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Use of Solar Photovoltaic Energy Systems in Department of Transportation Facilities: A Review of Practice and Preliminary Assessment for Virginia Department of Transportation
Journal Article
13-03-02-0009
ISSN: 2640-642X, e-ISSN: 2640-6438
Sector:
Citation:
Bayrakci Boz, M., Donaldson, B., and Diefenderfer, B., "Use of Solar Photovoltaic Energy Systems in Department of Transportation Facilities: A Review of Practice and Preliminary Assessment for Virginia Department of Transportation," SAE J. STEEP 3(2):101-114, 2022, https://doi.org/10.4271/13-03-02-0009.
Language:
English
Abstract:
Renewable energy sources provide an excellent opportunity for state departments
of transportation (DOTs) to benefit from a dual use of land while providing
flexible, resilient, affordable, and environmentally responsible modes of
generation. Solar photovoltaic (PV) systems are particularly useful in this
regard. This study presents a literature review on the types of solar project
partnerships, application of solar PV systems by DOTs in the United States
(U.S.), solar energy potential, energy policies, and incentives in Virginia. In
addition, a feasibility assessment of installing solar PV systems at six (6)
Virginia DOT (VDOT)-owned sites is presented. The review of the literature
indicated that twenty state DOTs have implemented or are developing solar
projects using their facilities. The feasibility assessment showed the benefits
of installing solar PV systems at VDOT facilities. Energy production from the
use of PV systems at these facilities was estimated to be between 49,926 kWh and
3,821 MWh, and the total expected savings was estimated to be $679,389 per year
and $16,984,728 over the systems’ 25-year lifetime. The payback time ranges from
approximately 6 to 13 years before considering any tax credits and incentives.
Both the results of the literature review and the feasibility assessment for
VDOT show that solar PV systems provide savings and can help agencies meet their
renewable energy and environmental goals.