Tag Archives: Keeping Watch on Earth News

Breakthrough for clean energy storage: massive new battery farm coming to California this decade

This Compressed Air Grid ‘Battery’ Is an Energy Storage Game Changer

Pumped hydropower is great. This method might be even better.
Popular Mechanics, by Caroline Delbert, May 3, 2021
hydrostor storage facility
Hydrostor storage facility
  • World-record compressed air energy storage is coming to California this decade.
  • Using air reduces overhead and materials costs compared with hydrogen storage.
  • Compressed air is stored during surplus times and fed back during peak usage.

Two new compressed air storage plants will soon rival the world’s largest non-hydroelectric facilities and hold up to 10 gigawatt hours of energy. But what is advanced compressed air energy storage (A-CAES), exactly, and why is the method about to have a moment?

Compressed air is part of a growingly familiar kind of energy storage: grid-stabilizing batteries. Like Elon Musk’s battery farm in Australia and other energy overflow storage facilities, the goal of a compressed air facility is to take extra energy from times of surplus and feed it back into the grid during peak usage.

Here’s how the A-CAES technology works: Extra energy from the grid runs an air compressor, and the compressed air is stored in the plant. Later, when energy is needed, the compressed air then runs a power-generating turbine. The facility also stores heat from the air to help smooth the turbine process later on.

While the efficiency of similar systems has hovered around 40 to 50 percent, the new system from Hydrostor, a major global leader in building hydroelectric storage, reportedly reaches 60 percent, according to Quartz.

Hydostor will store compressed air in a reservoir that’s partly filled with water to balance out the pressure. The whole system will hold up to 12 hours of energy for the grids where the two plants are planned. (The first plant will be built in Rosamond, California, while the second location is to be determined.)

hydrostor energy storage facility
Hydrostor energy storage facility

Why branch out from hydrogen to compressed air? While hydro storage is a great part of the global energy scene, storing massive amounts of water requires a ton of infrastructure that Hydrostor says uses a lot of energy it’s ultimately trying to save. That makes intuitive sense if you think about the relative force of water compared with even heavily pressurized air.

New Atlas elaborates:

“Pumped hydro accounts for around 95 percent of the world’s grid energy storage and gigawatt-capacity plants have been in operation since the 1980s. The problem is that you need a specific type of location and a staggering amount of concrete to build a pumped hydro plant, which works against the goal of reaching net zero. Rotting vegetation trapped in dams also contributes to greenhouse gas emissions. Meanwhile, the biggest mega-batteries built so far are only in the 200 MW/MWh range, though installations bigger than 1 GW are planned.

Recharge reports that companies have built smaller existing CAES facilities over naturally occurring salt caverns. In contrast, Hydrostor will be digging new caverns to use for its larger facilities in California, just as engineers are constructing huge salt caves in Utah to store hydrogen.

The first of Hydrostor’s two plants is set to open in 2026, and the company says its system will last for about 50 years—making it a lot longer-lived than almost any energy storage of its kind. The near future of energy is likely made of a dozen different solutions that are all suited to different environments and situations, so adding compressed air to the portfolio simply makes sense.

ACTION ALERT – Support oil and gas drilling setbacks

ACTION ALERT

TAKE A STAND WITH PDB AND  350 BAY AREA ACTION
TO SUPPORT FRONTLINE COMMUNITIES

in demanding health and safety setbacks
from oil and gas drilling in California

SB 467, the Dirty Drilling Phase out and Setbacks bill, did not pass through the Natural Resources and Water Committee last week because it was ONE VOTE SHORT, but the fight is not over. 

The bill is now being amended to ensure that frontline communities are protected from toxic oil and gas drilling by requiring a 2,500 foot setback for the over 2 million Californians that live, work, go to school, and are cared for with oil and gas drilling right in their backyards.

Texas has setbacks—and CA does not. This harms mostly low-income and Black, Latinx, and Indigenous communities. We have just a few days to get at least one vote to move this bill forward to protect the health and safety of our children, neighbors, friends, and workers from the oil and gas industry’s harmful practices. Here’s your chance to join the statewide VISÍON ALLIES Coalition and tell our lawmakers to do something for the health of Californians.

CALL THREE SENATORS NOW AND MAKE A DIFFERENCE 

The target is 1,000 calls to three Senators to urge them to vote YES when the amended bill comes back for a vote. 

Ralph Dennis, Benicia

Thank you for taking action today to secure the health and safety of vulnerable frontline communities. 

Ralph Dennis, Chair

Suisun Marsh gas drilling plan runs into environmental buzz saw

SOLANO COUNTY, CALIFORNIA – APRIL 7: Suisun Marsh as seen from Solano County, Calif., on Wednesday, April 7, 2021.There is a proposal to drill into the Suisun Marsh for fossil fuels. (Nhat V. Meyer/Bay Area News Group)
SOLANO COUNTY, CALIFORNIA – APRIL 7: Suisun Marsh as seen from Solano County, Calif., on Wednesday, April 7, 2021. There is a proposal to drill into the Suisun Marsh for fossil fuels. (Nhat V. Meyer/Bay Area News Group)
East Bay Times, by Shomik Mukherjee, April 12, 2021

The Suisun Marsh — known as the largest swath of contiguous wetlands on the West Coast and a haven for thousands of migrating waterfowl — has become the Bay Area’s latest battleground between fossil fuel producers and environmentalists hellbent on fighting climate change.

A Brentwood company, Sunset Exploration Inc., announced in January it wants to explore for natural gas by drilling a section of the 116,000-acre marshland about 9 miles southwest of Suisun City in an area known as Hunter’s Point, according to the U.S. Army Corps of Engineers.

Sunset proposes to construct a gravel drilling pad almost an acre large and drop a volleyball-sized drill bit about a half-mile into the sandstone ground, probing to see if there’s enough gas worth extracting. This first-phase process would last several weeks.

If the well yields enough natural gas, Sunset next plans to build a pipeline from the drilling pad to send the gas to an existing pipeline about a mile and a half away, There, the gas would be tapped to serve about 30,000 homes in the surrounding region for up to 10 years.

Because Sunset already has mineral rights to more than 4,400 acres in the Suisun Marsh, it can technically drill without a permit. But it won’t be able to if the Army Corps determines the well and pipeline would harm the environment.

A coalition of environmental groups, including San Francisco Baykeeper and Center for Biological Diversity, has already taken a stand against the project and wrote a Feb. 26 letter urging the Army Corps to reject Sunset’s request for a permit.

They contend the drilling operation would contribute to climate change because combusting natural gas to produce energy releases carbon emissions. Plus there’s the added risk of gas leaks.

In addition, opponents contend the project would threaten hundreds of bird, fish, mammal and reptilian species that thrive in the marsh, as well as sensitive plants such as the Suisun thistle that doesn’t grow anywhere else on Earth.

So swift and fierce was their response that Sunset is contemplating a retreat.

“It may not be worth the fight,” Bob Nunn, president of Sunset Exploration, said in a recent interview.

Joining the chorus against the project is the state Department of Justice’s Office of the Attorney General, which sent its own letter recently telling the Army Corps that it’s concerned drilling would disrupt natural habitats and produce more carbon emissions at a time when the state is attempting to tamp down its fossil fuel production.

“The proposed fill and drilling in areas of Suisun Marsh could harm unique and irreplaceable habitat for endangered California Ridgway’s rail and salt marsh harvest mouse, numerous migratory bird species, listed fish species, and the very rare Suisun thistle,” the attorney general’s office wrote.

Asked why a state law enforcement agency would weigh in on a drilling project, the office replied in an email, “We’ll let the letter speak for itself.”

Even if the Army Corps signs off on the drilling plans, Sunset Exploration would need to get the OK of other federal and state environmental regulatory agencies, such as the California Department of Fish and Wildlife and the California Regional Water Quality Control Board.

If approved, Sunset’s wouldn’t be the only natural gas well at Suisun Marsh. Several other active gas wells operate there, their locations shown on an online map created by the California Geological Energy Management Division. About a dozen other gas wells have been plugged and are no longer active for various reasons. Nunn said these wells are similar in size to what he proposes to build.

“We were surprised at the level of opposition,” Sahrye Cohen, a regulatory chief at the Army Corps who will review the permit application, said in an interview. “I think it’s an indication of the times. People don’t want fossil fuels in California.”

SOLANO COUNTY, CALIFORNIA – APRIL 7: Suisun Marsh as seen from Solano County, Calif., on Wednesday, April 7, 2021. There is a proposal to drill into the Suisun Marsh for fossil fuels. (Nhat V. Meyer/Bay Area News Group)

Sunset’s Nunn acknowledged his company is pondering whether the costs of an extended review process are justified given the stiff resistance.

“The environmental community likes to thrust longer and longer delays on the smaller projects, until eventually the project becomes unrealistic and the operator says, ‘To hell with it,’” Nunn said.

While natural gas is cleaner than oil, producing less greenhouse gas emissions when it combusts, it still is a fossil fuel — and California’s goal is to reduce its emissions by 40% before 2030, an ambitious plan that involves transitioning to fully renewable energy sources.

Nunn called critics of oil and gas drilling hypocritical for participating in a carbon-fueled society and argued that shipping oil to California from elsewhere emits more carbon than would his local drilling project.

San Francisco Baykeeper’s executive director described Nunn’s comments as “nonsense,” saying there’s no tolerance in the Bay Area for “dinosaur oil companies” amid a transition to cleaner energy sources.

“Any time there’s drilling in the vicinity of wetlands, you need to evaluate thoroughly the environmental impacts of that drilling,” Sejal Choksi-Chugh said in an interview. “The Bay is no place for oil and gas drilling — the fact that (the company) is reconsidering is a big step and we’re pleased to hear that.”

Jacob Klein, an organizer with the Sierra Club’s Redwood Chapter, described Nunn’s justification for drilling locally and extracting natural gas instead of oil as “common talking points” that ignore the bigger picture.

“Rather than make comparisons between petroleum-based energy sources, we just need to be leaving (natural gas) in the ground,” Klein said.

Project opponents also point to the immediate environmental damage that drilling can wreak. A pipeline operated by energy company Kinder Morgan burst in 2004, spilling more than 120,000 gallons of oil into the marsh and killing numerous species.

Sunset Exploration acquired an existing Solano County permit and 4,400 acres of mineral rights for Hunter’s Point in 2018 after previous holder Venoco went bankrupt as it was seeking to obtain a drilling permit from the Army Corps.

Sunset was hoping to finish the job, though the opposition is now giving it second thoughts.

“They’re singling me out,” Nunn said. “If this gets drawn out for months and years, the real loser will be the environment.”

Benicia Valero Refinery – oil spill in Sulphur Springs Creek

Valero Benicia Refinery Reports Oil Sheen

The refinery deployed a boom to contain the sheen and the Benicia Fire Department is monitoring the situation.
Benicia Patch, by Maggie Fusek, Mar 9, 2021 at 7:33 pm PT
[BenIndy Editor: See also: Benicia Fire Department Level 2 Notification, and CA Hazardous Materials Spill Report.  – R.S.]
The refinery is seen from Interstate Highway 680. (Shutterstock / Frankie WO)

BENICIA, CA — Personnel with the Benicia Fire Department were monitoring an oil sheen reported Tuesday by the Valero Benicia Refinery in Sulphur Springs Creek.

The refinery notified the fire department that at 2:50 p.m. Tuesday, a sheen from an unknown type of oil was spotted in the waters of the creek, Benicia Fire Department officials said.

“Valero Benicia Refinery commenced mitigation efforts at 3:20 p.m.,” fire officials said. “The sheen has been contained and proper clean up, notification and mitigation procedures were underway.”

The incident was not a threat to drinking water or public safety although fire personnel will continue to monitor the situation and will update the public if conditions change, fire officials said.

According to a hazardous materials spill report issued by the Governor’s Office of Emergency Services at 3:45 p.m. Tuesday, Valero Energy discovered the sheen at 2:50 p.m. Tuesday. The cause of the Petroleum sheen was not known, nor had the source been determined. Refinery personnel contained the sheen by deploying a boom; cleanup was underway and an investigation was ongoing.