Just over 20 years ago, it was rare to have a mobile phone in Brazil. Expensive handsets and lack of lines made it difficult to buy. Mobile phones were real “bricks”, with large batteries that lasted a short time and only had the basic function of talking.
People got used to it and just having a cell phone meant a big improvement over landlines. But cell phones have evolved rapidly. Today, his large screens allow him to perform a range of tasks.
The high-speed connection makes it easy to make video calls, watch content, work, talk to someone on the other side of the world, and more. Who can imagine going back to the early 2000s without a cell phone?
As with phones, the same is true for many other devices such as cars, appliances, lights, etc. Humans consume much more energy. We have become more ‘pampered’.
Once a person gets used to something that makes life easier, it’s very hard to let go and go back. Our demand for energy, especially electricity, is only increasing.
An example of high electricity consumption: cryptocurrencies, such as bitcoin, among others. The transaction process, the transfers and all the security steps they involve require very advanced computers, with high information processing power, voracious consumers of energy.
And we are heading towards a future with more and more digital money. Another example is cars. The global fleet is moving towards electrification, abandoning vehicles running on fossil fuels, which pollute the environment and warm the planet.
In search of solutions
As we consume more energy, we are also beginning to use more renewable sources, such as solar, wind, and hydroelectric power. But renewable energies make us wait for nature’s time. We can only convert energy when this resource is available.
In the case of solar energy, which is more predictable, production takes place during the day, peaking at times of greatest incidence of the sun. Wind energy, for example, depends on the presence of winds. And the hydroelectric plant depends on a fair amount of rainfall.
Brazil being very dependent on this energy matrix, in times of drought the tariff rises and the government imposes tariff flags. Renewable energies are the future – but also the present!
Investment in solar energy already allows both a significant reduction in the electricity bill each month and an awareness of sustainability.
Those who have solar panels at home already know that the surplus production is fed into the electricity grid. In return, the person receives credits, which are used to reduce the value of the account. This pattern is like that in many parts of the world.
But some countries have reached such a volume of energy production from solar photovoltaic sources that they are no longer able to do so, because the electricity grid does not support so many mini solar power plants, sending their surplus at times peak power generation. This is the case of Australia and the State of Hawaii, in the United States.
In models like this, the surplus is stored in batteries and used at times of greatest consumption. One of the trends we see is that the market will have different rates throughout the day.
In Israel, where I live, we already have morning and evening tariffs, summer and winter. The whole world is marching towards a model ‘grid compatible‘, respectful of the electricity network, but combining batteries for the clean storage of the surplus generated by solar energy.
And that surplus will even charge electric cars, which will also serve as storage options for use at other times.
During the day, when the solar panels are producing at their maximum level, it will be time to use appliances that consume a lot of energy and to recharge the car.
At night, when there are usually more people at home and a demand for power (shower, televisions, air conditioning, etc.), the batteries and the car itself can work as power sources.
If this possibility does not exist, the electrical network also remains available. In this way, it will be possible to meet the growing demand for energy across the planet.