How Much Energy Storage Do You Need to Back Up the London Array?

Storing electricity underwater in the form of compressed air is a tantalizing notion that could, if it works, help solve the intermittency problem of wind, solar, and other renewable sources. That “if” is a big one, though, because there are many details engineers have yet to nail down for underwater compressed-air energy storage (UW-CAES). One company that’s been trying to nail down those details is the Canadian start-up Hydrostor. I recently wrote about its plans to deploy the world’s first commercial UW-CAES system in Lake Ontario. The Hydrostor system will use electricity from the Toronto Hydro power grid to run a compressor; the compressed air will then be stored in flexible energy bags submerged at a depth of about 80 meters. Later, the air will be run through a turbine when the energy is needed. For all that effort, the system will be able to supply just a megawatt of electricity for up to three hours. Eventually, the company is aiming for a capacity of 20 to 30 megawatts that can be discharged over 10 to 20 hours. But a big wind or solar farm would require a lot more storage than that.. cont'd.

SEIA: Future Unclear Despite WTO Ruling in China Solar Trade Case

WASHINGTON, D.C. – In a significant ruling handed down today, a panel of judges at the World Trade Organization (WTO) accused the United States of violating global trade rules when it imposed punitive import duties in 2012 on many Chinese products, including solar panels. After the decision was announced, Rhone Resch, president and CEO of the Solar Energy Industries Association (SEIA), issued the following statement:  "We are continuing to follow developments closely, but today's WTO decision is not expected to impact either the 2012 U.S. solar countervailing duty (CVD) order against China or any new CVD tied to the ongoing investigation until 2016, at the earliest. It's also important to remember that this decision is subject to an appeals process, which could take approximately 120 days. Assuming the decision is upheld on appeal, the United States would then have approximately one year to implement the decision. But even then, it's not clear whether the decision will result in any substantive modification of a solar CVD order against China."

Is Texas Souring On Wind Power?

Texas has more wind power generation than any other state, so it’s only fitting that Texas regulators are starting to ask some tough questions about wind power subsidies. The head of the state’s Public Utility Commission, Donna Nelson, is calling for a study to consider whether wind generators should start paying their share of transmission costs. Texas already invested $7 billion in high-capacity power lines that the state built to connect West Texas wind farms with the more populous cities in the east — such as Dallas and Houston. But wind power, as an intermittent resource, can create additional transmission costs, and those costs are borne by all the electricity customers in the deregulated market, which is about 85 percent of the state. Part of the study will determine the amount of the extra transmission costs and what, if any, remedy is needed, a PUC spokesman said. Wind power developers warn that making wind companies pay the same transmission rates as other generators will destroy Texas’ lead in wind power and undermine the economics of wind generation. Nelson, however, claims that giving wind companies a pass is no longer necessary because the industry has been around long enough to figure out its economics.

Intersolar AWARD ceremony honors innovators and exemplary projects in North America

The Intersolar AWARD ceremony honored true innovators whose projects displayed the latest design and technology advancements in the solar industry. Three winners were named in the Solar Projects in North America category in front of a large crowd at the Innovation & Application Stage. They were judged on pioneering character, uniqueness, economic benefits, benefits for the environment and society, degree of technical innovation and proof of innovation. An independent committee of industry experts chose the Agua Caliente Solar Project by First Solar; the Whole Foods Solar Carport by Solaire Generation and the Alcatraz Island Micro-Grid by Princeton Power Systems.     As a media partner AltEnergyMag.com will be covering Intersolar and bringing all the industry news and exciting new products to our eMagazine to help our readers make sense of the massive event. Make sure to check out our special  Intersolar 2014 Newspage  for Exhibitor news. Check out our Intersolar 2014 Tradeshow Report here.

Intersolar North America: Exhibition opens doors

From PV Tech:  Intersolar North America opens its exhibition doors today off the back of a bumper year of PV installations in the US. With conference sessions kicking off in San Francisco on Monday, attention today will turn to the exhibition halls, where optimism among visitors is understandable despite warnings of complacency. At the official opening of Intersolar North America on Monday evening, Governor Jerry Brown stressed that while California had made great strides in improving its sustainability, there was still much work to be done with solar playing an important role in that future. “We have to invent not just gadgets, but keep our eye on the big goal. The big goal is to build a more equitable and just society…and that’s why solar is so important,” said Brown.    As a media partner AltEnergyMag.com will be covering Intersolar and bringing all the industry news and exciting new products to our eMagazine to help our readers make sense of the massive event. Make sure to check out our special  Intersolar 2014 Newspage  for Exhibitor news.

IBM Research Launches Project "Green Horizon" to Help China Deliver on Ambitious Energy and Environmental Goals

IBM has announced that it is deploying the full force of its researchers in laboratories around the world in a 10-year initiative to support China in transforming its national energy systems and protecting the health of citizens.  Dubbed "Green Horizon", the project sets out to leap beyond current global practices in three areas critical to China's sustainable growth: air quality management, renewable energy forecasting and energy optimization for industry. Led by IBM's China Research laboratory, the initiative will tap into the company's network of 12 global research labs and create an innovation ecosystem of partners from government, academia, industry and private enterprise.  One of the first partners to come on board is the Beijing Municipal Government. Through a collaboration agreement, the two parties have agreed to work together to develop solutions which can help tackle the city's air pollution challenges. The collaboration will leverage some of IBM's most advanced technologies such as cognitive computing, optical sensors and the internet of things all based on a Big Data and analytics platform and drawing on IBM's deep experience in weather prediction and climate modelling.  "China has made great achievements and contributed much to the world's economic growth over the past 30 years. It now has an opportunity to lead the world in sustainable energy and environmental management," said D.C. Chien, Chairman and CEO, IBM Greater China Group. "While other nations waited until their economies were fully developed before taking comprehensive action to address environmental issues, China can leverage IBM's most advanced information technologies to help transform its energy infrastructures in parallel with its growth." 

India's Solar Power Dreams on Hold

India's plans for a major ramp-up in solar power are on hold after a proposal to impose anti-dumping duties on equipment from overseas has led developers to say proposed projects would become unprofitable. Industry officials say imports of solar equipment worth millions of dollars that were in the pipeline from U.S., China, Taiwan and Malaysia are now unlikely to come to India anytime soon. India had been planning to raise solar power generating capacity nearly tenfold by 2022 to help wean itself off heavy imports of oil and gas that contribute to a chronic trade deficit. The sector has been booming in recent months too, as the cost of imported solar equipment has dropped sharply. But the commerce ministry is now proposing duties on goods from overseas to protect local manufacturers from being overwhelmed by the cheaper imports. The finance ministry will take a final decision on the proposal by Aug. 22. Any tariff proposal is set to fuel tensions between India and U.S., with trade relations already at a flash-point as the World Trade Organization deliberates a India-U.S. dispute over a rule that mandates local sourcing for some government-backed solar projects.

Wind Power Service Market to Almost Double by 2020: Make

The market for servicing wind turbines will almost double by 2020 as capacity grows, the Danish advisory firm Make Consulting said.   Annual revenues from monitoring and repairing wind turbines may surge to more than $13 billion in 2020 from $7.1 billion last year, Aarhus, Denmark-based Make said today in a report. It projected that 300 gigawatts of capacity will be installed through 2020, doubling current generating capacity and boosting the needs for maintenance.   Turbine manufacturers including Vestas Wind Systems A/S (VWS) and Gamesa Corp. (GAM) Tecnologica SA are ramping up efforts to secure service contracts, which Vestas says yield higher margins than turbine sales and increase profitability. More than half of servicing worldwide is carried out by turbine manufacturers, Aaron Barr, a consultant at Make in Boston said in an e-mail.   Manufacturers “are attracted to the services market due to reliable and repeatable high margin revenue, primarily due to the growing fleet of serviceable wind turbines,” Barr said. “This focus is reinforced by uncertainty on new turbine sales orders and technical competitive advantages” that they have over independent service providers and the utilities that own the wind farms.

OutBack Power Debuts Next Generation Grid/Hybrid Solar to the Builder Community

OutBack Power Technologies, Inc., a designer and manufacturer of advanced power electronics for renewable energy, backup power and mobile applications, will showcase its newest Radian Grid/Hybrid solar systems at PCBC, June 25 to 26 in San Francisco. Supported by smarter technology, including the new GridZero Radian inverters, energy storage options, and OPTICS RE mobile monitoring and control application, these next-generation solar systems deliver both renewable economics and energy independence to homeowners, installers and builders. The result is increased customer satisfaction through reduced anxiety concerning solar investment in the midst of changing utility policies, and remote system control for installers reducing the need for costly service calls.  Until now, solar users fell into two categories: off-grid, but with limited electrical use; and grid-tied with the ability to save money when the sun is shining, but with no option for power during outages or emergencies. OutBack Power's Grid/Hybrid systems with energy storage offer the best of both worlds: Homeowners can choose to go off-grid and store unused energy for future use, or use the grid as their backup when they need extra electricity beyond what their system can produce. 

Crowdfunding campaign raises $2.2M to build solar roadways

It's crazy. It'll never work. They cost too much. They'll crack. They're too delicate. You'll slide off them. Oil companies will never let it happen. Scott Brusaw, an electrical engineer from Idaho, has heard it all before. Over the past eight years, skeptics (like this one) have been telling him his concept for solar roadways — replacing America's roads with solar panels, creating a power grid where pavement used to be — won't work. But Brusaw suddenly has a reason why it will — actually, 2.2 million of them. Solar Roadways' crowdfunding campaign, which closed on Monday, raised $2.2 million — more than double what Brusaw was seeking — in just two months. The campaign, the most popular in Indiegogo's history, attracted more than 48,000 backers from all 50 states and 165 countries. "It's been humbling," Brusaw, 56, told Yahoo News. "Really, really humbling." The success can be attributed, in part, to a cheeky seven-minute video ("Solar FREAKIN' Roadways!") that has been viewed more than 16 million times on YouTube.

China Might Be Winning The Race To Reduce Solar Costs

Many people, even fanatical advocates of solar power, are unaware quite how close we are to reaching a critical milestone in the industry. Within a fairly short space of time, solar generated electricity will be fully cost competitive with coal-powered electricity -- at least if the governments of the world’s two largest energy consuming nations have their way. Both the U.S. and China have a stated goal of reducing the cost of solar generated electricity to that level, and quickly. How they are going about it says a lot about how each economic system works. In the U.S., despite the complaints of some that a drift toward government control is taking place, private initiative and free markets still rule. The Department of Energy launched the SunShot initiative in 2011, with a stated goal of reducing the cost of solar power to be fully competitive with conventional energy sources by the end of this decade. The program funds grants, incentives and competitions to encourage private sector research that will improve the efficiency and lower the cost of solar energy. The Chinese, faced with what is in many ways a more urgent need to achieve the same thing, have taken a different approach. In a manner more in keeping with their history and current economic system, they are beating the problem over the head with piles of cash until the desired outcome is achieved. It looks, if this excellent Michael Sankowski piece at Monetary Realism is to be believed, as if they are getting mighty close.

Massachusetts to open area the size of Rhode Island to offshore wind power

Massachusetts Deval Patrick and U.S. Interior Secretary Sally Jewell announced plans for a new proposed offshore wind power area of more than 742,000 acres, or 1,160 square miles, which would make it about the size of Rhode Island (1,214 sq-miles). This new area, where space would be auctioned in 4 different leases, would nearly double the federal offshore acreage available for large wind energy projects. Secretary Jewell said that the government has learned from the Cape Wind offshore wind project in Nantucket Sound, which faced over a decade of opposition and lawsuits, and have picked a spot farther from the shore that should not be as contentious. "We put in zones that we believe have both high potential and lower conflict," Jewell said. "But it's going to actually get down to a specific construction plan on a specific site and (an environmental) analysis to determine what people want to do economically and what that impact is going to be.  

SolarCity is trying to become the Apple of solar power

SolarCity is already the largest installer of residential solar panels in the United States. Now the company is going a step further, buying up solar manufacturer Silevo and planning to build one of the world's biggest solar-panel factories in upstate New York. The immediate goal here is vertical integration. The company, which was co-founded by Tesla CEO Elon Musk, wants to handle all aspects of the solar supply chain, from design to manufacturing to sales to installation. It's basically the Apple model — only for solar panels. But SolarCity's ultimate aspiration is to drive down prices dramatically. In a call on Tuesday, Musk said that the aim was "to have solar power compete on an unsubsidized basis with fossil-fuel energy from the grid." (The company was also founded by brothers Lyndon and Peter Rive, who currently run it.) Is that doable? SolarCity has had success with its current business model — offering rooftop solar systems at no upfront cost to customers who make monthly payments spread out over many years. The company now handles 25 percent of all US residential solar installations — and is aiming for 1 million customers by 2018. This latest move means SolarCity will be able to produce its own panels for these systems and try to lower its costs even further.  

New Report Finds Thermal Energy Storage Could Add Value To Solar Energy

A new report from NREL, the National Renewable Energy Laboratory, could help spur the development of more utility scale concentrating solar power plants with thermal energy storage features while boosting the market for solar cells, too. The report indicates that CSP/energy storage projects could add value to utility scale solar energy in California, and they would enable more solar cell development by creating additional grid flexibility. California’s ambitious renewable energy goal for 2020 also plays a key role, so keep in mind that the NREL added-value findings for thermal energy storage are transferable to only to other states with similar aspirations.  

Residential Energy Generation and Storage Will Reach $71.6 Billion in Annual Revenue by 2023, Forecasts Navigant Research

Solar photovoltaic (PV) panels, which enable customers to generate some of their own electricity and sell unneeded power back to their utility, are the most visible form of the broad disruption caused by distributed energy resources (DER). The growing affordability of DER technologies is altering utilities’ traditional relationship with residential customers by giving customers greater control of their energy consumption. According to a new report from Navigant Research, worldwide revenue from all forms of residential distributed generation and energy storage will grow from $52.7 billion annually in 2014 to $71.6 billion in 2023. “Rooftop solar PV is just one of the technologies that are transforming the traditional residential power industry,” says Neil Strother, principal research analyst with Navigant Research. “Some of these technologies, such as residential combined heat and power, are in the early stages of market development, while solar panels are more mature. Nonetheless, these energy innovations and attractive financing mechanisms provide residential customers with new options.”   One key driver for this sector, according to the report, is continuing advances in new technologies, such as more efficient energy storage systems (ESSs). These advances, along with government subsidies for ESSs, often in the form of feed-in tariffs, are enabling the combination of rooftop solar PV systems and residential energy storage in order to collect and store energy for use when sunlight is unavailable or there is a power outage.  

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