Distributed Energy

Multiple disparate trends could forcefully reshape power systems around the world. As electricity markets transform, technologies advance, industries converge, consumption patterns change, environmental

Distributed energy resources have changed the power generation sector, disrupting traditional markets and distribution models. Those working in the field tell POWER that research and development will continue

U.S. utilities continue to send workers to Puerto Rico to help restore that country’s electricity and rebuild its power infrastructure, a task that continues more than four months after back-to-back hurricanes left nearly all of the island in the dark. The Puerto Rican government this week said 83% of the island’s generation capacity has been […]

The rapid growth of distributed energy resources (DERs) is spawning new financing models that could send growth for the fledgling sector soaring, upending the power sector at an even more breakneck pace. Industry executives at Distributech 2018 in San Antonio, Texas, this week noted that several trends are driving the growth of DERs, which are […]

Though some countries, including the U.S., have moved to support coal-fired power generation over the past year, investments in renewable energy continued to rise, according to a new report from Bloomberg New Energy Finance (BNEF). The research group on January 16 said global investment in clean energy such as wind and solar reached about $333.5 […]

Merchant markets for independent power producers in the U.S. are unfavorable, and many companies in the sector have slumping profits—even big losses—as they ponder where to go in the months and years

There are challenges facing the power industry in 2018, but there are also a lot of exciting opportunities. Renewable energy and gas-fired generation are expected to continue growing, but changes in federal

Utilities across the U.S. are aware of beneficial electrification (BE) programs, but wide adoption has been held up by uncertainty about their potential and broader role in the evolving regulated utility

A utility group on December 18 agreed to keep a coal-fired power plant in Colorado Springs, Colorado, open for at least a few more years, and its members said they are prepared to move forward with distributed generation and could import power to make up for the eventual retirement of the Martin Drake Power Plant. […]

When is a D+ grade acceptable? The answer should be never. But that’s the state of the U.S. power grid according to the 2017 infrastructure report card issued by the American Society for Civil Engineers (ASCE). And the impact of this year’s catastrophic hurricane season only reinforced its vulnerability. Given the billions of dollars of […]

The PJM Interconnection, the largest regional transmission operator in the U.S., faces many problems: adapting to state policies designed to skew power markets in the face of natural gas and renewable

[Ed. note: This post was first published on October 5, 2017, and was updated on October 17, 2017, with embedded video from the DRONEWEEK television show.] DRONEWEEK is a television program that will air on the Viceland network beginning Monday, October 9, 2017, and continuing each night throughout the week. Each episode will feature footage […]

Siemens has launched a new direct-current (DC) transmission system for alternating current (AC) grids of between 30 kV and 150 kV. The medium-voltage system that can bridge distances of up to 125 miles is designed to help grid entities handle ever-growing volumes of power fed into the distribution system from distributed and renewable power. The […]

Electricity from a 5.76-MW solar farm in Massachusetts will be stored in an adjacent energy storage system as part of a plan announced October 4 by ENGIE North America (ENGIE NA) and Holyoke Gas & Electric (HG&E). The project is part of Massachusetts’ Peak Demand Management Program. HG&E, which received a $475,000 grant from the […]

Researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) have developed a unique large-scale power converter that can swiftly switch between multiple energy sources to help

A Houston-based microgrid company has used its on-site generators and underground natural gas pipeline system to enable H-E-B grocery stores in the Houston area to remain open despite power outages and massive flooding during and in the aftermath of Hurricane Harvey. Texas utilities have reported more than 300,000 customers have been without power at various […]

New Jersey officials this week said the state’s Board of Public Utilities is funding feasibility studies for a series of microgrids across the state that could provide needed power to municipalities at times of critical need, such as after a natural disaster. The board said the idea is designed to further the State Energy Master […]

The Midcontinent Independent System Operator’s (MISO’s) geographic footprint extends down the middle of the U.S. Because of the structure of its market, MISO has artfully avoided some nasty policy and

The same technology that links our phones to other smart devices is the key to unlocking a more intelligent, efficient, and reliable electrical grid.  Every day, we bear witness to the breathtaking pace of technological advancement in the modern world. Yet when we go home and turn on the light, the bulb is illuminated in […]

Community choice aggregation (CCA) continues to emerge as a favorite tool for towns, cities, and counties interested in pursuing local control over their energy supply, increased renewable electricity

Hydrogen-powered fuel cells were supposed to be the “Next Big Thing” a decade ago, but the hype ran well ahead of the market and technology. Yet some quiet advances and steady work have the sector on the

Grid-connected batteries have long been touted as a tantalizing prospect that could help balance electricity supply and demand as the amount of installed variable renewable generation ramps up. New

Community choice aggregation (CCA) is only allowed in seven states currently, but recent developments in California have investor-owned utilities there worried. They fear losing up to 80% of their retail load

New York’s electricity system and markets face a blizzard of changes, driven by policy, politics, and economic forces. The New York Independent System Operator and the New York State Energy Research and

There have been numerous pronouncements recently about the upcoming demise of the bulk power grid as consumers are projected to move toward decentralized green energy sources. We don’t believe that the end

The Hawaiian Electric Co. (HECO) and technology service company Stem Inc. have successfully tested nearly 1 MW of energy storage systems at 29 commercial sites on Oahu, the companies said on January 30. The novel pilot project, which sought “the ability to connect many customers’ energy storage with the utility,” comprises an energy storage “fleet” […]

The boom in renewable energy, spurred by dramatically falling costs, has led some experts and political figures to begin talking seriously about what was once science fiction: A world powered entirely by renewable generation. But is it truly feasible or economic? One series of studies suggests it is—with some important caveats. In the first half […]

A variety of approaches have been used to capture new benefits from combined heat and power (CHP) facilities. Some owners have transitioned to new fuels or added renewables to the mix, while others have implemented unique business models to spur development. As district heating systems are brought into the 21st century, the CHP sector seems […]

A wastewater treatment plant in the Danish city of Aarhus is reportedly producing enough power to cover all of the energy used for the whole water cycle in its catchment area—from water production and water

Solar roadways—roads that incorporate embedded photovoltaic cells—have piqued interest for several years. A few examples are finally being rolled out, though their practical applications are still being evaluated. On December 20, global transport infrastructure group Colas completed installing a solar panel paving system it calls “Wattway” (Figure 5) over 50 square meters (m2) at the […]