Will 'blue power' be a new source of clean energy?
By Julie Cart | CalMatters
Published December 4, 2023 5:00 AM
Some wave technology, like this one from Eco Wave Power, is deployed near shore, attached to seawalls or jetties, where paddle-like devices are driven up and down by wave action, activating hydraulic energy.
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Courtesy of Eco Wave Power
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Topline:
Nearly 600 square miles of ocean off California have been leased for floating wind farms, with more expected. Now the state is considering hosting another renewable energy technology in the sea: Blue power, electricity created from waves and tides.
The backstory: A new law signed by Gov. Gavin Newsom in October instructs state agencies to study the feasibility and impacts of capturing ocean movement to create power and report back to the Legislature by January 2025. The goal is to jumpstart an industry that could fill in the power gaps as California tries to achieve its goal of transitioning to an all-renewable electric grid by 2045.
How does it work? Energy from waves and tides is generated by an action that the ocean almost always provides — movement. Although wave and tidal devices take different forms, most capture the ocean’s kinetic motion as seawater flows through cylinders or when floating devices move up and down or sideways. In some cases, that movement creates hydraulic pressure that spins a turbine or generator.
How's it going so far? For all the interest in renewable energy — and the government subsidies — public investment in ocean energy has lagged. And the technology that would make the projects more efficient, cost effective and able to withstand a punishing sea environment is still under development, and the cost to produce wave and tidal power is expected to be quite high in the early years.
Read on ... for details of demonstration projects along the West Coast.
The world’s oceans may be vast, but they are getting crowded. Coastal areas are congested with cargo ships, international commercial fishing fleets, naval vessels, oil rigs and, soon, floating platforms for deep-sea mining.
But the Pacific Ocean is going to get even busier: Nearly 600 square miles of ocean off California have been leased for floating wind farms, with more expected. Now the state is considering hosting another renewable energy technology in the sea: Blue power, electricity created from waves and tides.
A new law signed by Gov. Gavin Newsom in October instructs state agencies to study the feasibility and impacts of capturing ocean movement to create power and report back to the Legislature by January 2025.
The goal is to jumpstart an industry that could fill in the power gaps as California tries to achieve its goal of transitioning to an all-renewable electric grid by 2045.
But for all the interest in renewable energy — and the government subsidies — public investment in ocean energy has lagged. And the technology that would make the projects more efficient, cost effective and able to withstand a punishing sea environment is still under development.
So far, a handful of small demonstration projects have been launched off the West Coast, although none has produced commercial power for the grid. Through 2045, the California Energy Commission’s new projections for future power do not include any wave and tidal power. Yet energy experts say there is great potential along the Pacific coast.
“Of all the energies out there, marine energy has been the slowest to develop. We are kind of where land-based wind was 20 or 30 years ago,” said Tim Ramsey, marine energy program manager at the U.S. Department of Energy’s Water Power Technologies Office.
Energy from waves and tides is generated by an action that the ocean almost always provides — movement. Although wave and tidal devices take different forms, most capture the ocean’s kinetic motion as seawater flows through cylinders or when floating devices move up and down or sideways. In some cases, that movement creates hydraulic pressure that spins a turbine or generator.
As with all developing energy technologies, Ramsey said, the cost to produce wave and tidal power is expected to be quite high in the early years.
Although there have been advances in technology, getting ocean-based projects from the pilot stage to providing commercial power to the grid is the next hurdle for the industry — and it’s a substantial one.
“It’s very expensive right now, and really hard to do. Working out in the water is very complex, in some cases in the harshest places on Earth…Then being able to build something that can last 20 to 30 years. We’ve made progress, but we’re a decade away,” Ramsey said.
Of all the energies out there, marine energy has been the slowest to develop. We are kind of where land-based wind was 20 or 30 years ago.
— Tim Ramsey, U.S. Department of Energy's Water Power Technologies Office
State Sen. Steve Padilla, a Democrat from Chula Vista and the author of the wave energy bill, said ocean power has “great potential” but it has been agonizingly slow.
“Folks have been busy focusing on other things,” he said, citing the state’s current push for floating offshore wind development. “There has been a combination of a lack of knowledge and awareness of the infrastructure and impacts. We know the state’s energy portfolio has to be as broad as possible.”
A spokesperson for the California Energy Commission, which is taking the lead on the new state study, declined to comment about wave power, saying its work has not yet begun.
The potential is enticing: The National Renewable Energy Laboratory estimated that the total wave and tide energy resources that are available in the U.S. with current technologyare equivalent to 57% of 2019’s domestic energy production. While the report noted that the technologies are in early stages of development, “even if only a small portion of the technical resource potential is captured, marine energy technologies would make significant contributions to our nation’s energy needs.”
The U.S. Department of Energy’s “Powering the Blue Economy” initiative, among others, provides grants and sponsors competitions to explore new and better technology. The fiscal year 2023 federal budget for ocean waves energy is $123 million, Ramsey said.
One program is funding research led by national labs, including designs to improve wave-driven turbines and building better motor drives for wave-energy converters.
Motion in the ocean
The idea of harnessing wave power has been kicking around California for decades. So has the state policy of ordering research into its potential: A 2008 study prepared for the Energy Commission and the Ocean Protection Council concluded that much more research was needed to better assess the potential impacts of wave and tidal energy.
At the time that study was released, one of the technology’s most ardent proponents was a young politician named Gavin Newsom. While mayor of San Francisco in 2007, Newsom proposed a tidal energy project near the Golden Gate Bridge. That idea was scrapped because it was prohibitively expensive.
Not long after, as lieutenant governor, Newsom backed a pilot wave energy project he hoped would be up and running by 2012 or 2013. It wasn’t.
But the dream has not died. California is already hosting wave energy projects, including one being assembled at AltaSea, a public-private research center that supports marine scientists focusing on the so-called Blue Economy. It operates out of a 35-acre campus at the Port of Los Angeles.
Its CEO is Terry Tamminen, a former California environmental secretary, who had a hand in writing the new wave and tidal energy law. Tamminen said wave energy has been ignored by some state and federal officials in the face of “irrational exuberance” for offshore wind.
He said the smaller, cheaper wave energy development would help the state meet its clean energy goal and could produce power well before massive floating offshore wind projects.
These machines can only be developed toward commercial viability by putting them in the water and assessing their performance. .. It’s a long slog to build and deploy and make money.
— Jason Busch, Pacific Ocean Energy Trust
One of AltaSea’s tenants, Eco Wave Power, is designed to deploy near shore, in breakwaters and jetties that roil with moving water. Its floating, paddle-like arms bob up and down in waves, triggering hydraulic pistons that power a motor.
Tamminen said the system is “ready to deploy. Within two years we could have a commercial installation of Eco Wave technology.” The demonstration project will be installed at a wharf in L.A.’s harbor and will not generate any significant power, he said.
California is not likely to see much electricity from tidal energy, said Jason Busch, executive director of Pacific Ocean Energy Trust, an Oregon-based nonprofit fostering research into marine energy. He said the state of Washington is more conducive to this new energy, for example, because it has deep bays and estuaries for funneling water through turbine equipment.
“A little bit of homework would have told you there isn’t much of a tidal opportunity in California,” he said.
A small number of companies are preparing to launch pilot wave projects in other states. The Navy operates a wave energy test site in Hawaii; three developers are preparing to launch new projects in the water there.
PacWave, which operates two test sites off Newport, Oregon, is another demonstration project. A California-based company, CalWave, which concluded a 10-month demonstration off the Scripps Institute of Oceanography’s research pier in San Diego, will deploy its wave energy devices in a grid-connected, pre-permitted open-water test. The demonstration at the Oregon site is scheduled to begin next year.
This type of wave-energy device is moored in the open ocean, where it is submerged. Units like this from CalWave will be used in a project off the coast of Oregon that will provide power to the grid.
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Courtesy of CalWave
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Much is riding on the success of the project, which took 11 years to acquire permits. Some testing has been conducted with small-scale versions of the final device, but not in harsh open water conditions and with no expectation of supplying power to the grid.
“It’s the first-of-its-kind full-scale deployment. Not in ‘nursery’ conditions. It’s the real world, off you go,” said Bryson Robertson, director of the Pacific Marine Energy Center at Oregon State University, which is constructing the two testing sites. “We want to prove that we can deliver power.”
Robertson, an engineer who studies wave dynamics, said one of the technologies being tested places large, buoyant squares in the water just below the surface, attached by lines to the sea floor. Kinetic energy is created as the floats bob and pitch with the action of the waves.
Some companies’ technology sits atop the waves and others are fully submerged. Another is deployed on the surface and moves like a snake, with each segment creating energy from its movement. Each bespoke device is expensive, and some of the one-of-a-kind devices can cost $10 million to design and build.
The industry “hasn’t narrowed in on a winning archetype,” Ramsey said. Some smaller designs can be picked up and thrown off a boat, he said, while others are large enough to need a boat to tow them into position.
It’s the first-of-its-kind full-scale deployment…We want to prove that we can deliver power.
— Bryson Robertson, Pacific Marine Energy Center at Oregon State University
To Busch, it’s a critical moment for ocean energy, with small companies requiring years to raise enough funding to continue testing. And with attention on the industry, they cannot afford to stumble.
“Early companies that got full-scale machines in the water committed the mortal sin of overpromising and under-delivering to shareholders. One by one they went into bankruptcy,” he said.
“This is the second generation. These machines can only be developed toward commercial viability by putting them in the water and assessing their performance. That process is very long. Companies receive only limited private capital. The venture capital model does not fit marine energy. It’s a long slog to build and deploy and make money.”
In the near future, wave and tidal energy may not provide huge amounts of power in the clean-energy mosaic that will form the grid, but the technology may prove to be one of the most versatile. Experts say marine power doesn’t have to be transported to shore to be useful — it could charge oceangoing vessels, research devices, navigation equipment and aquaculture operations.
Closer to shore, modest wave-powered projects could support small, remote so-called “extension cord communities” at the end of the power supply. Federal researchers also foresee ocean power being used for desalination plants.
Wave-powered generators and other renewables are already supplying all of the needs of the Orkney Islands in Scotland, with the surplus energy used to create hydrogen to run ferries to the mainland.
Lots of unknowns
New technology often comes cloaked in questions: How will the wave devices impact marine animals, shipping and other ocean users? What about transmission lines and possible floating power stations?
“Blue energy synergy" is a future possibility, with wave projects sited alongside floating offshore wind projects, allowing the power producers to share transmission lines and other infrastructure.
The state report due next year is meant to answer those questions and more.
“We still don’t fully understand all of the interactions of the device in the marine environment,” Ramsey said. “Until you can put devices in the water and get long-term data collection, we don’t know. We do try to extrapolate from other industries and activities in the ocean — oil and gas, offshore wind — but that only gets you so far.
“I think the potential is so enormous. If we can figure out how to do it cost-effectively, I know it will get solved. I hope the U.S. is at the forefront of solving that. If we lose a big industry to overseas, that is a lost opportunity.”
Josie Huang
is a reporter and Weekend Edition host who spotlights the people and places at the heart of our region.
Published April 5, 2026 12:24 PM
Jackie and Shadow's new chicks.
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Screenshot of footage captured by Friends of Big Bear Valley and Big Bear Eagle Next Cam
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Topline:
Jackie and Shadow have two new chicks this Easter Sunday.
Details: The first eaglet arrived last night around 9:30 p.m., the second around 8:30 a.m. this morning.
Read on and look at footage of the new chicks from the nonprofit, Friends of Big Bear Valley.
Congrats to Big Bear's celebrity bald eagle couple.
Jackie and Shadow have two new chicks this Easter Sunday. Thousands of fans have been watching their eggs hatch on the popular nest livestream that made the eagles famous.
The first eaglet arrived last night around 9:30 p.m., the second followed around 8:30 a.m.
The nonprofit that runs the livestream, Friends of Big Bear Valley, says dad Shadow showed up after the second hatch and saw his two chicks for the first time.
Mom Jackie is is showing a natural behavior that’s actually a good sign. The nonprofit says she's salivating more — which helps provide electrolytes and antibodies her chicks need.
The two eggs each showed signs of a pip — or first crack — on Friday and Saturday.
The Writers Guild of America has announced a tentative four-year contract agreement with the Alliance of Motion Picture and Television Producers, which represents Hollywood studios, television networks and streaming services.
Why it matters: The new agreement spans four years, longer than the typical three-year deal. In a social media post, the WGA said the deal "protects writers’ health plan and puts it on a sustainable path, builds on gains from 2023, and helps address free work challenges."
In a statement posted on its website, AMPTP said, "We look forward to building on this progress as we continue working toward agreements that support long-term industry stability."
Why now: AMPTP and the WGA have been in negotiations since March. The announcement yesterday came a little under a month before the union's current contract was set to expire on May 1.
The backstory: In 2023, contract negotiations broke down between writers and producers, which led to a historic five-month writers strike. That strike ended with the WGA notching huge gains in compensation, streaming residuals and AI protections.
What's next: The tentative agreement still needs to be ratified by the full WGA membership. The union's negotiating committee said union members will receive detailed information in the coming days.
Topline:
The Writers Guild of America has announced a tentative four-year contract agreement with the Alliance of Motion Picture and Television Producers, which represents Hollywood studios, television networks and streaming services.
Why it matters: The new agreement spans four years, as opposed to the typical three-year deal. In a social media post, the WGA said the deal "protects writers’ health plan and puts it on a sustainable path, builds on gains from 2023, and helps address free work challenges."
In a statement posted on its website, AMPTP said, "We look forward to building on this progress as we continue working toward agreements that support long-term industry stability."
Why now: AMPTP and the WGA have been in negotiations since March. The announcement yesterday came a little under a month before the union's current contract was set to expire on May 1.
The backstory: In 2023, contract negotiations broke down between writers and producers, which led to a historic five-month writers strike. That strike ended with the WGA notching huge gains in compensation, streaming residuals and AI protections.
What's next: The tentative agreement still needs to be ratified by the full WGA membership. The union's negotiating committee said union members will receive detailed information in the coming days.
Keep up with LAist.
If you're enjoying this article, you'll love our daily newsletter, The LA Report. Each weekday, catch up on the 5 most pressing stories to start your morning in 3 minutes or less.
A Southwest Airlines plane takes off from Burbank. Travelers are advised to arrive early.
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Mario Tama
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Getty Images
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Topline:
The Hollywood Burbank Airport is advising flyers to arrive at least two hours earlier than usual because of construction slated to begin Monday and last for 60 days.
What’s closed: One lane of traffic on the southbound side of Hollywood Way near Thornton Avenue will be closed during construction. The sidewalk and bike lane on the west side of Hollywood Way will also be closed.
What’s the alternative: Officials are advising passengers to use the Empire Avenue entrance, or enter the airport westbound on Thornton Avenue.
The Hollywood Burbank Airport is advising flyers to arrive at least two hours earlier than usual for the next 60 days because of construction slated to begin Monday.
Road closures: One lane of traffic on the southbound side of Hollywood Way next to Thornton Avenue will be closed during construction. The sidewalk and bike lane on the west side of Hollywood Way between Winona Avenue and Thornton Avenue will also be closed.
When: Construction will occur Mondays through Saturdays from 9 a.m. to 3:30 p.m. through June 6.
Why: Airport spokesperson Mike Christensen told LAist crews are building a retaining wall as part of Hollywood Burbank's passenger terminal construction project.
Alternatives: Officials recommend passengers use the Empire Avenue entrance or take Thornton Avenue to get to the airport.
Suzanne Levy
is a senior editor on the Explore LA team, where she oversees food, LA Explained and other feature stories.
Published April 5, 2026 5:00 AM
LAist senior editor Suzanne Levy details her encounter with the iconic Joshua tree
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Mario Tama
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Courtesy Suzanne Levy
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Topline:
LAist senior editor, Suzanne Levy, who grew up in the UK, tells the story of the first time she went to Joshua Tree and experienced the desert's strange, out of the world landscape.
On seeing a Joshua Tree: "What? Wait, stop the car. There’s an actual Joshua Tree? It looks like an alien to me!"
On seeing a desert sunset: "I marveled at the gorgeousness of the sunset, the morphing colors and the vastness of the sky."
While living in L.A., I’d been hearing about this thing — “the desert.” Seemed a bit odd to someone who lived on the Westside next to the ocean, but OK, you can also see mountains from my house, so why not throw in an entire landscape food group?
A few years ago, I figured it was time to try it out, and my family and I headed to Joshua Tree for the weekend.
We began driving east and were soon in that vast no man’s land around the 10 Freeway. On one side, I could see a moving train, with all those boxcars. I was watching, entranced, waiting to see it go past. And it kept going. And going. It was like a vibrant desert serpent, wending its way through the landscape, each boxcar a different hue. It seemed so romantic, and then I thought “in each one, there’s a whole load of hanging car air fresheners, dental floss and Japanese waving cats” and suddenly the spell was broken. Ah well.
The eerie, alien Joshua Tree.
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Sean Gallup/Getty Images,
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Getty Images North America
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As we got nearer, I said “Huh, what's that weird thing that looks like an alien?” and my husband said, “Yes, that’s a Joshua Tree.”
What? Wait, stop the car. There’s an actual Joshua Tree? First, who knew, and second, that is no tree. That, sir, is a weird misshapen cactus, with multiple crooked arms reaching into the air, each with its own spiky fur muff. Kinda like one of those waving inflatable guys if they were static. (Ah, I've been in L.A. too long).
Bougie smores
The vast desert sky.
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Steve Holtzman
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Courtesy Suzanne Levy
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We finally arrived at our destination, a campsite — OK, a glamping campsite, a whole bunch of airstream trailers laid out with firepits. I knew it was bougie when I went to buy a smores kit from the shop and came back with 70% dark chocolate, artisanal graham crackers and single origin marshmallows. (I made that marshmallow one up, but it really is just a matter of time).
We made a fire, marveling at the gorgeousness of the sunset, the morphing colors and the vastness of the sky. I sat afterwards watching the flames, the cold air on my skin, under a blanket of stars. Tears pricked my eyes.
About this story
LAist Senior Editor Suzanne Levy writes about her experiences as a Brit in the U.S. in her ongoing series: American As A Second language.
In the morning we headed to Joshua Tree National Park. When we got out of the car, the vista hit me, with that bright, bright sun, strange looking rocky outcrops, and nothing but Joshua trees as far as the eye could see. I thought: I have never seen anything like this. I couldn’t have even imagined something like this. In London, if you go on a day trip, you can go back in time, say to the thatched roofs of the Cotswolds — but not to a different planet.
What an extraordinary continent this is, I think. I am awestruck by its endless, varied landscapes — the plains, the Rockies, the oceans and the forests. And there’s something particular about the desert — its simplicity, its reduction to just three or four elements, which relaxes you, chills you out.
I remember heading back to L.A. after the weekend, happy and mellow, smiling as we drove west into the setting sun. It’s a cliche, but the desert does call you back. And I hope to get back there very soon.