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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.
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Solar-powered ice factory in the Amazon that eliminated a 5-hour trip to Manaus, prevents the loss of up to two-thirds of the fish, and now ensures income for more than 30 riverside families.
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Every time a river flows into the sea, an amount of energy equivalent to a 120-meter waterfall is silently wasted, but Japan has just inaugurated the world’s first power plant that captures this waste and transforms it into electricity 24 hours a day without sun, wind, or fuel.
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Silicon Valley bets on a 100-hour battery that uses carbon and oxygen to store renewable energy for days and could turn a little-known chemical system into an alternative to critical metal batteries to tackle prolonged blackouts.
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Fortescue announces a radical shift by replacing diesel with a system featuring 1.2 GW of solar energy, 600 MW of wind energy, and up to 5 GWh in batteries, a giant project that could save $100 million per year and transform heavy mining into one of the largest 100% renewable operations in the world by 2028.
In 5 years, this would amount to about R$ 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.
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