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DOE Announces Goal to Cut Solar Costs by More than Half by 2030

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$128 Million in Additional New Solar Energy Initiatives Will Reduce Costs, Improve Performance, and Speed Deployment of New Solar Technologies

WASHINGTON, D.C. — The U.S. Department of Energy (DOE) today announced an ambitious new target to cut the cost of solar energy by 60% within the next ten years, in addition to nearly $128 million in funding to lower costs, improve performance, and speed the deployment of solar energy technologies. These investments support the Biden-Harris Administration’s climate goals and will pave the way for affordable decarbonization of the energy system and a robust clean energy economy.

“In many parts of the country, solar is already cheaper than coal and other fossil fuels, and with more innovation we can cut the cost again by more than half within the decade,” said Secretary of Energy Jennifer M. Granholm. “This first burst of funding will help us add even more affordable clean energy to the grid, jobs to communities across the country, and will put us on the fast track toward President Biden’s goal of 100% clean electricity by 2035.”

Lowering the cost of solar energy is essential to accelerating deployment and achieving President Biden’s goal of a 100% clean electricity grid by 2035. To reach that goal in the next 15 years, hundreds of gigawatts of solar energy need to be installed as much as five times faster than it is now. To that end, DOE is accelerating its utility-scale solar 2030 cost target by five years – setting a new goal of driving down the current cost of 4.6 cents per kilowatt-hour (kWh) to 3 cents/kWh by 2025 and 2 cents/kWh by 2030.

“To meet our bold zero emissions goals by 2035, we need to unleash major investment in solar energy and technologies,” said Senator Edward J. Markey. “I am excited to see the Biden-Harris Administration and the Department of Energy grant the Massachusetts Institute of Technology (MIT) this research and development funding today to help the Commonwealth scale up our clean energy deployment and innovation. This funding will be a bright spot for the Massachusetts clean energy economy and will help us lower costs, create jobs, and deploy more gigawatts of solar than ever before.”

“To combat climate change, America must put clean energy within the reach of every household. Today’s grant awards support research and development projects that will make solar panels more affordable and effective,” said U.S. Senator Ben Ray Luján. “I applaud the Department of Energy for making this strong investment in our energy future.”

“As Chairwoman of the House Science, Space, and Technology Committee, it is thrilling to see my constituents selected to advance technologies that will play a critical role in reducing greenhouse gas emissions from the electricity sector. Not only will these awards help the United States achieve the deep decarbonization needed to mitigate the growing impacts of climate change, but they will put many Americans in my district and around the country back to work in the midst of the COVID-19 pandemic,” said U.S. Representative Eddie Bernice Johnson, Chairwoman of the House Science, Space, and Technology Committee.

Traditional solar panels convert sunlight into electrical energy using photovoltaic (PV) solar technologies, which by 2035 could represent between 30% and 50% of electricity supply in a decarbonized electricity sector. Funding announced today through DOE’s Solar Energy Technologies Office (SETO) will support advancing two materials used to make solar cellsperovskites and cadmium telluride (CdTe) thin films.

  • $40 million for perovskite R&D: Perovskites are a family of emerging solar materials that have potential to make highly efficient thin-film solar cells with very low production costs. DOE is awarding $40 million to 22 projects that will advance perovskite PV device and manufacturing research and development—as well as performance through the formation of a new $14 million testing center to provide neutral, independent validation of the performance of new perovskite devices.   
  • $3 million Perovskite Startup Prize: This new prize competition will speed entrepreneurs’ path to commercializing perovskite technologies by providing seed capital for their newly formed companies.
  • $20 million for CdTe thin films: The National Renewable Energy Laboratory will set up a consortium to advance cheaper CdTe thin-film solar technologies, which were developed in the United States and make up 20% of the modules installed in this country. This consortium will advance low-cost manufacturing techniques and domestic research capabilities to increase opportunities for U.S. workers and entrepreneurs to capture a larger portion of the $60 billion global solar manufacturing sector.  

In addition, DOE announced $7 million as part of a new funding opportunity for projects to increase the lifetime of silicon-based PV systems from about 30 years to 50 years to lower the cost of energy and reduce waste. The aim is to improve PV system components, such as inverters, connectors, cables, racks, and trackers.

Today’s announcement also supports several concentrating solar-thermal power (CSP) projects. Unlike PV technologies that directly convert sunlight into electricity, CSP captures heat from sunlight and uses that thermal energy to spin a turbine or power an engine that then generates electricity.

  • $33 million for CSP advances: The new funding opportunity also includes funding for improvements to the reliability and performance of CSP plants, which can dispatch solar energy whenever it is needed; identifies new solar applications for industrial processes, which contribute 20% of U.S. carbon dioxide emissions; and advances long-duration thermal-energy storage devices. Long-duration energy storage is critical to decarbonizing the electricity sector and couples well with CSP plants, but the cost must fall by a factor of two to unlock deployment.
  • $25 million to demonstrate a next-generation CSP power plant: Sandia National Laboratories will receive funding to build a facility where researchers, developers, and manufacturers can test next-generation CSP components and systems and advance toward DOE’s 2030 cost target of 5 cents/kWh for CSP plants.

Consistent with DOE’s commitment to ensuring the benefits of federal funding reach diverse communities, applicants to the Perovskite Startup Prize and the PV/CSP funding opportunity must submit a Diversity and Inclusion Plan and propose measurable actions to increase the participation of underrepresented groups on their teams, in their research, and in the broader community.

Learn more about SETO and its research priorities in PV and CSP, and attend upcoming webinars on the open opportunities:

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