Archive: Renewables

Chalk Point Generating Station located in Maryland on the Patuxent River. Source: Commons

NRG Sheds Generation Emphasis, Puts More Focus on Retail

To remain competitive in power markets increasingly characterized by disruptions, NRG Energy plans to accelerate its transition from a pure independent power producer (IPP) model to a more simplified customer-driven integrated power model that favors its retail businesses. In a number of presentations showcased on March 27 as part of NRG’s 2018 Analyst Day, company […]

Courtesy: Google Maps

CAISO Backs PG&E Clean Energy Plan for Oakland

The California Independent System Operator (CAISO) has approved a request from Pacific Gas and Electric Company (PG&E) to provide a mixture of energy storage, energy efficiency, and system-wide upgrades to ensure reliable electricity in the Oakland, California, area, after the retirement of an aging Dynegy jet fuel-powered plant. PG&E received CAISO approval for its Oakland […]

POWER Podcast art-final

Resource Diversification a Key for TVA [PODCAST]

Joe Grimes, executive vice president of generation with the Tennessee Valley Authority (TVA), gave the keynote presentation during the ELECTRIC POWER Conference and Exhibition, which was held March 19–22 in Nashville, Tennessee. His presentation focused on steps TVA is taking to diversify its generation portfolio in order to reduce risks and keep costs as low […]

Sunrise behind turbines at Los Vientos Wind Farm as seen from top of tower; wind energy; renewable energy; blades

Duke Energy Eyes More Coal Closures as Part of Decarbonization Drive

Giant U.S. energy holding company Duke Energy in a new report outlined for shareholders how it will achieve a goal updated last year to reduce its 2030 carbon dioxide emissions 40% compared to 2005 and achieve a “science-based 2-degree target.” The company’s 2017 Climate Report to Shareholders made public on March 22 unveils a strategy […]

Michael Reid, general manager of technical programs at Duke Energy, talks about his company's use of digitization in monitoring and diagnostics (M&D) of assets. Reid spoke at POWER magazine's 2018 ELECTRIC POWER Conference + Exhibition in Nashville, Tennessee. Photo: Darrell Proctor, POWER magazine

Utility Managers Build Business Case for Digital Technologies

The rise of digital technologies for power plants has moved in fits and starts over the past several years, with some generators quickly embracing digitization of their assets while others are looking to justify potential investments. Suppliers of digital technologies have widely marketed the benefits, but many generators are looking to current end users for […]

Solar panel in factory

U.S. Solar Installations Dip Amid Uncertainty

Burdened by a trade case, unpredictable policy-making, interconnection delays, and other market factors, the U.S. installed 30% less solar photovoltaic (PV) capacity in 2017 compared to a record-breaking 2016. However, the 10.6 GW of new PV capacity added last year represents 30% of all new generating capacity added to the U.S. grid, more than any […]

First Solar - Agua Caliente - Arizona

Regulators, Lawmakers Spar Over Arizona Renewable Mandates

State regulators in Arizona want the state’s investor-owned utilities to source more of their electricity from renewable sources, and develop more energy storage options, rather than rely on new natural gas-fired generation in the future. State senators, however, voted March 14 to give utilities a way to get around any voter-supported mandates for renewables. The […]

Auf der Heimfahrt aus Berlin während der Autofahrt entstanden. Nachbearbeitung mit Darktable. EIn tolles Programm. :)

Arised on the way home from Berlin during the car trip. Post processing with Darktable. A great programme. Courtesy: Florian Richter

Germany’s New Coalition Government Agrees to Phase Out Coal, but Will Miss 2020 Emissions Targets

Germany’s Social Democratic Party (SPD) members agreed to join their longtime rival and governing partner, the Christian Democratic Union (CDU), and reluctantly entered into a third grand coalition government on March 4. While this ended months of anxious handwringing following September’s national elections, the entire process was mired in frustration as the prospect of yet […]

Boiler chemical cleaning

Test Your Knowledge: Boiler Chemical Cleaning

Most engineers and operators know (or should know) that boiler tubes containing deposits create long-term reliability problems for the boiler. Long-term overheating of the metal will result from prolonged operation with heavy tube deposits. The tubes will first bulge and then fail. Because the deposits tend to be widespread, this generally means that large sections of […]

The Deely power plant near San Antonio will be closed in 2018. The station's two coal-fired units are among several in Texas being retired as utilities in the state transition away from fossil fuels. Courtesy: CPS Energy

Texas Utility Ready to Ramp Up Renewables

The CEO of Texas-based CPS Energy said March 6 that the utility wants to generate at least 50% of its power from renewable sources by 2040, part of a plan that includes the addition of 550 MW of battery storage, as it looks to reduce its dependence on fossil fuels. But the city-owned San Antonio […]