Wind

Renewable energy projects installed on potentially contaminated lands, landfills, and mine sites have increased by 40% since 2008, a new list released last week by the Environmental Protection Agency (EPA) shows. Solar photovoltaic (PV) systems make up the bulk of about 184.7 MW installed at 60 sites in 25 U.S. states.

The first problem with high renewable penetration is that wind and solar are not dispatchable.

The California Public Utilities Commission (CPUC) last week approved a deal involving the state’s major utilities and renewable energy advocates that is  aimed at streamlining the process for connecting distributed generation (DG) resources to the grid. The CPUC’s action will make it easier for small amounts of distributed resources—such as rooftop solar photovoltaic (PV) systems—to connect to the grid. The agreement also revises upward the amount of DG that can be connected to a specific power line segment without the need for supplemental studies.

Congress has returned from its summer break. As the House prepares to vote on its Upton-Stearns "No More Solyndras Act," lawmakers also expect to focus on a bill that could prohibit finalization of any Environmental Protection Agency (EPA) power plant rules that curb greenhouse gas emissions while carbon capture and storage technology is commercially unavailable. House Democrats, meanwhile, called for hearings to examine the impacts of climate change on the nation’s generators.

Droughts, unreliable gas imports, and protests against proposed projects have hampered the Chilean power sector and its largest economic driver, the copper-mining industry. Recent policies designed to foster more reliable supplies are a move in the right direction, but remaining obstacles are formidable.

Bonneville Power Administration is torn between delivering the tremendous amount of inexpensive hydroelectric power produced in its region and a rapidly growing wind energy industry that has been ordered to reduce generation when hydroelectric plants are dispatched to protect fish habitats. Which renewable energy asset will win?

The U.S. Trade Representative on Monday asked the U.S. International Trade Commission (ITC) to investigate how U.S.-provided renewable energy services affect development of renewable energy projects worldwide. The ITC’s report, expected by June 28, 2013, will focus on the development, generation, and distribution of renewable energy—specifically onshore and offshore wind and solar energy.

The Federal Aviation Administration (FAA) issued a determination on Wednesday that finds construction of Cape Wind’s 130 wind turbines in Nantucket Sound, Mass., would pose no hazard to air navigation. The decision was issued as a congressional House committee probes whether the FAA disregarded safety concerns when it issued a prior approval of the nation’s first offshore wind project.

A new report from the Department of Energy (DOE) highlights sizeable increases in U.S. wind power capacity and recent improvements in the cost and performance of wind power technology, but it says the U.S. continues to trail several countries in wind energy penetration and warns that the industry is facing "serious federal policy uncertainty" looking into 2013 and beyond.

Solid oxide fuel cells (SOFCs), which oxidize a fuel to produce electricity, have received much attention of late for the technology’s myriad benefits, including high efficiency, long-term stability, fuel flexibility, and low carbon emissions—all at a relatively low cost.

Siemens Energy in June announced it had produced the first batch of its new B75 Quantum wind turbine rotor blades, fiberglass components 75 meters (m) in length that were cast in one piece (Figure 3). The blades were manufactured to be installed this fall on Siemens’ second prototype of the German firm’s SWT-6.0 6-MW offshore […]

The environmental push for renewables and mandates to force them into existence are rightly facing some serious headwinds. The American Renewable Energy Production Tax Credit Extension Act of 2011 foundered in Congress, and more states are experiencing significant power rate increases to cover renewable energy production costs. While renewables are generally not ready for prime time in large quantity on today’s power grid, that doesn’t mean environment concerns ought to be trashed, especially when a more effective off-the-shelf solution is available.

Two Republican lawmakers are probing whether the Federal Aviation Administration (FAA) disregarded safety concerns and approved the Cape Wind project—the nation’s first offshore wind project—for political reasons.

The Department of the Interior (DOI) on Monday announced the release of final environmental impact statements for a proposed wind power complex in Wyoming with a nameplate capacity of 3,000 MW and publication of an environmental assessment for commercial wind leases and site assessment activities on the Outer Continental Shelf (OCS) offshore Rhode Island and Massachusetts.

The Federal Energy Regulatory Commission (FERC) has the responsibility for ensuring just and reasonable rates and preventing undue discrimination by public utility transmission providers. Last year FERC defined a new framework for public utilities and regional transmission organizations planning new transmission networks. The framework is provided in Order No. 1000—Transmission Planning and Allocation by Transmission Owning and Operating Public Utilities. The Final Rule was issued on July 21, 2011, and reaffirmed by Order No. 1000-A on May 17, 2012.

India’s long-term annual economic growth rate is projected at over 7%, and the country is investing in its hydroelectric, nuclear, and renewable resources. However, the primary fuel used to produce electricity remains coal, and the government has ambitious plans to significantly increase coal-fired capacity. Those plans have been challenged by a number of unexpected factors that threaten to stifle India’s economic growth. India’s long-term annual economic growth rate is projected at over 7%, and the country is investing in its hydroelectric, nuclear, and renewable resources. However, the primary fuel used to produce electricity remains coal, and the government has ambitious plans to significantly increase coal-fired capacity. Those plans have been challenged by a number of unexpected factors that threaten to stifle India’s economic growth.

Panelists at ELECTRIC POWER discussed how U.S. utilities choose renewable power generation technologies based on their geographic locations, state requirements, economics, and other criteria—including reliability and federal regulations.

Denmark’s parliament in late March agreed to a new energy strategy seeking to wean the country off oil and gas. It could result in the Nordic country cutting its greenhouse gas emissions 34% by 2020, compared to 1990 levels, and decreasing energy consumption by more than 12%, compared to 2006.

Spanish wind turbine manufacturer Gamesa on Monday said it would start the permitting process for the installation of its first offshore prototype, the 50-Hz G128-5.0 MW at Arinaga Quay in Spain’s Gran Canary Island—not Cape Charles, Va., as it had initially proposed. The decision was driven by technical and wind resource considerations, offshore market trends, and investment return criteria, the firm said.

The UK opened two massive offshore wind farms this February on the Irish Sea off the UK’s Cumbrian coast. DONG Energy, SSE, OPW, and a consortium of Dutch pension fund service provider PGGM and Ampere Equity Fund began commercially operating the 367-MW Walney wind farm, estimated to cost $1.58 billion, and Danish wind firm Vattenfall inaugurated the Ormonde Offshore Wind Farm.

Chinese state entity State Grid Corp. of China (SGCC) and battery maker BYD in January said they had finished construction on what they call “the world’s largest battery energy storage station”—a project in Zhangbei, Hebei Province that combines 100 MW of wind and 40 MW of solar capacity, a smart power transmission system, and 36 MWh of energy storage in arrays “larger than a football field.”

For the past 15 years, Vietnam has enjoyed enviable gross domestic product increases, averaging 7% annually. That kind of economic growth increases power demand, but financing new capacity remains a challenge. Reaching its ambitious capacity growth goals will require Vietnam to expand its financing and vendor base, attract foreign investment, and ensure future fuel supplies in a region thick with competition for those resources.

Of the $35.9 billion in loan guarantees awarded by the U.S. Department of Energy (DOE) since 2009, roughly $26.5 billion have financed nuclear and renewable power projects across the nation through the Section 1703 and 1705 loan guarantee programs.

A consortium of European developers, with funding from the German federal government, have completed a power plant in Prenzlau, near Berlin, Germany, that uses excess wind energy to convert water into oxygen and hydrogen in a process called hydrolysis, and then uses hydrogen and biogas to generate power and heat.

A semi-submersible structure supporting a 2-MW wind turbine was towed nearly 350 kilometers (217.5 miles) to water depths of about 35 meters (114.8 feet) into open Atlantic waters and deployed off the coast of Aguçadoura, Portugal, last November.

Brazil’s power industry has long been dominated by its vast hydro resources, which historically have accounted for over 80% of the country’s generation capacity. With engineering marvels like the massive Itaipú dam and the proposed Belo Monte project, the country is a leader in the development and use of hydroelectricity on a grand scale. But as the 2001 energy crisis proved, dependence on a single source leaves the country vulnerable to severe shortages. Thanks to government programs designed to take advantage of the country’s favorable climate, Brazil is committed to diversifying its energy mix while continuing to maintain a renewable energy focus.

The POWER editorial staff’s picks for the most significant stories of 2011.

Driven by policies to limit carbon emissions, as well as government subsidies, the share of worldwide nonhydro renewable power is set to grow from just 3% in 2009 to 15% in 2035, the International Energy Agency (IEA) forecasts in its recently released World Energy Outlook 2011. Under the same scenario—which assumes that carbon pricing, explicit […]

U.S. optimism has been restored by reports of abundant, reasonably priced natural gas to fuel most new generation; however, huge gaps in the fuel delivery system (thousands of miles of pipelines are needed) will soon challenge gas plant development. Meanwhile, the cloud of sovereign debt hangs over all major capital projects in Europe, where the UK moves ahead with new nuclear projects while many of its neighbors shut the door on nuclear and struggle to finance their commitment to renewables.

The technologies used to generate and distribute electricity will be radically transformed during the coming decade. Amid that change, the power industry must continue to meet customer reliability, safety, and cost-of-service expectations. Achieving the right balance among these often-conflicting goals is the primary focus of every utility. The Electric Power Research Institute is helping utilities achieve that balance with R&D programs for many new and emerging technologies.