Archive: Distributed Energy

A consortium led by Mainstream Renewable Power ordered 157 Siemens SWT-2.3-108 wind turbines for three projects in South Africa in February 2016. The 140-MW Khobab wind farm and the 140-MW Loeriesfontein 2 wind farm are both located in the Namakwa District Municipality, and the 80-MW Noupoort wind farm is located in Umsobomvu Local Municipality. Courtesy: Siemens

Report: Clean Energy Investments Hit $333.5 Billion in 2017

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 […]

Figure 4-NRG Solar

What Is the Future of Independent Power?

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

Martin Drake Power Plant

Board Keeps Option to Close Colorado Coal-Fired Plant Early

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. […]

Graciosa Island. The hybrid system installed on Graciosa Island combines a 4-MW battery storage system with wind, solar, and diesel power generation. Courtesy: Younicos

Say Hello to Hybrid Microgrids: Renewables, Storage, Diesel, and Intelligence

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 […]

Fig 3_PJM control room

PJM: Can the Big Dog Deal with State Interference?

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

POWER Podcast art-final

Droneweek [PODCAST]

[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 […]

In the past (arrows shown in blue), power has typically flowed from conventional generation source to consumer in one direction via alternating current (AC). The medium-voltage direct current (MVDC) solution system (arrows in green) could allow  for omnidirectional energy flows at larger distances. Courtesy: Siemens

Siemens Rolls Out MVDC Transmission System to Bolster Distributed Generation 

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 […]

Mt Tom Solar Farm

ENGIE, HG&E Team on Solar Energy Storage Project

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 […]