Archive: Renewables

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 […]


Sulzer Service Solutions

Sulzer is the leading worldwide, independent service provider for the repair and maintenance of large rotating machines including turbomachinery, pumps and electro-mechanical equipment. With a global network of technically advanced remanufacturing and test facilities, Sulzer offers a collaborative advantage that delivers high-quality, cost-effective, customized and turnkey solutions, providing its customers with the peace-of-mind to focus

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 […]

Test Your Knowledge

Test Your Knowledge Archive

Test Your Knowledge The quizzes provided here offer an easy way to test your knowledge of various power-related subjects. If you want to learn more about the quiz topics, follow links to articles from the POWER archive, which are provided on each individual quiz webpage. Boiler Chemical Cleaning Quiz Gas Turbine Failure Modes Quiz Improving Plant Efficiency Quiz […]

Public Service Co. of New Mexico (PNM) closed Unit 2 and 3 of the four-unit San Juan Generating Station (SJGS) near Farmington, New Mexico, in December 2017. Unit 2 came online when the plant opened in 1973 and is the oldest unit at San Juan. Unit 3 began operation in 1979. The shutdown of these two units will result in the reduction of energy generation of approximately 836 MW. PNM plans to replace the loss in generation with a diverse mix of increased renewable energy, existing nuclear power, natural gas generation, and increased power capacity from Unit 4. 

Courtesy: Kip Malone/PNM

More Coal and Nuclear Can Replace Retired Generation, State Supreme Court Rules

The Supreme Court for the state of New Mexico affirmed a final order by state regulators to allow Public Service Company of New Mexico (PNM) to replace lost generation from two shuttered units at its 1,800-MW coal-fired San Juan Regional Generation Station with coal and nuclear resources. The case stems from a petition filed by […]

This is a rendering of the proposed Dania Beach Clean Energy Center, which will replace the existing Lauderdale power plant in Florida. Florida Power & Light says the new facility could come online in 2022. Courtesy: Florida Power & Light

FPL Will Build New Gas Plant, Adds More Solar

Florida regulators on March 1 approved Florida Power & Light’s (FPL’s) plan to build a new $888 million natural gas-fired power plant, replacing an existing gas- and oil-fueled plant on the same site in Dania Beach that is being retired this year. The utility on Thursday also announced the opening of four new solar power […]

Part of the Desert Sky Wind Farm off I-10 in Texas. Desert Sky Wind Farm is a 160.5 megawatt wind power station located near the far West Texas town. Source: Wikimedia Commons

ERCOT Anticipates Summer Supply Crunch Amid Unit Retirements

The recent retirement of older generating units and high peak usage owing to economic growth could tighten operating reserves in the region served by the Electric Reliability Council of Texas (ERCOT) this summer. The grid operator said on March 1 that total resource capacity for the upcoming summer (spanning June through September 2018) is expected […]

Draw down and cut off of releases from the damaged spillway at Oroville Dam. Taken on Feburary 27, 2017. Dale Kolke/California Delpartment of Water Resources.

Human Errors Contributed to Oroville Spillway Failure

Damage to the main and emergency spillways of the Oroville Dam in California, triggered in February 2017 by heavy rain that was part of Northern California’s wettest winter in almost 100 years, has brought