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What is renewable energy?

We have long shown leadership and support the use of renewable in energy production. Currently, there are five main types of renewable energy. Here’s how they work:

Biomass

Byproducts are converted into biogas through the natural process of anaerobic digestion. The gas is then burned to create electricity. Byproducts, like wood waste at Avista’s Kettle Falls, Washington, facility, may also be burned directly to generate steam to produce electricity.

Geothermal

This technology produces electricity from hydrothermal resources. There are two types of geothermal: steam and binary. Steam uses very hot water resources that rotate a turbine that activates a generator to produce power while a binary system utilizes lower temperature resources with a heat exchanger to generate electricity.

Hydroelectric

Hydropower is clean, efficient, and reliable. Dams guide water to drive turbines and a generator to create electricity. Approximately half of Avista’s electricity is generated from hydro.

Solar

Energy from the sun is captured and converted to electricity with photovoltaic cells. This inexhaustible source of energy does not produce carbon dioxide emissions but remains a more expensive form of renewable energy.

Wind

Wind power is the world’s fastest growing renewable energy resource. Wind spins the turbine blades to generate emission-free electricity.

To learn more about renewable energy, visit the links below:

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