Archive: Distributed Energy

[UPDATED] Viewpoints on the EPA’s Clean Power Plan Abridged

The Environmental Protection Agency’s (EPA’s) proposed carbon rules for existing power plants amassed more than 1.6 million remarks before the public comment period ended on Monday. Here’s a snapshot of what states, regulators, industry groups, and environmental alliances told the agency about its Clean Power Plan.  States Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New York, […]

SCE Signs Contracts for Record Amount of Energy Storage

Southern California Edison (SCE) signed contracts for more than 260 MW of energy storage resources on Nov. 5, among them what will be the largest grid-connected battery system in the world, a 100-MW facility supplied by AES Energy Storage. Under its mandate from the California Public Utilities Commission (CPUC), SCE was required to sign contracts […]


Before the polar vortex earlier this year, several severe cold weather events had presented comparable power generation operational challenges. POWER ranks those events here in terms of loss of generation capacity. Common themes observed in both severe and lesser cold weather incidents involve constraints on natural gas fuel supplies to generating plants, and generating unit […]

MHI Develops High-Efficiency 2-MW Gas Engine

Mitsubishi Heavy Industries (MHI) in August revealed that it had developed a 2-MW 16-cylinder high-speed gas engine that potentially offers a power generation efficiency (lower heating value) of more than

DOE Announces $8M to Improve Grid Resiliency

The Department of Energy (DOE) will designate $8 million for seven microgrid projects to help cities and towns better prepare for extreme weather events and other power disruptions. The funding will help develop advanced microgrid controllers and system designs for microgrids of less than 10 MW. Each projects includes a company cost-share, ranging from 20% […]

10 Energy Takeaways from the U.S.-Africa Summit

The Aug. 4–6 U.S.-Africa Leaders Summit shed light on the power plights faced by sub-Saharan African countries, but it also highlighted their massive power potential and the array of solutions under consideration to resolve Africa’s energy crisis. Here are a number of key insights gleaned from discussions at the summit—the first a U.S. president has […]

Texas and Germany: Energy Twins?

Geographically and politically, Texas and Germany are on opposite sides of the world, but both believe strongly in competitive energy markets, and both have largely deregulated their power industries. Now both are reconsidering their market designs. Its easy to think that Germany and Texas could not be more different. One is northern, cold, and Old […]

CPUC Opens Rulemaking for Distributed Energy Integration

Regulators in California last week initiated rulemaking to push the state’s three investor-owned utilities to incorporate distributed energy resources (DERs) into the planning and operation of their electric distribution systems. The California Public Utilities Commission’s (CPUC’s) Aug. 14 Order Instituting Rulemaking establishes rules, policies, and procedures to guide Pacific Gas and Electric, Southern California Edison, […]

A Spanish Island’s 100% Wind-and-Water Power Solution

El Hierro, the smallest island on Spain’s Canary archipelago, in June became what developers say is the first energy-isolated territory to power itself solely with renewables. The project, which was

Bright Future for Energy Storage

California has set an ambitious target of connecting 1.3 GW of energy storage to the grid by 2020. In October 2013, the California Public Utilities Commission (CPUC) mandated that 200 MW of this goal come in