AORA Solar raises $5m for solar thermal technology

AORA Solar, a Yavne, Israel-based developer of solar thermal technology, announced today it has closed a $5 million Series A funding round led by EZKlein Partners, EDIG Construction, and L&Q Solar, a group of international solar energy investors.

Aora, formerly known as EDIG Solar, will use the funds to commission a commercial hybrid solar thermal gas-turbine power station, expected to begin operations by the end of March in Kibbutz Samar in Israel's Arava region. Work has already started on the half-acre site, which is expected to have the capacity to produce 100 kilowatts of electricity and 170 kilowatts of heat, said Shimon Klein, managing partner of EZKlein, as reported by Cleantech Group.

Funds will also be used to develop manufacturing capabilities and market expansion and to further R&D efforts.

"We believe that Aora's technology will be a ‘game-changer' in the solar thermal energy sector as it will seize market share from the companies which propose to build giant, remotely located solar thermal power plants," said Shimon Klein.

COO Yuval Susskind told Cleantech Group that the company is targeting an untapped market that's less impacted by the current credit crunch than massive installations, such as those planned by BrightSource Energy.

"The solar industry is segmented into two themes: there's the photovoltaics that you put on homes, and on the other hand there are the huge solar companies out in the desert," Susskind said. "In the middle there's nobody working on providing 100 kilowatts to 5 megawatts of solar thermal and doing it close to people's homes."

AORA's system consists of a field of mirrors that track the sun, focusing sunlight onto a proprietary 30-meter high tower that contains a solar receiver that heats air to 1,000 degrees Celsius and water to 80 degrees Celsius. The heated air is used to run a standard 100-kW gas turbine engine. The electricity and heated water can then be sold to utilities or industrial clients.

The plants are expected to run 24 hours a day, using the hybrid gas turbines to generate power during the night or inclement weather. The turbines can operate on a variety of fossil fuels and biofuels, including diesel, gasoline, natural gas and biodiesel.

AORA plans to use part of the new capital to further R&D and start its manufacturing plant for the power conversion unit and turbine in Israel. Other components of the plant would be off-the-shelf products, Klein said. In six months or so, AORA plans to seek $10 million to $50 million in additional funding to scale the manufacturing and operations, Susskind said.

AORA plans to derive revenue from selling the proprietary components and partnering with local companies to get the solar projects built around the globe. The company has completed a pilot unit in Nanjing, China, as reported by Cleantech Investing in Israel in this post last year.

AORA recently changed its name from EDIG Solar. Founded last year, the company is based on technology developed by Prof. Jacob Karni, director of the Center for Energy Research at the Weizmann Institute in Rehovot, Israel.

Susskind said he has ignored calls to move the business to Silicon Valley, at least while the business is at its early stage with just six employees.

"We're here because the climate is good for solar technology, and a lot of academic knowledge is being developed in solar," he said. "Being here right now is the best place to be for this stage of our company. All the brightest minds are here."

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Arava Power solar project approved for Negev Kibbutz

Edig Solar provides hybrid solution for cloudy days

Arava Power solar project approved for Negev kibbutz

Israel's Public Utilities Authority (Electricity) has approved the application of Arava Power Company for a license to build a 4.9-megawatt solar power plant at an 20-acre site at Kibbutz Ketura in the Negev. The project will cost NIS 100 million ($26 million), according to a report in Globes, and will use both photovoltaic (PV) and solar thermal technologies.

The Public Utilities Authority plenum approved the conditional license for Arava Power to produce electricity, and sent it to Minister of National Infrastructures Benjamin Ben-Eliezer.

"This is an historic day for renewable energy in Israel," Arava Power Company president Yosef Abramowitz said in a statement. "For the first time, a large solar project is being launched that will be connected to the national grid, with many more megawatts on the way in the coming years. The Public Utility Authority is making a reality Ben-Eliezer's dramatic decision to produce thousands of megawatts of electricity from renewable sources by 2020."

The first solar installation of 100 kilowatts will be built by Edig Solar, according to the Jerusalem Post. Edig Solar uses solar thermal technology developed at the Weizmann Institute of Science in Rehovot. The plant is expected to become operational in March.

Arava Power has signed cooperation agreements with 15 kibbutzim, including Ketura and Yotvata, that own land available sufficient for the production of up to 500 megawatts of electricity at photovoltaic farms. The company predicts that a total of over 20 kibbutzim will join the venture this year.

Kibbutz Ketura owns 40% of Arava Power, and a group of US investors, led by company president Yossi Abramowitz, own the rest. Arava Power plans on announcing its brand-name institutional investors by February 1st, 2009.

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Edig Solar provides hybrid solution for cloudy days

EDIG Solar provides hybrid solution for cloudy days

Israel21c reports that Israeli company EDIG, through its subsidiary EDIG Solar, plans to make solar energy a viable power alternative through the use of low-cost hybrid generators. By using a hybrid power plant, on rainy days the company's solar turbines can switch over and run on traditional or alternative fuel.

"It's modular, meaning it can easily be increased in size, and it is flexible in terms of fuel use. It can be powered by bio-diesel, bio-gas or fossil fuels," explains the company's CTO Pinhas Doron, an engineer.

Based on the research of Prof. Jacob Karni, director of the Center for Energy Research at the Weizmann Institute in Israel, EDIG's technology attracts the sun and concentrates it by way of tiny mirrors on the ground.

The thermal energy generated by the sun drives turbines in a tower, the same turbines that can be powered by traditional fuel, the moment a cloud passes overhead, or at night when the sun sets. And in doing this, "our hybrid solution addresses the issue of intermittency of solar radiation," says Doron.

EDIG recently built a 100 kW pilot plant demonstration unit in Nanjing, China. It included a power conversion unit (a solarized gas turbine and a solar receiver), which was installed on a tower, and a field of heliostats (sun-tracking mirrors). The unit was fully operational and supplied power to the local electric grid, says Doron. "We proved our concept - we connected to the grid and operated seamlessly," he reports. The next step is building a plant in Israel's Arava Desert, which should be ready by next year.
While the company is not reinventing the "solar" wheel, its IP rests in at least two areas, says Doron. It's solar "receiver" is based on patented Weizmann technology, and the modifications on the turbine, which allows it to switch energy sources and at high temperatures, without the user noticing it, was difficult to overcome.

For more information on EDIG Solar, see the rest of this article from Israel21c.