Engineering certification for the installation of solar photovoltaic (PV) modules on wood roofs is often denied because existing wood roofs do not meet structural design codes based on conservative analysis and codes. This report provides results from a testing program that documents actual load-carrying capacity of residential rooftops built to existing building codes.
Resources tagged State Solar Policy
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By the end of 2014, the United States had 20,500 megawatts (MW) of cumulative solar electric capacity, enough to power four million average U.S. homes. This success is the outcome of federal, state and local programs that are working in concert to make solar power accessible to more Americans.
Solar energy within the built environment may be an overlooked opportunity for meeting sustainable energy needs in places with land and environmental constraints.
North Carolina is the South’s leader, and fourth among U.S. states, in using solar power to diversify its portfolio of electric power generation fuels. Three policy issues affect the future of North Carolina’s continued development of large-scale solar, which can be viewed in the attached document.
Prepared by the American Wind Energy Association (AWEA) and SEIA, this handbook is intended as a starting point for states that are considering renewable energy as a compliance tool for the U.S. Environmental Protection Agency’s (EPA) proposed regulation of carbon emissions from existing power plants (Clean Power Plan) under section 111(d) of the Clean Air Act (CAA).
This study investigates how economically motivated customers will use energy storage for demand charge reduction, as well as how this changes in the presence of on-site photovoltaic power generation, to investigate the possible effects of incentivizing increased quantities of behind-the-meter storage.
Analysts at the Energy Department's National Renewable Energy Laboratory (NREL) have used statistical analyses and detailed case studies to better understand why solar market policies in certain states are more successful. Their findings indicate that while no standard formula for solar implementation exists, a combination of foundational policies and localized strategies can increase solar photovoltaic (PV) installations in any state.
The Solar Foundation’s National Solar Jobs Census 2014 is the fifth annual update of current employment, trends, and projected growth in the U.S. solar industry.
Capturing the value that solar photovoltaic (PV) systems may add to home sales transactions is increasingly important. This study enhances the PV-home-valuation literature by more than doubling the number of PV home sales analyzed (22,822 homes in total, 3,951 of which are PV) and examining transactions in eight states that span the years 2002–2013.