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U.S. Residential Distributed Solar: still getting cheaper, installation and permitting too, more batteries

October 20, 2022 by John Rogers

John Rogers at UCS reviews the new and comprehensive “Tracking the Sun” report from Lawrence Berkeley National Laboratory which covers both residential and non-residential “grid-connected, distributed” solar PV systems in the U.S. There has been clear progress across the board, including PV module efficiency, system costs, installation and permitting, and the uptake of batteries. For example, median efficiency for modules in residential systems … [Read more...]

Filed Under: Energy, Renewables Tagged With: batteries, California, costs, distributed, efficiency, grids, Hawaii, installation, IRA, modules, NonResidential, permitting, residential, solar, storage, Texas

Reversible Hydrogen fuel cells: can H2 gas-to-power support the grid economically?

June 1, 2022 by Edmund Andrews

We know about making green hydrogen from excess intermittent wind and solar. We also know that that same intermittency means the gaps in wind and solar generation need filling. Green hydrogen is very expensive to make. But what if that green hydrogen could be economically converted back to power when needed? Writing for Stanford University, Edmund Andrews describes new research, in collaboration with the University of Mannheim in Germany, into … [Read more...]

Filed Under: Energy, Hydrogen Tagged With: electricity, gas2power, Germany, hydrogen, Intermittency, power, prices, solar, Texas, wind

U.S. Solar breaks new records. What’s needed to keep the momentum?

May 10, 2022 by John Rogers

The latest available data reveals it’s been a record breaking 2021 for U.S. solar. John Rogers at UCS runs through the highlights. Solar passed the 100GW milestone, with 23.6GW newly installed, up 19% on 2020 and 77% up on 2019. Solar was the biggest source of new electric generating capacity for the third year in a row. Residential, non-residential and utility-scale all performed well. Across the nation, solar accounted for 3.9% of total … [Read more...]

Filed Under: Energy, Renewables Tagged With: California, costs, electricity, Illinois, Indiana, policies, residential, rooftop, solar, Texas, US, Utility, Virginia

Grid-scale modelling of Distributed Energy Resources and dynamic pricing for all customers

February 7, 2022 by James Conca

Smart grids can solve multiple problems now and throughout the lifetime of the energy transition. The supply from hundreds (existing + new wind, solar, etc.) and ultimately millions (rooftop solar, EV batteries) of power sources can be matched in real time with demand from all major customer devices (air conditioners, water heaters, batteries, EVs). Dynamic pricing keeps the peaks low and the troughs high. It takes the pressure off total load, … [Read more...]

Filed Under: Energy, Grids Tagged With: AI, batteries, dynamic, ERCOT, EVs, grids, HVAC, modelling, PNNL, pricing, rooftop, Shanghai, smart, solar, Spokane, Stem, storage, Texas, US, wind

Outlook USA: even with battery costs, Wind and Solar can undercut Coal and Gas by 2023-24

April 13, 2021 by Dennis Wamsted, Seth Feaster and David Schlissel

IEEFA has published its U.S. Power Sector Outlook 2021. Its authors, Dennis Wamsted, Seth Feaster and David Schlissel summarise and explain the projections. They say that coal and gas are set to become the biggest losers as renewable generation climbs quickly. The future for wind and solar – coupled with storage to address intermittency - is looking very good. They present estimates from NextEra (the largest renewable energy developer in the … [Read more...]

Filed Under: Energy, Energy Outlooks, Renewables Tagged With: batteries, coal, gas, Nextera, solar, storage, subsidies, Texas, US, wind

How to keep winter ice off a Wind Turbine’s blades

March 24, 2021 by Hui Hu

Nearly 800GW of wind power have been installed worldwide so far, with plenty more to come. But the Texas freeze in February showed how vulnerable wind turbines are to ice. Hui Hu at Iowa State University summaries his team’s research into solving a problem that can cut generation by 20% or even shut down turbines completely. He explains why existing de-icing solutions for airplane wings offer only a partial solution. Metal airplane wings can be … [Read more...]

Filed Under: Energy, Renewables Tagged With: airplanes, blades, ICE, science, Texas, turbines, wind, winter

We’re making much more progress decarbonising Electricity than Transport. Why?

January 14, 2021 by Catherine Wolfram

In the OECD, since 2000, electricity sector emissions have fallen by 8% while transport emissions have actually increased by 5%. The best performers like the UK recorded drops in both: 40% and 6% respectively. In the U.S. it’s 25% and 0%. Catherine Wolfram at the Haas School of Business asks why transport is still going in the wrong direction, given the power sector’s progress. She posits three theories. Rich nations are outsourcing … [Read more...]

Filed Under: Energy, Grids, Transport and energy Tagged With: California, electricity, emissions, EVs, grids, OECD, policies, power, regulations, Texas, transport, UK, US

U.S. EIA predicts Renewables will surpass Coal by 2021

January 30, 2020 by Dennis Wamsted

Renewable electricity generation in the U.S. has risen so fast in the last 10 years that it’s expected to surpass coal by 2021, according to the latest report from the nation’s Energy Information Administration (EIA). This would have been “unthinkable” in 2010, says Dennis Wamsted at IEEFA. Back then, nationwide, utility-scale solar generated 1.29bn kWh and wind 94.6bn kWh. By 2021 solar will have risen almost a hundredfold to 122bn kWh and wind … [Read more...]

Filed Under: Energy, Oil, Gas & Coal, Renewables Tagged With: coal, electricity, gas, Nuclear, solar, Texas, US, wind

Renewable hydrogen “already cost competitive”, says new research

March 15, 2019 by Jocelyn Timperley

Jocelyn Timperley at Carbon Brief has interviewed the lead author, and the critics, of this new report titled “Economics of converting renewable power to hydrogen”. The research says renewable hydrogen is already proving competitive for niche, high-intensity users in Germany and Texas. Future technological improvements, combined with expected changes to subsidies and CCS requirements, can make it so for large-scale industrial users in the next 10 … [Read more...]

Filed Under: Energy, Hydrogen, Renewables Tagged With: CCS, emissions, fossil-fuels, Germany, hydrogen, renewables, Texas, wind

Most read this week

  • Make Hydrogen in developing nations: share prosperity while meeting our climate goals by Dolf Gielen | posted on January 26, 2023
  • 10 Carbon Capture methods compared: costs, scalability, permanence, cleanness by Ella Adlen | posted on November 11, 2019
  • Can new cheap, frequent “laser” monitoring of critical components extend Nuclear plant lifetimes by decades? by David Chandler | posted on February 1, 2023
  • Wind and Solar generated record 20% of EU electricity in 2022. More than gas, nuclear, hydro, coal by Daisy Dunne | posted on February 3, 2023
  • Micro-nuclear reactors: up to 20MW, portable, safer by Christina Nunez | posted on April 22, 2021
  • The U.S. should support the EU’s Carbon Border Adjustment Mechanism (CBAM) by Joseph Majkut | posted on January 30, 2023
  • Utah: 140MW Geothermal bid can beat the cost and performance of the proposed Nuclear SMR by Dennis Wamsted | posted on January 27, 2023
  • EU Energy Outlook to 2060: how will power prices and revenues develop for wind, solar, gas, hydrogen + more by Alex Schmitt | posted on December 6, 2022
  • Biofuel is approaching a feedstock crunch. How bad? And what must be done? by IEA | posted on January 23, 2023
  • Can Aluminium-air batteries outperform Li-ion for EVs? by Helena Uhde | posted on September 8, 2021
  • EU ETS and CBAM: what the big update to emissions trading rules means for Europe’s key sectors by Simon Göss | posted on January 16, 2023
  • Steel decarbonisation: Australia must stop making excuses and follow Europe’s lead by Simon Nicholas | posted on February 2, 2023
  • What’s best for Hydrogen transport: ammonia, liquid hydrogen, LOHC or pipelines? by Herib Blanco | posted on May 5, 2022
  • Gravity Batteries: any nation can do it at scale using rocks by Simon Read | posted on July 27, 2022
  • Wind (and Solar) need their own Financial Transmission Rights to hedge their unique congestion risks by James Kim | posted on January 31, 2023
  • Hydrogen production in 2050: how much water will 74EJ need? by Herib Blanco | posted on July 22, 2021
  • Why hydrogen fuel cell cars are not competitive — from a hydrogen fuel cell expert by Zachary Shahan | posted on June 17, 2016
  • Concrete: 8% of global emissions and rising. Which innovations can achieve net zero by 2050? by Ben Skinner | posted on January 24, 2023
  • The 10 big problems with simply replacing fossil cars with electric by Schalk Cloete | posted on December 6, 2021
  • Smart Glasses: experts can monitor and advise on power plant inspections anywhere in the world by Christoph Gatzen | posted on January 25, 2023

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        Recent Posts

        Wind and Solar generated record 20% of EU electricity in 2022. More than gas, nuclear, hydro, coal

        Steel decarbonisation: Australia must stop making excuses and follow Europe’s lead

        Can new cheap, frequent “laser” monitoring of critical components extend Nuclear plant lifetimes by decades?

        Wind (and Solar) need their own Financial Transmission Rights to hedge their unique congestion risks

        The U.S. should support the EU’s Carbon Border Adjustment Mechanism (CBAM)

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