For the last 20 years we have solved the problem of creating cheap renewable energy. RayGen’s point is that we’re still terrible at building renewables. Grid – aIt’s a problem they can solve.
That’s because renewable energy is produced during the day, and electricity consumption is highest in the evening. And since it’s usually built far from cities, aging power grids have to carry it thousands of kilometers.
RayGen Chief Commercial Officer Will Mosley said: “Right now, we cannot run the grid on green energy. If we could, we would see that happening globally.”
The solution is storage. Electricity is produced during the day, and it is operated and sold at night. Many have advertised Tesla-style batteries, but RayGen is skeptical. “Batteries are too expensive,” Mosley said. “You can’t buy it now. Raw materials are a big constraint.”
It also doesn’t last long enough. It only takes 4-6 hours to charge.
RayGen’s solution is known as a thermal hydro battery. Hot water is stored in one tank. Solar power is used to cool another tank to zero degrees.
The hot water is fed into an organic Rankine cycle turbine, which heats the pressurized ammonia into steam that spins the turbine. Cold water then condenses the ammonia and the cycle begins again.
Inexpensive storage that can hold power all day and feed the grid at night. “It’s roughly equivalent to a big battery,” Mosley said. “But as you can see, it’s really just a dam filled with agricultural water.”
does it work? Tony Wood, director of the energy program at the Grattan Institute, says the technology is sound. “The problem is the economy.”
Solar panels are really cheap. RayGen’s more complex systems need to generate large amounts of power to stay competitive.
If batteries get better and cheaper, it could blow RayGen’s business model. “No one really knows. There is massive innovation,” said Professor Bruce He Mountain, director of the Victorian Energy Policy Center. (RayGen claims that costs will also drop over time.)
But no one knows what the green grid will look like. Different forms of storage may be required to keep energy online at different times of the day.
Professor John Cuigin, senior economist at the University of Queensland, said:
The project is backed by $15 million in funding from fossil fuel giants Schlumberger, Chevron and AGL. taxpayer funds From the Australian Renewable Energy Agency.
A $30 million pilot plant is currently producing electricity and hopes to roll it out nationwide. His 3.6 gigawatt project in full swing was announced last year in South Australia.When it’s done, it’s World’s largest energy storage plant Other than pumping.
“It’s a great piece of technology and very interesting. “But you have to try something. You have to try.”
age As a company guest, I traveled to RayGen’s Carwarp project.
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Renewable Mildura power plant built by RayGen to provide energy solutions
Source link Renewable Mildura power plant built by RayGen to provide energy solutions