Renewable Energy – Page 2 – Visualizing Energy

Explore the world’s hydropower plants in 2022

June 24, 2024

Hydropower, a pioneer in grid-scale electricity generation since the late 19th century, now provides 17% of global electricity, surpassing nuclear, wind, solar, bioenergy, and geothermal combined. While the US and Europe have well-established capacity with limited room for expansion, China, India, Africa, and South America are developing new projects to meet rising electricity demand and reduce greenhouse gas emissions.

How has the technology of hydropower changed since 1898?

May 27, 2024

Hydropower plants utilize different technologies to generate electricity. Impoundment facilities use a dam to create a reservoir, releasing water through turbines. Run-of-river plants channel river water to generate power while pumped storage hydropower stores energy by moving water between reservoirs of different elevations. Each technology has its advantages and impacts on the environment and infrastructure.

Explore the solid biomass resources of the United States

May 6, 2024

Biomass, derived from plants and animals, is a renewable energy source. The National Renewable Energy Laboratory mapped biomass resources in the US, including crop residues, forest residues, primary and secondary mill residues, and urban wood waste. These resources are used for heat, electricity, and fuel production. The maps offer county-level data for these resources.

Watch the history of biopower plants in the United States

April 29, 2024

Biomass generates electricity, or biopower, from sources like wood, agricultural residues, and urban waste. In the US, it accounts for 1.2% of electricity.

Watch the history of pumped storage hydropower in the United States

April 22, 2024

Pumped storage plants for hydroelectric power in the United States were primarily built between 1960 and 1990. There have been no new projects since 2012, but three new ones have been proposed, potentially adding 2.6 GW to the existing 22 GW capacity. The largest facility is the Bath County Pumped Storage Station in Virginia, with 2.9 GW.

What renewable fuels have the largest climate benefit?

April 1, 2024

Approximately 91% of transportation energy globally comes from petroleum fuels, creating 29% of US and 20% of global greenhouse gas emissions. Biofuels offer potential emission reductions but raise land use concerns. Ethanol’s carbon emissions have decreased, and ongoing research aims to further reduce them. Government support and investments are driving biofuel expansion.

Explore renewable fuels in the United States

March 18, 2024

In the United States, ethanol is mainly produced in the Midwest from corn, with Iowa, Nebraska, and Illinois leading in capacity. Ethanol is used as a fuel additive, with E85 being a high-level ethanol-gasoline blend used in flex-fuel vehicles. Biodiesel, made from vegetable oils and animal fats, is mainly produced in states with these feedstocks. Renewable diesel, chemically identical to petroleum diesel, is primarily used in California to meet emissions regulations.

Watch the history of geothermal power in the United States

December 18, 2023

In the United States, geothermal power plants are predominantly located in six western states due to significant tectonic activity. In 2022, California housed 72% of this capacity, generating 6% of its electricity from geothermal power. The Geysers project in northern California is the world’s largest geothermal array.

What countries have the greatest bioenergy power capacity?

October 23, 2023

As of January 2023, 575 utility-scale biopower plants were operational globally, with a total capacity of over 29,000 MW, less than 0.5% of worldwide power generation. An additional 6,000 MW are under construction. China is believed to significantly underreport its true biopower capacity, perhaps as high as 22,000 MW, primarily from agricultural residues and waste-to-energy facilities. Brazil, another major player, relies largely on sugarcane byproducts.

Where are new biopower plants being built?

October 16, 2023

Biopower is the production of electricity from biomass-derived fuels, with significant growth in Brazil due to sugarcane-based ethanol byproducts, while in certain regions like the United States, Germany, and the United Kingdom, waste-to-energy facilities are used due to land constraints and landfill opposition.

Tag: Renewable Energy