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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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DOE OSTI2022

Regulators’ Financial Toolbox: Designing Low- and Moderate- Income (LMI) Community Solar Compensation Programs

On February 9, 2022, as part of the NARUC Winter Policy Summit, five NARUC Staff Subcommittees (Energy Resources and the Environment, Rate Design, Electricity, Electric Reliability and Resilience, and Consumers and the Public Interest) co-hosted two sessions on community solar. The first panel was Community Solar I: Benefits for Low- and Moderate-Income Consumers, featuring opening remarks from moderator Hon. Eric Blank, Chairman of the Colorado Public Utilities Commission, and presentations from Richard Caperton, Vice President, Policy and Market Development, Arcadia, on behalf of the Coalition for Community Solar Access (CCSA); Chris Nichols, Senior Program Director, Groundswell; and Ted Trabue, Managing Director, DC Sustainable Energy Utility. See presentations and recordings. The second panel, titled What is Community Solar 2: Cost Impacts to Participants and Non-Participants, featured opening remarks from moderator Jamie Barber, Director of the Energy Efficiency and Renewable Energy Unit at the Georgia Public Service Commission, and presentations from Dr. Gabriel Chan, Associate Professor, Humphrey School of Public Affairs, University of Minnesota; Matthew McDonnell, Managing Director, Strategen Consulting; and Katie Chiles Ottenweller, Southeast Director, Vote Solar. See presentations and recordings.

14 SOLAR ENERGY↗
DOE OSTI2017

Maturation of Plastid c -type Cytochromes

Cytochromes c are hemoproteins, with the prosthetic group covalently linked to the apoprotein, which function as electron carriers. A class of cytochromes c is defined by a CXXCH heme-binding motif where the cysteines form thioether bonds with the vinyl groups of heme. Plastids are known to contain up to three cytochromes c . The membrane-bound cytochrome f and soluble cytochrome c 6 operate in photosynthesis while the activity of soluble cytochrome c 6A remains unknown. Conversion of apo- to holocytochrome c occurs in the thylakoid lumen and requires the independent transport of apocytochrome and heme across the thylakoid membrane followed by the stereospecific attachment of ferroheme via thioether linkages. Attachment of heme to apoforms of plastid cytochromes c is dependent upon the products of the CCS (for cytochrome c synthesis) genes, first uncovered via genetic analysis of photosynthetic deficient mutants in the green alga Chlamydomonas reinhardtii . The CCS pathway also occurs in cyanobacteria and several bacteria. CcsA and CCS1, the signature components of the CCS pathway are polytopic membrane proteins proposed to operate in the delivery of heme from the stroma to the lumen, and also in the catalysis of the heme ligation reaction. CCDA, CCS4, and CCS 5 are components of trans-thylakoid pathways that deliver reducing equivalents in order to maintain the heme-binding cysteines in a reduced form prior to thioether bond formation. Lastly, while only four CCS components are needed in bacteria, at least eight components are required for plastid cytochrome c assembly, suggesting the biochemistry of thioether formation is more nuanced in the plastid system.

59 BASIC BIOLOGICAL SCIENCES↗
DOE OSTI2018

Community Solar Project Database

This database represents a list of community solar projects identified through various sources as of Spring 2018. The list has been reviewed but errors may exist and the list may not be comprehensive. Errors in the souces e.g. press releases may be duplicated in the list. Blank spaces represent missing information. NREL invites input to improve the database including to - correct erroneous information - add missing projects - fill in missing information - remove inactive projects. Updated information can be submitted to Eric O'Shaughnessy at eric.oshaughnessy@nlr.gov.

14 SOLAR ENERGY↗