Preparing the grid for large-scale renewables.
With large solar arrays and wind farms being proposed to connect to transmission and sub-transmission systems, are utility companies sufficiently prepared to handle the challenge of integrating these large intermittent resources? The industry now must decide whether transmission reliability factors — most notably dynamic voltage support and system frequency management — need to be resolved by renewable generators, or whether they should become a cost of doing business for transmission providers and reliability coordinators.
Integrating distributed resources into the smart grid.
The remedy for America’s gravest economic woes may lie in a smart grid that can deliver vast amounts of clean, renewable energy while enhancing our energy security and democratizing our energy system. Although regulatory questions and technical challenges might dominate the industry’s short-term focus, the smart grid’s driving forces parallel America’s long-term national interests — a fact that should guide ongoing technology strategies and investment decisions.
Why the green grid might do better without open access.
Are the Feds at war with green power development? You might have thought so, if you had sat through the conference held March 15, 2011, at the Federal Energy Regulatory Commission, where the consensus seemed to be that FERC’s policy of granting open-access rights on electric transmission lines is problematic for green power projects. In short, when wind and solar developers choose to build their own local tie lines to link their projects to the larger grid, FERC policy forces them to make extra line capacity available to rival developers. That requirement doomed the novel Wind Spirit Project, and continues to complicate the job of project financing.
Green energy mandates might overburden gas pipelines.
By Diane A. Rigos, Boris L. Shapiro and Richard L. Levitan
Market rules could evolve to compensate gas suppliers for pressurizing pipelines when needed on short notice. Enhanced ancillary services will require innovative strategies using line pack in interstate pipelines and stepped up communication among gas and electric market participants to preserve reliability objectives in gas and electric markets.
Lockheed Martin teams with Tendril; Pattern Energy 101 MW wind plant starts operating; Alstom to supply steam equipment to GWF plant; Siemens wins government efficiency contract; GE Jenbacher introduces high-efficiency gas engine; OpenADR Alliance forms; Better Place gets into San Francisco taxis; EnerNOC enters TransAmerica Pyramid; and more.
In-state green mandates face Constitutional challenges.
By Richard Lehfeldt, Woody N. Peterson, and David T. Schur
In effort to promote local green energy resources, some states are enacting policies that tread on federal authority. Restrictions on power imports to satisfy RPS requirements might violate the Commerce Clause of the U.S. Constitution. Can the states foster home-grown energy without running afoul of federal laws?
(October 2010) AWEA’s manager of transmission policy refutes author Robert Blohm’s assertion that renewable power exacerbates America’s growing problems with frequency response.
Forecasting brings wind energy under control.
Advancements in forecasting have improved the reliability of day-ahead and hour-ahead estimates of wind generation. Wind never will behave like a base-load power plant. But as system operators integrate wind forecasts into their planning and market processes, they’re transforming intermittent wind energy into a variable but reliable resource.
(November 2009) El Paso Electric promoted George A. Williams to senior v.p. and COO. Idaho Power promoted Darrel Anderson, IDACORP and Idaho Power’s senior v.p. of administrative services and CFO, to executive v.p. of administrative services and CFO. ConEdison Solutions hired Jim Mueller as v.p. of customer operations. Exelon Corp. appointed John Stough as v.p. and chief development officer for Exelon Transmission Co., a new venture on transmission lines. And others...
Transmission expansion costs are spread unevenly, driving a wedge between utilities and regions.
Back in June, the Bismarck Tribune ran an interview with North Dakota Public Service Commissioner Tony Clark that showed just how difficult it is to build national consensus for renewable energy.