“Energy is neither created nor destroyed, it is only transformed”, Conservation of energy dictated by the pioneer of chemistry Antoine Lavoisier.

Energy

Energy is defined as the ability to do work, to produce movement, to generate change.

The use of energy has been an essential need for humans for their development and throughout history its use has evolved. Thus, the human has had different energy models:

•  Pre-Agricultural Energy
•  Agricultural Energy
•  advanced agricultural
•  Preindustrial
•  Industrial
•  Advanced Industrial Power

With the development of the industrial revolution, non-renewable sources such as those from coal, oil, gas, or nuclear energy have been used. In the 21st century Despite having negative environmental consequences, it is still used and the damage is evident in global warming, air pollution, acid rain, etc.

Solar energy

Solar energy is a type of renewable energy that converts sunlight into electricity and has been one of the great environmentally friendly advances at the energy level.

There are two types of solar panels:

• Photovoltaic panels, which generate electricity directly from sunlight.
• Thermal panels, which use sunlight to generate heat and then use the heat to produce steam or hot water.

Solar panels are a type of photovoltaic (PV) system that converts sunlight into electricity through photovoltaic cells. These cells produce direct current (DC) power, which means they only 

produce one type of polarity. This means that for power to be used effectively in our homes or businesses, an inverter is required that converts this power into alternating current (AC)

We invite you to watch two videos where you can understand more in depth about solar energy.

USAID Colombia

How do solar panels work? – Richard Komp

When we know the different types of energy, understanding the needs and environmental problems of this time, we will be able to make appropriate decisions to maintain sustainable development.

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