Emissions, low running costs, local production and high security of supply

bioenergy, followed by wind, solar and geothermal energy. Clean energy is a Danish passion, and in Denmark 30 percent of all energy used already comes from renewable sources More than two-thirds of Denmark’s renewable energy comes from bioenergy, which is energy stored in organic material or biomass.

Agriculture is big business in Denmark, and it indirectly helps provide energy too, with manure, animal fats, and straw used as the basis for biogas and liquid biofuels. Solar power is another renewable energy source in Denmark. Solar panels are used to heat up buildings and produce district heating, and solar cells are used to produce electricity. Geothermal energy is a renewable energy source with vast potential. It carries the benefits of low CO₂ emissions, low running costs, local production and high security of supply.   Geothermal energy must play a far greater role in the future of green district heating. Geothermal energy currently accounts for only 0.1 percent of the total Danish renewable energy

Although geothermal energy takes only 0.1% of Danish total renewable energy, in the future its usage is expected to increase taking into account it benefits like low running costs, higher energy security and low CO₂ emissions.

The most significant obstacle to solar cells is the cost of batteries. The current goal of companies working on solar cells is to decrease the cost of batteries by up to 50 cents, because if this can be accomplished, solar companies can be competitive with gas and electricity companies.

Another problem of electricity generated from solar energy is that there is no solution yet for its storage so that it can be used in the cold weather and at night.

According to the Government of Brazil, renewable energy sources account for 83% of Brazil's electricity matrix. The most used is hydroelectric (63,8%), wind (9,3%), biomass, and biogas (8,9%), solar (1,4%).

82% of Brazil’s electricity is generated from renewable energy sources, the mostly utilized is hydroelectric power (62,7%) , wind(9,5%) ,biomass(8,7%) and solar energy(1,9%).

Despite negative effects of Covid-19 in the Brazilian economy, investment on solar energy has increased.

Despite the slowdown in the economy due to the COVID-19 pandemic, solar energy has grown in Brazil. In the third quarter of 2020, the use of this source advanced 25% compared to the same period in 2019, according to data from the National Electric Energy Agency (ANEEL). Globally, IRENA predicts that solar energy will grow on average by 13% per year from 2020 to 2030.

Thus, the installed capacity of solar energy in Brazil increased from 415MW in the third quarter of 2019 to 520MW in the same period of this year. The state of Minas Gerais was at the top of the installed power ranking, followed by São Paulo.

Brazil has the fifth greatest solar energy potential of all countries in the world, as it receives excellent levels of sunshine throughout the year, from less sunny areas in the South to the sunniest in the Northeast. This quality generates a capacity factor of 19% to 24%, which is 2x higher than the average in Germany, one of the current world leaders in the use of photovoltaic energy.