El Portal Complex Parking Lot Install Renewable Energy Equipment
Shade structures would be metal, free-standing structures on two legs with a cantilevered deck tilted at about 10 degrees to the south. The decks are available in a range of sizes to match the parking area dimensions. The supports and trim can be painted to match area light poles or to meet other architectural objectives. Power to and from the structure would be subgrade. Night lighting could be provided beneath the shelters for safety purposes.
Project would install roof-mounted and shade structure-mounted photovoltaic panels in the El Portal Maintenance Complex and the El Portal Wastewater Treatment Plant. Total system size could range from 600kw - 745kw. In 2008, Yosemite spent $339,000 on electric bills for the El Portal complex, using almost 3,000,000 kwh. This project could provide as much as 30-40% of the combined facilities' electricity needs. The shade structures would have other benefits, such as reducing algae growth in wastewater aeration ponds, shading government and private vehicles, and reducing the heating effect of exposed blacktop. All ground disturbance will be contained in paved areas. Trenching will be required to bury the 12" x 12" x 18" utility lines.