Energy conserving site design: Greenbrier case study, Chesapeake, Virginia. Final report
A specific case study of project planning for energy conservation for a major planned unit development at the 3000-acre Greenbrier development site in Chesapeake, Virginia, is summarized. The research suggests that very considerable reductions in energy conservation can be achieved within the confines of private-sector land development and residential construction with increased incremental costs of $200.00 to $3150.00 per dwelling unit. It is hypothesized that energy consumption at Greenbrier can be reduced by one-half with an average annual savings of 21,275 kWh per residential unit, using state-of-the-art technology with careful planning and control. This represents an annual savings $750.00 per unit at the current utility rate of 3.5 cents per kWh. These savings can be achieved through reduction in heating and cooling loads and application of more-efficient heating and cooling of the remaining loads. The reduction in loads are achieved by redesign of the land plan to include a higher percentage of south-facing lots, use of vegetation to modify microclimate, decreases in air infiltration, the use of 2 x 6 framing, better insulation, and the use of an insulated slab-on-grade foundation. Further energy savings can be expected by increased efficiencies in mechanical systems used for space heating and cooling and domestic hot water. When applied to the single-family portion of Greenbrier, containing 541 dwelling units, these options reduce the total end-use energy consumption 54.7%. This reduction represents an annual savings of $432,800.00 for an initial capital investment of $1.7 million.
- Research Organization:
- Greenbrier Associates, Chesapeake, VA (USA)
- DOE Contract Number:
- AC01-78CS24216
- OSTI ID:
- 5186187
- Report Number(s):
- DOE/CS/24216-1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
COMMUNITIES
ENERGY CONSERVATION
PLANNING
RESIDENTIAL BUILDINGS
COMPUTERIZED SIMULATION
COOLING SYSTEMS
DESIGN
ENERGY CONSUMPTION
HOT WATER
HOUSES
LAND USE
LANDSCAPING
SPACE HEATING
VIRGINIA
BUILDINGS
CENTRAL REGION
HEATING
HYDROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
SIMULATION
USA
WATER
320600* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- (1980-)
320100 - Energy Conservation
Consumption
& Utilization- Buildings
510500 - Environment
Terrestrial- Site Resource & Use Studies- (-1989)
291000 - Energy Planning & Policy- Conservation