Manufacturers scale up for utility applications.
Photovoltaics technology is emerging as a generation alternative—both for centralized and distributed facilities. Solar industry executives say their companies are overcoming obstacles to large-scale implementation. With advances in design and manufacturing, the future looks bright for utility-scale solar power.
Ultracapacitors and batteries work together to solve power quality problems.
Ultracapacitors and batteries work together to solve power quality problems.
Technologies are scaling up quickly to meet industry needs.
Like other California electric utilities, San Francisco-based Pacific Gas & Electric (PG&E) has been scrambling to meet the state’s renewable portfolio standard (RPS), which requires suppliers to obtain at least 20 percent of their power from renewable energy sources by 2010. Though the RPS includes a variety of technologies, renewables developers are choosing utility-scale solar power more than any other resource, says Hal La Flash, PG&E’s director of emerging clean technologies.
Rewards, challenges and options for rate-based investments.
Utilities traditionally have met renewable portfolio standards with power purchases from IPPs. But new approaches are allowing utilities to build their rate bases with investments in solar generation.
The future looks bright for distributed PV.
The future looks bright for distributed photovoltaics. New technologies and government policies are driving a revolution in PV manufacturing. But a robust national distributed generation system requires a grid that can accept two-way control of electrons.
Chris O’Brien is no starry-eyed idealist. An engineer with an MBA, he began his career developing fossil-fired power plants for the AES Corp. But in the 1990s his career took a different turn, when he launched the Energy Star program for the U.S. Environmental Protection Agency. After that, he went into the solar energy business, and never has looked back.
Effective metrics give solar its due credit.
Photovoltaic (PV) power generation is an intermittent, non-dispatchable resource generally considered as energy-only with no capacity credit. However, there is ample evidence that solar energy reliably is available at peak demand time when loads are driven by day-time commercial air conditioning, and can contribute effectively to increasing the capacity available on a regional grid.
Distributed solar modules are gaining ground on concentrated solar thermal plants.
Photovoltaic technologies are beginning to appear more attractive than concentrated solar thermal plants. PV’s competitiveness is improving from technical and operational advancements, as well as significant commitments made by such utilities as Southern California Edison. In the long run, distributed central PV plants likely will gain a strong market position.
States earmark millions to fund solar projects via system benefits charges.
Making solar power a realistic choice for electric consumers is a burgeoning issue for state utility regulators. As part of electric restructuring, regulators are trying to finance the costs of solar installations.
Key to delivering commercial, on-grid solar power to new markets are state efforts, partnered with other government and industry actions. So far, the system benefits charge, or SBC, is the primary short-term incentive to develop solar, wind, biomass and other renewable resources.