Expert Says That By 2050 More Than Half of Electricity Generated in Brazil Will Be Solar and Free.

According to EPE, in 2050 it is possible that solar energy will be predominant in the country, boosting the use of a “free energy”.

According to the Electric Research Company, the cost and installation of a structure for generating free energy from solar power for stationary applications in Brazil is 1.5 billion MWh annually. The same applies to mobility, where it would be necessary to install 500 thousand MWp in solar energy for mobility to have free energy for the next 20 years. Unlike mobility-focused energy, which stores electricity in batteries, electricity for stationary applications does not have immediate storage.

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Aneel Highlights That Less Electricity Is Consumed Than Generated.

According to Aneel, out of every 100 MWh generated, only 83 MWh are consumed or billed against the system, with the remainder characterized as losses. Brazil falls into the group of countries with loss rates above 15%.

Thus, based on the premise that the country could achieve a loss rate similar to the US, which is 5%, we would have an additional 150 million MWh per year for storage or consumption, resulting in free energy from solar energy or other sources.

In 5 years, this would amount to about R$ 150 billion that could be redirected and amortized for investments. Besides the reduction of losses, increasing energy efficiency represents an easy way to obtain free energy without building additional power plants. The idea is to use less electricity to do the same amount of work.

20% Savings with Hydroelectric Plants.

In the ranking by ACEEE, Italy and Germany score 75.5 points out of a possible 100 points. In contrast, Brazil only reaches a score of 35 points. A collective effort that could bring the country an efficiency level similar to that of the US would represent an additional solar energy equivalent to 10%.

For this optimization work in the electricity network, the repowering of the 200 plants would allow for a 20% savings, amounting to 1.2 to 1.5 billion MWh per year consumed, with a consequent increase in free energy in our “battery”.

Of this total, about 40% is consumed daily and can be used synchronously during solar energy generation with an implementation cost of R$ 660 billion. Currently, Brazilian consumers already pay around R$ 100 billion annually for electricity. Thus, in 6 and a half years, it would be possible to amortize the investment.

How Would the 60% Be When There is No Solar Energy?

Considering the work to optimize the transmission system, 60% of the energy consumed in the country equals 720 million MWh annually. The average accumulated energy in hydroelectric reservoirs is approximately 520 million MWh per year.

The proposed optimization would provide more than enough energy storage to cover the 200 million MWh per year needed for the safe operation of the system.