Month: September 2021

Utility-scale solar PV pushes into higher AC voltages

By Allen Austin, ABB Inc. The evolution of high-efficiency solar photovoltaic (PV) string inverters is driving a shift toward higher AC voltages in utility-scale solar applications. Using string inverters in solar plants rated at 20 megawatts and below can be extremely beneficial.  With output voltages now as high as 1000VAC, the same amperages will yield …

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City mayors around the globe pledge to ramp up renewables transition

Eric Garcetti, Mayor of Los Angeles, USA, has launched the C40 Renewable Energy Declaration to help cities around the world accelerate the transition to clean energy resources in an equitable manner. Some 15 mayors have signed the declaration to increase the pace at which their cities are deploying renewable energy resources to create healthier communities, …

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US, China commit to phase down climate-warming HFCs from refrigerators and air conditioners – but what will replace them this time?

Scott Denning, Colorado State University The U.S. Environmental Protection Agency has finalized a rule to start eliminating a class of climate-warming chemicals that are widely used as coolants in refrigerators, air conditioners and heat pumps. If that plan feels like déjà vu, it should. These chemicals, called hydrofluorocarbons, or HFCs, were commercialized in the 1990s …

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Biden’s solar plan presents big opportunity for asset management firms

Follow @EngelsAngle The Biden administration’s Solar Futures Study calls for 45% of the U.S. electricity supply to come from solar by 2050. That means bigger (and more efficient) solar farms — a massive opportunity for companies that inspect and optimize utility-scale arrays. Mark Culpepper, general manager of solar solutions for DroneBase, a renewable energy asset …

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Enel Green Power taps ESS to deliver battery systems for solar+storage project in Spain

Oregon-based energy storage firm ESS Tech has been commissioned to deliver 17 of its long-duration Warehouse iron flow battery systems for a hybrid project in Spain. The order with Enel Green Power Espana contracts ESS to supply the energy storage complement to support a solar farm in Spain. The ESS system will offer a combined …

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Investigation into Texas freeze highlights natural gas failures, frequency of cold weather events

Follow @EngelsAngle Preliminary findings of a joint investigation into the freeze that left millions in Texas without power for days last February highlighted an increasing frequency of extreme cold weather events, as well as the devastation caused by the failure of natural gas-fired plants. The joint report issued by the Federal Energy Regulatory Commission (FERC) …

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U.S. hydropower generation to decline 14% in 2021 amid drought, EIA reports

In its latest Short-Term Energy Outlook (STEO), the U.S. Energy Information Administration forecasts that electricity generation from U.S. hydropower plants will be 14% lower in 2021 than it was in 2020. This is a result of “extreme and exceptional” drought conditions that have been affecting much of the western U.S., especially California and states in …

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GE selected to supply solar power stations for 1.3 GW of projects in Turkey

Follow @EngelsAngle GE Renewable Energy has been selected by Kaylon to deliver solar power stations for 1.3 GW of projects in Turkey, the company announced Thursday. GE will supply its FLEXINVERTER* solar power stations to the 270 MW Karapinar phase II-A and 810 MW Karapinar phase II-B solar plants, in addition to the power stations …

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Salt River Project connects 25 MW energy storage facility to Arizona grid

Arizona-based municipal utility Salt River Project connected its largest battery storage facility into the grid this month. SRP has placed the 25-MW energy storage facility into service at its Bolster Substation, which is adjacent to the gas-fired Agua Fria Generating Station. The fully charged battery site can power about 5,600 homes for close to four …

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