Renewables

Though most power generators and states might have preferred to not deal at all with a new rule regulating greenhouse gas emissions, the final Clean Power Plan (CPP), released August 3, gives most of the power industry most of what it asked for in terms of revisions to the 2014 proposed plan. In any regulatory […]

Ameren Missouri has dropped plans to build a second nuclear unit at its Callaway Energy Center, citing shaky economics in the context of cheaper renewables, low demand, and other factors for its decision. “While we continue to believe nuclear power must be an important clean energy source for our company and country, as evidenced by […]

Reaction from utilities, environmental groups, and governmental leaders following the August 3 release of the Environmental Protection Agency’s (EPA’s) final Clean Power Plan rule was mixed. Some, such as Duke Energy CEO Lynn Good, pointed to the progress that has already been made in recent years to reduce carbon dioxide (CO2) emissions, noting that the […]

Editor’s note (Aug. 3): Adds compliance cost details, key changes The Environmental Protection Agency’s (EPA’s) final Clean Power Plan will seek to tamp down the nation’s carbon dioxide (CO2) emissions from the power sector by 32% from 2005 levels by 2030—about 9% more ambitious than its original proposal. The first-ever final national standards to limit […]

Lower power and electricity certificate prices in the Nordic region have made two wind power projects in Central Norway—with a combined capacity of 1 GW—unprofitable, Statkraft said in June as it announced it would scrap them. Norway produces the bulk of its power from hydropower (Figure 3), but the country’s government has encouraged wind farm […]

The 335-MW Waneta expansion completed this June near Trail, British Columbia, adds a second powerhouse downstream of the Waneta Dam on the Pend-d’Oreille River, near the border between Canada and the U.S. (Figure 5). 5. Second powerhouse. The Waneta Expansion Limited Partnership this June connected the Waneta Expansion Project near Trail, British Columbia, to the […]

Dr. Ozgur Sahin, an associate professor of biological sciences and physics at Columbia University, who has helped develop a floating, piston-driven engine that generates power, most succinctly describes the

Despite wind power’s going “mainstream,” original equipment manufacturers and end users struggle to pin down quality standards for ever-evolving wind turbine component technologies. As more utilities embrace wind power, the U.S. wind turbine market has expanded tremendously over the years. It has proliferated into numerous facilities that specialize in the roughly 8,000 component parts that […]

Broad, bipartisan energy legislation that would allocate federal funding to grid technology research and demonstration along with a number of other initiatives, including cybersecurity and the energy-water nexus, has cleared the Senate Energy and Natural Resources Committee with an 18–4 vote.  The committee’s chair, Sen. Lisa Murkowski (R-Alaska), and Ranking Member Sen. Maria Cantwell (D-Wash.) […]

With the Environmental Protection Agency (EPA) expected to issue its final rule on power plant greenhouse gas emissions under the administration’s Clean Power Plan (CPP) early next week, reports strongly suggest the revisions will extend compliance deadlines in response to power sector complaints about a too-aggressive schedule in the proposed rule. A July 28 report […]

Renewables giant SunEdison will acquire emerging distributed energy firm Vivint Solar’s 523-MW rooftop solar portfolio in a $2.2 billion acquisition deal that signals momentum for the business model that has challenged the bottom lines of traditional utilities. SunEdison and Vivint Solar signed a definitive merger agreement on July 20. It will involve the acquisition of Vivint […]

Interstate Power and Light (IPL) will be forced to spend $620 million to retire 10 coal-fired units and retire, refuel, or install pollution controls at several others in Iowa under a settlement reached with the federal government.  The Alliant Energy subsidiary has long anticipated the settlement announced on July 15 by the Environmental Protection Agency […]

In a report released this week, M.J. Bradley & Associates found that in 2013 power plant SO2 emissions were 80% lower and NOx emissions were down 74% compared to releases in 1990—the year Congress passed major amendments to the Clean Air Act. The report, Benchmarking Air Emissions of the 100 Largest Electric Power Producers in […]

Many of the dangers existing at conventional power plants also threaten personnel in the wind and solar energy sectors. All workers can benefit by reviewing lessons learned and implementing corrective actions to improve health and safety performance. The expanding wind and solar energy sectors are not immune to industrial hazards affecting all energy generation markets. […]

Five of Germany’s largest lignite power plants will be mothballed to allow the country that is already phasing out nuclear power to meet ambitious climate goals by 2020.  In what it called a “milestone decision,” the government on July 2 agreed to scrap plans to impose a controversial—and by some accounts, illegal—climate tax for conventional […]

A new report from the Government Accountability Office (GAO) reveals surprising aspects about how federal subsidies for electricity have been distributed, how the power generation mix has shifted, and how consumption has transformed since 2001.  The June 29–released report, “Generation Mix has Shifted, and Growth in Consumption has Slowed, Affecting System Operations and Prices,” responds […]

Wind is no longer a niche alternative energy industry, American Wind Energy Association (AWEA) CEO Tom Kiernan told attendees at WINDPOWER 2015.  Despite policy hurdles, the wind sector has seen exponential growth and formidable cost reductions; it has the government’s endorsement for a low-carbon future; and it’s making up an ever-larger share of the nation’s […]

Concentrating solar power has found a partner in thermal storage, but costs remain high. Solar photovoltaic generation may have a partner in rapidly expanding battery options, but the economics are uncertain. Is there room for both approaches, or will one be crowded out? Battery storage is officially hip. Once a subject of concern largely only […]

Voters in Colorado and stakeholders in Minnesota forced through unique managed generation transformation plans that paved the way for aggressive state renewable and clean energy standards—inadvertently pushing their utilities out in front of proposed and now actual federal policies. As the power industry struggles with rising costs of adaptation, many beleaguered executives are anxiously focusing […]

Beacon Power to Supply Flywheels for Hybrid Alaska Energy Storage Project. Beacon Power on May 26 said it will supply flywheels for a hybrid energy storage project in Anchorage, Alaska, as part of an agreement

Australian firm Carnegie Wave Energy, operator of the Perth Wave Energy Project—the world’s first commercial-scale, grid-connected wave energy array—is on target to take its CETO technology to the next stage with a four-fold improvement on a dollar-per-MW basis, CEO Greg Allen said. The Perth Wave Energy Project employs three 10-meter-diameter buoys that generate about 5% […]

An innovative wind turbine concept currently in the prototype phase captures the energy of vorticity, an aerodynamic effect also known as the “vortex shedding effect.” As the wind bypasses a fixed structure, its flow changes and generates a cyclical pattern of vortices. Once these forces are strong enough, the fixed structure starts oscillating, may enter […]

The global hydropower sector has seen an upsurge in development activity lately, with installed capacity growing by 27% since 2004 (Figure 2), a new report from the World Energy Council (WEC) suggests. 2. World hydropower development. Hydropower development around the world stalled from 1999 to 2005, reflecting the impact of the World Commission on Dams, […]

The political impasse stalling investments in renewables in Australia was breached in mid-May after lawmakers reached an agreement to revise the renewable energy target (RET). After months of intense wrangling, the Coalition and Labor parties struck a deal to cut the RET to 33,000 GWh from the current 41,000 GWh. That figure is far more […]

For decades, renewable energy sources—primarily wind and solar—have been touted as the answer to continued reliance on fossil fuels. The technology has substantially improved, reducing unit costs, and state-imposed requirements have increased demand, enabling increased production to be sustainable. This expansion has come with the recognition that it also has environmental consequences. Wind farms threaten […]

Despite its apparent environmental benefits and strong government backing, generating power from landfill gas hasn’t gained traction for a variety of reasons in the U.S. Will the Clean Power Plan bolster this “dirty” renewable power source?  For the U.S. Environmental Protection Agency (EPA), the only clean thing about landfills—those engineered dumps that entomb America’s infinite […]

At least 25 of the European Union’s (EU’s) 28 member nations are on track to meet renewable energy targets, putting the bloc well on its way to meet its legally binding target of producing 20% of its energy with renewables by 2020, a new report shows.  The European Commission’s (EC’s) 2015 report released on June […]

Oregon-based utility and Berkshire Hathaway subsidiary PacifiCorp filed plans this month to shut down nearly 3 GW of its coal generation by 2033 as it moves toward greater integration with the California energy market. PacifiCorp’s 2015 Integrated Resource Plan (IRP), which it has filed with regulators in Oregon, Washington, California, Utah, Wyoming and Idaho, contains […]

At the annual Power-Gen Europe Conference held in Amsterdam, in the Netherlands, International Energy Agency (IEA) Executive Director Maria van der Hoeven called for greater leadership as Europe tackles de-carbonization, distributed energy, and market integration. She began her presentation by highlighting one of the biggest changes to Europe’s power markets: The May 20 decision to […]