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Environmental and Economic Impacts of Integrating Photovoltaic and Wind-Turbine Energy Systems in the Canadian Residential Sector

Dalhousie University

Alan S. Fung

Ryerson University

V. Ismet Ugursal

Dalhousie University

The Canadian residential sector contributes approximately 80 megatons of GHGs to the environment yearly. With the ratification of Kyoto Protocol, Canada has committed to reduce its 1990 GHG emission levels by at least 5% between 2008 and 2012. To meet this target, Canada must evaluate and exploit all feasible means to reduce fossil fuel energy consumption and GHG emissions. Test-case Canadian houses were modeled in the building-energy simulation software ESP-r. Requisite housing stock data were extracted from Canada's residential end-use energy surveys. Photovoltaic and wind-turbine energy systems were assessed for their contribution to electricity generation and GHG savings. Typical household electrical consumption versus renewable electricity generation was assessed to estimate the GHG reduction, cost saving in electricity, and the impact of these technologies on single detached houses. With the use of net-metering, 100% of electricity requirements can be met by these technologies in certain cases, resulting in significant reductions in GHG emissions.

Key Words: greenhouse gases (GHG) • Kyoto Protocol • photovoltaic systems • wind-turbine energy systems • ESP-r • net-metering

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