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2018 Congressional Testimony

Outlook for light-duty vehicles and the fuels used in those vehicles pdf
Subject:EIA, transportation, energy markets
Presented by:John Maples, Senior Transportation Analyst
Presented to: Committee on Energy and Commerce, Subcommittee on Energy and Power
Washington, DC—March 7, 2018

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Solar plants typically install more panel capacity relative to their inverter capacity

operating AC and DC solar PV capacity additions, as explained in the article text
Source: U.S. Energy Information Administration, Form EIA-860, Electric Generators Report, 2016

A solar photovoltaic (PV) system’s panel capacity is often reported in direct current (DC), while operating capacity in the United States is reported as it is delivered to the grid in alternating current (AC). For economic and engineering reasons, capacity values reported in DC typically are 10% to 30% higher than those reported in AC capacity. This ratio is often referred to as the inverter loading ratio (ILR).

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