Can DC Microgrids be Simpler, Faster, Secure? Sandia, Emera Aim to Find Out

DC microgrids

In alternating current (AC) microgrids, there’s always the need to convert direct current (DC) storage, solar and other elements to AC. But with DC microgrids, all that could change -- and possibly reap simplicity, quickness, and cost savings, said Abraham Ellis, program manager for Sandia National Laboratories' renewable and distributed systems … [Read more...]

Ohio Trucking Terminal Installs Renewable Energy Microgrid

renewable energy microgrid

Regional trucking and logistics company Pitt Ohio is deploying a renewable energy microgrid at a trucking terminal in Parma, Ohio. Being built by WindStax and EnSync, the microgrid uses solar, wind power and battery-based energy storage to optimize on-site power and distribution for cost and reliability, based on Pitt Ohio's needs and utility … [Read more...]

Culver City, California Considers a Microgrid Following Move to Community Aggregation

microgrid

Culver City, California, better known as the home of movie studios, is setting the stage to host a microgrid, with a feasibility study underway by Willdan Group. The city plans to pursue the microgrid for two main reasons: “We want to save money and energy,” said Charles Herbertson, Culver City’s public works director and engineer. The city … [Read more...]

Non-Wires Alternatives: How Much, How Soon for Connecticut?

non-wires alternatives

States increasingly employ non-wires alternatives to tease out where distributed energy offers a better deal than traditional utility infrastructure – wires, poles, substations. But in Connecticut the idea is running into controversy. Utilities in the state say it’s too soon to press ahead with non-wires alternatives, while the state … [Read more...]

Microgrids Reside at the Core of Tribal Electric Utilities

microgrids

Microgrids lie at the technological core of efforts by two Native American Tribal Nations to develop local electric utilities and gain greater degrees of self-reliance and sovereignty. Not far from Oklahoma City, Fire Lake Energy -- a nascent tribal utility being formed by the Citizen Potawatomi Nation -- is developing a 10-MW microgrid. The … [Read more...]

US Power Outages Double…Ameresco Acquires Solar Firm…Green Slowdown in Puerto Rico?

power outages

US power outages double in EIA report The US grid is generally reliable, but severe storms are taking their toll and increasing power outages, according to the Energy Information Administration. EIA reported last week that power outages nearly doubled in 2017, which the federal agency attributed to hurricanes and winter … [Read more...]

Let’s Re-Design Wholesale Market Rules To Reap The Benefits of Solar and Wind: Report

wholesale power market

Making wholesale power market rules friendlier to solar and wind energy could bring numerous cost and flexibility benefits, said a new report from a non-profit dedicated to strengthening the U.S. economy with renewable energy. Even though the prices of solar and wind energy are lower in many areas than conventional options, grid operators … [Read more...]

Mississippi State to Install a Trigeneration Microgrid for Campus Development Project

trigeneration microgrid

Mississippi State University plans to build a trigeneration microgrid -- combined cooling, heating and power -- at its new College View student residential-retail building and campus development project outside Starkville. Project partners anticipate that the microgrid will save $116,000 annually or $2.9 million over the microgrid's 25-year … [Read more...]

SDGE Plans to Release an RFP Seeking a Microgrid Controller

microgrid controller

San Diego Gas & Electric (SDGE) plans to release a request for proposals (RFP) next month seeking a microgrid controller to help it manage energy storage and renewable energy. The California utility issued a notice Tuesday signaling the upcoming RFP, scheduled for release Wednesday, December 21. The utility seeks microgrid … [Read more...]

How Undergrid Minigrids Could Shore Up Unreliable Electricity in Nigeria and Beyond

undergrid minigrids

Sachi Graber of the Rocky Mountain Institute describes a $200 million opportunity in Nigeria to develop undergrid minigrids, projects that shore up electricity for those served by unreliable grids. Traditionally in sub-Saharan Africa, electrification efforts have emphasized the hundreds of millions of people who live off-grid, with no … [Read more...]