Coal-Killing Energy Storage Grows By 200% In US

September 10th, 2018 by Tina Casey by Clean Technica  File this one under O for Oops, Never Saw That One Coming. President* Trump campaigned on a promise to save coal jobs in the US, but he missed that thing about the potential for explosive growth in the energy storage market. Now the chickens are coming home to roost, and that spells bad news …

“Golden Sandwich” Solar Cell Converts 85% Of Sunlight To Electricity

September 13th, 2018 by Steve Hanley on Clean Technica Scientists at the Research Institute for Electronic Science at Hokkaido University have created what they call a “golden sandwich,” a photoelectrode that converts 85% of sunlight to electricity. Yes, this is experimental stuff and no, it has not yet reached commercial production. But stop and think for a minute what that could mean to …

NREL Analysts Take a First Look at the Florida Duck Curve—and How Flexibility Could Help

New analysis examines how solar deployment may impact grid operations in Florida, an understudied but important market. September 12, 2018 It’s been a decade since NREL discovered what’s now known as the “duck curve” when looking at how future deployment of variable solar might impact California’s power system. These days, NREL analysts are drawing upon data and experience from the Golden State …

Looking ahead to a really severe duck curve, what are the most effective solutions? Learning to make “baseload” power plants more flexible

Excerpt, Learning to make “baseload” power plants more flexible, Vox.com Aug 2018 David Roberts When you look ahead 10 years to a really severe duck curve, what do you see as the most effective solutions? Paul Denholm: A lot of people in the industry use this concept of a “flexibility supply curve,” which is you deploy the most cost-effective flexibility option …

There are numerous ways to add flexibility to the grid

An excerpt from David Roberts, vox.com  There are numerous ways to add flexibility to the grid. In one direction, toward more local solutions, you can “intensify” the grid, adding more storage and other distributed energy technology, creating more microgrids, and bringing more demand under control so it can be shifted to meet variable supply. All these solutions allow existing grids to …

The Carbon-Free Regions Handbook: Finance

The Carbon-Free Regions Handbook helps state, provincial, and regional governments implement policies and actions that place their communities on an aggressive path toward sustainable, low-carbon economies. It is a companion to The Carbon-Free City Handbook, which Rocky Mountain Institute launched in November 2017 at COP23 in Bonn, Germany.  2018  |  By Jacob Corvidae et al.  DOWNLOAD Developed in partnership with the Under2 Coalition   Regional governments operate at a scale …

NREL confirms technical and economic viability of integrating 175 gigawatts (GW) of renewable energy into India’s grid by 2022.

DOE/National Renewable Energy Laboratory. “India can integrate 175 GW of renewable energy into its electricity grid.” ScienceDaily. ScienceDaily, 25 July 2017. www.sciencedaily.com/releases/2017/07/170725122019.htm. The U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) has confirmed the technical and economic viability of integrating 175 gigawatts (GW) of renewable energy into India’s grid by 2022. Working with the Ministry of Power and USAID …

Colorado approves Xcel plan to retire coal, shift to renewables and storage. Xcel still plans to buy 383 MW of gas plants

Source: Catherine Morehouse, Utility Dive, Aug. 28, 2018,  Colorado’s Public Utility Commission (PUC) voted unanimously on Monday to give preliminary approval to Xcel Energy’s Clean Energy Plan, which would see the utility close 660 MW of coal-fired generation a decade earlier than scheduled and shift to renewable resources. Under the plan, Xcel will close units 1 and 2 at the Comanche …

Clean Heating and Cooling: Ground Source and Air Source Heat Pumps

Ground-Source Heat Pump Ground-source heat pump  (GSHP) — also referred to as geothermal heat pump — systems provide space heating and cooling, and, in some cases, hot water for residential and commercial buildings. The technology uses an indoor heat pump unit and a heat exchanging ground loop buried underground (or underwater) to transfer thermal energy between and among the ground …

New progressive candidates aren’t afraid to talk about the intersections of climate and injustice

New faces like Alexandria Ocasio-Cortez, Rashida Tlaib, and Summer Lee aren’t afraid to talk about environmental justice. E.A. CRUNDEN AUG 27, 2018, ClimateProgress CREDIT: GETTY IMAGES, RASHIDATLAIBFORCONGRESS.COM / EDIT BY DIANA OFOSU When Alexandria Ocasio-Cortez unseated incumbent Democrat Rep. Joe Crowley in the primary for New York City’s 14th congressional district, she did so while running on a progressive platform centering …