central california

Solar Panels On Canals | Earth Wise

August 25, 2023 By EarthWise Leave a Comment

There has been growing interest in installing solar panels on top of reservoirs to make use of the available space to make electricity and reduce evaporation. There has been far less interest in installing solar on canals and aqueducts. But that is changing and a new project in California is part of that change.

A study by the University of California, Merced estimates that 63 billion gallons of water would be saved by covering California’s 4,000 miles of canals with solar panels. All that installed solar would generate a significant amount of electricity.

The idea is going to be tested in the Turlock Irrigation District in Central California with Project Nexus, which is the installation of solar panels over 1.8 miles of canals that are between 20 and 110 feet wide. The panels will sit between 5 and 15 feet off the ground. UC Merced researchers will study impacts ranging from evaporation to water quality and use the results to make recommendations with respect to wider use of the technology.

California isn’t the first place to put solar on a canal. India pioneered it on one of the largest irrigation projects in the world. The Sardar Sarovar dam and canal project brings water to hundreds of thousands of villages in the dry, arid region of India’s Gujarat State.

Meanwhile, the Gila River Indian Community in Arizona received funding from the Bipartisan Infrastructure Law to install solar panels on their canals in an effort to save water and reduce stress on the struggling Colorado River.

The world of water infrastructure does not embrace change easily but covering canals with solar panels is an idea whose time may have come.

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Solar panels on water canals seem like a no-brainer. So why aren’t they widespread?

Photo, posted December 11, 2005, courtesy of Dave Parker via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

California Offshore Wind Auction | Earth Wise

January 10, 2023 By EarthWise Leave a Comment

In December, the Bureau of Ocean Energy Management held the first auction for offshore wind energy leases on the West Coast. The BOEM lease sale offered five lease areas covering 373,268 acres off the central and northern California coast. The leased areas have the potential to produce over 4.6 gigawatts of wind energy, which is enough to power 1.5 million homes.

The auction drew competitive bids from five companies totaling over $750 million. The winning bidders were RWE Offshore Wind Holdings, California North Floating, Equinor Wind, Central California Offshore Wind, and Invenergy California Offshore.

RWE is a German company with subsidiaries across the globe. California North Floating is an affiliate of the Danish developer Copenhagen Infrastructure Partners. Equinor Wind is a Norwegian company already heavily involved in offshore wind projects on the East Coast. Central California Offshore Wind is managed by a joint venture between Spanish and French energy companies. Invenergy is a privately held global developer and operator of renewable energy headquartered in Chicago.

The bidders will receive credits for participating in programs that support work force training programs for the floating offshore wind industry and/or the development of a US domestic supply chain for that industry.

Offshore wind off the Pacific coast has enormous potential for enhancing the country’s energy future but represents a significant challenge because the deep ocean floors necessitate the use of floating wind technology as opposed to turbines that are affixed to the sea floor.

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Biden-Harris Administration Announces Winners of California Offshore Wind Energy Auction

Photo, posted December 30, 2013, courtesy of Derek Finch via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

California Offshore Wind | Earth Wise

June 28, 2021 By EarthWise Leave a Comment

Offshore wind has been pretty much a non-starter in the U.S. until recently. Now there is considerable activity in the Northeast Atlantic with major projects getting started off the coasts of Massachusetts, New York, and other eastern states. The prospects for wind farms in the Pacific, on the other hand, have been pretty dismal. There are significant logistical problems posed by a deep ocean floor and also opposition from the Navy that does not want obstacles for its ships.

A combination of progress in floating wind turbine technology and the arrival of an administration highly supportive of renewable energy technology has changed the situation. In late May, the Navy abandoned its opposition to Pacific offshore wind and joined the Interior Department in giving support to allowing two areas off the California coast to be developed for wind turbines.

The plan allows commercial offshore wind farms in a 400-square-mile area in Morro Bay in central California, and in another area off the Humboldt Coast in Northern California.

The two California sites could support enough wind turbines to generate electricity to power 1.6 million homes. That would make the California coast one of the largest generators of wind power in the world. The forthcoming Vineyard Wind farm in Massachusetts is expected to have 84 giant turbines. The two California sites could hold more than 300 turbines.

The offshore wind industry is booming around the world, especially near the coasts of Norway and the UK, where the water is shallow, and turbines can be anchored to the ocean floor. By contrast, the Pacific Ocean floor drops steeply from the coastline, making it too deep to anchor wind towers. The newly emerging technology of floating turbines is the key to establishing offshore wind in the Pacific.

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Biden Opens California’s Coast to Wind Farms

Photo, posted August 7, 2013, courtesy of Ray Bouknight via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.