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Sustainability

Energy Efficiency

Using energy conscientiously and sustainably

Energy efficiency means reducing the wasteful use of such a precious resource, a theme that is currently at the center of global discussions. With simple attitudes, it is possible to optimize the electric energy consumption of several electrical equipment and ensure its purpose is preserved.

What is energy efficiency?

Electric power is present in virtually everything we do nowadays – switching our home lights on, cooking, and using our cellphones, or any other home appliances.

Electricity makes our lives simple, but it requires that we reduce the environmental and economic impacts arising from its use.

One of the best ways to reduce said impacts is by not wasting energy.

This is why energy efficiency is an important activity, as it identifies opportunities to optimize energy consumption, thereby reducing the waste of natural resources and expenses with electricity bills.

Tips on how to use electricity more efficiently in your daily routine
Replace fluorescent and incandescent light bulbs with LED light bulbs
LED light bulbs consume up to 85% less energy to produce the same amount of light.
Unplug electronic devices when not using them
Even on standby mode, TV sets and microwaves consume a small amount of energy.
Take shorter showers
Shorter showers reduce energy consumption by up to 35%, in addition to saving water. Your shower thermostat should be on summer mode most of the time. More modern showers are equipped with more temperature modes, which helps reduce energy consumption.
Try not to open your fridge door all the time and check the fridge door gasket
The fridge door gasket seals the space between the fridge's internal and external environment. When the gasket is old or damaged, the outside hot air coming in forces the fridge engine to use more electric power to cool.
Set your air conditioner to the correct temperature
Set your air conditioner to a mild temperature like 23 degrees Celsius, so it will consume less energy and your environment will be pleasant. Alternatively, you can prioritize natural ventilation or use a fan, which consumes less energy compared to air conditioners.
Use your iron and washing machine more efficiently
When washing, put a large amount of clothes in the washing machine, respecting the manufacturer's recommendations, saving washing cycles. And pile up as many pieces of clothing as possible to iron in one go.
What we are doing
Our Energy Efficiency initiatives

We invest over R$53 million in energy efficiency every year to modernize equipment in various economic sectors and to encourage consumers to change their energy consumption habits.

Our initiatives seek solutions that use fewer natural resources while maintaining quality.

Constantly present in low-income communities, public schools and institutions, as well as philanthropic and health institutions, we foster sustainable energy education for the entire society, from childhood.

Cemig's energy efficiency initiatives include:
  • Assessing and replacing obsolete equipment with more modern and economical ones;
  • Replacing high-consumption light bulbs with efficient LED light bulbs;
  • Instructing the population in electrical grid safety and economy practices.
Cemig's Energy Efficiency Program work fronts include:
Cemig in the Countryside and Cemig in the Communities
Cemig in the Countryside and Cemig in the Communities
Project aimed at replacing equipment and raising awareness about the use of energy among low-income residential clients living in cities, the countryside, communities, groups, occupied plots of land, and traditional rural communities.
Cemig in Hospitals
Cemig in Hospitals
Project aimed at replacing lights bulbs and electric equipment that are obsolete (especially in hospital laundries to ensure that the materials are sterilized and sanitized), such as autoclaves and washing machines, and at setting up photovoltaic plants.
Minas LED
Minas LED
In partnership with 490 municipalities of the state of Minas Gerais, the project aims to modernize more than 120 thousand public lighting points in the state.