Front| Copy of Feb 5,
2007 Testimony of Bion Howard, to South Carolina PURPA Hearing, Hardeeville, SC USA (PDF - 404 KB) |
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Building Environmental Science and Technology |
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Example Photovoltaic Solar Electric "Plant" (net-metered under Maryland Law) click on images for full size version, then click "Back" _____________________________________________ In service date: October 1998 -- Present Location: Ann Arundel County, Maryland, USA |
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 Home, designed to reduce heating, AC and hot water usage by ~ 30%; was built in late 1994. Analysis using NREL/SBIC Energy-10 program indicates about 30% passive solar heating; a 10% AC cooling penalty due to lacking overhangs on sunspace. |
 The BP Solarex amorphous silicon PV array was oriented due geographic south, at a 38 deg. tilt for improved summer-peaking performance. An assessment of the array mounting requirements and sizing was confirmed using the PV-DesignPro (Maui Solar Software, Inc.) computer program. |
 Southern Maryland, near the Chesapeake Bay, has a 80% probability of Hurricane direct hit over system life-span. The mounting rack was needed due to insufficient roof area, and was designed and built of welded mild-steel (high recycled content) to resist 100+ mph winds. |
 We found the most cost-effective option was to take advantage of net-metering, rather than pay the additional incremental costs for power storage. Maryland utilities law was revised to permit "net-metering" of PV solar systems in residential rates. |
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Energy Efficiency | Healthy Homes | Services Offered |
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