Wind Geothermal and Solar Power Generation Overview

Can geothermal energy be compared with solar and wind energy?

However, it is extremely difficult to assess the resource of geothermal energy accurately and reliably if comparing with solar and wind energies. The main reason is that geothermal energy depends on the temperature of geothermal formations and is stored underground as deep as thousands of meters.

What are the resources of solar PV & wind & geothermal energy?

It is known that the resources of solar PV, wind and geothermal energies (SWGE) depend on the surface radiation from the sun, wind speed above the ground, and heat flow rate related to the temperature of geothermal reservoirs in deep, individually.

What is geothermal energy used for?

Geothermal energy has two types of utilizations: direct use and power (electricity) generation. Direct use includes space heating (for example, greenhouse heating, snow melting, plant and food heating), cooling, and other applications using low enthalpy geothermal energy.

What are the disadvantages of geothermal energy?

The data of coal and gas power systems were used for reference and convenience to make the comparison. The cost of geothermal energy is very close to wind energy but much less than PV. Compared with wind and PV, the main disadvantages of geothermal energy may be the long payback time and the construction period (Tc).

What is the contribution of geothermal power (GP)?

Unfortunately, the contribution of geothermal power (GP) is very small. It is known that geothermal energy has many advantages over solar and wind systems.

How much geothermal energy is produced in 2022?

For instance, from 2010 to 2022, the global installed geothermal capacity grew from approximately 11 gigawatts (GW) to over 14 GW, representing a growth rate of around 27 % over the period [119, 69]. Fig. 45 show the geothermal energy production for the countries has heigh production. Fig. 45. Geothermal energy production by country .