy surplus, if any, that you can exploit.

Your own energy demand

Based on empirical data from the largest energy suppliers, you can calculate your energy demands. This will be crucial for the type of solar thermal energy systems you should acquire and how much solar energy you may expect. The calculator computes the energy consumption based on outdoor temperatures, indoor temperatures, cooling and optional water heating for a swimming pool.

Size of the solar collectors

The size of the solar collectors are depending on your energy needs and the solar radiation. The solar energy calculator computes the size that is optimal for you as well as the associated equipment. You can calculate the size that provides you the lowest price / kWh as well as the size that provides the best overall economy.

Total investment

The solar thermal energy calculator computes an estimated cost of complete solar thermal energy systems in relation to your energy needs and the size of the solar collectors. The cost is based on known factors in the market. With the cost model, you can substract any public funding, so you can calculate the real economic benefits of our solar thermal system. The cost model is instructive.

Financing and returns

The returns of your solar thermal system is computed based on the investment and utilization of solar energy. The solar energy calculator computes depreciation and returns during 15 years, allowing you to compare your costs with the energy costs you have today. With the calculator you can enter the current energy price and interest rate and thus calculate the expected payback period and energy price over the next 15 years. If you compare with the current energy prices, you can expect a pay off on the entire investment in less than 5 years.