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A comprehensive, multi-step approach to assessing solar energy opportunities for regional development and community energy planning is presented by Green Power Labs (Canada).
Citation preview
Solar Energy Assessment for Community Energy Planning
Solar Energy Assessment for Community Energy Planning
Dr. Alexandre Pavlovski, P. Eng., Green Power Labs Inc.Leonardo ENERGY Webinar - March 20, 2009
OverviewOverview
• Green Power Labs – Brief Introduction
• Community Energy Planning – Why Solar?
• Solar Resource Mapping based on Historical and Current Climatology Trends
• Community Solar Suitability Mapping and SolarStar™ Rating
• Solar Suitability Assessment of Buildings and Houses
• SolarRating Online
Green Power Labs: Fields of ActivitiesGreen Power Labs: Fields of Activities
• High resolution mapping, monitoring and forecasting of solar energy resources
• Development of GIS-based decision support systems for community energy planning
• Solar suitability assessment and rating of commercial and residential buildings and communities
• Solar thermal and photovoltaic systems engineering
Courtesy of Young + Wright Architects Inc.
Community Energy Planning:Why Start with Solar?
Community Energy Planning:Why Start with Solar?
• Solar energy is always “in your hands”: you can take advantage of it or waste it
• Available solar resource is a unique asset of every architectural design
• Solar technologies can be matched with essential community energy needs
Courtesy of Young + Wright Architects Inc.
Energy Prices and Lifecycle Costs: Solar Can Help
Energy Prices and Lifecycle Costs: Solar Can Help
• Rising energy prices have dramatically increased building lifecycle costs.
• Solar technologies for heating and power generation are a viable option to reduce these costs.
• It is estimated over 1000 square miles of commercial roof space is available in the United States for on-site solar energy generation.
•
• using our high resolution mapping and advanced imagery of site specific obstructions.
Courtesy of Young + Wright Architects Inc.
• Latitude
• Microclimate
• Altitude
• Natural Landscape
• Built Environment
• Technology Efficiency
Solar Energy Availability: System of Filters
Solar Resource Mappingbased on
Historical and Current Climatology Trends
Solar Resource Mappingbased on
Historical and Current Climatology Trends
Historical Solar Climatology for the province of Nova Scotia
Historical Solar Climatology for the province of Nova Scotia
-66 -65 -64 -63 -62 -61 -60
4 4
4 5
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Historical Solar Climatology for the province of Quebec
Historical Solar Climatology for the province of Quebec
Historical Solar Climatology for the province of Ontario
Historical Solar Climatology for the province of Ontario
GPLI developed ArcGIS toolset for mapping solar irradiance from satellite images
Current Solar Climatology for Strait-Highlands Region,
Nova Scotia (2007)
Current Solar Climatology for Strait-Highlands Region,
Nova Scotia (2007)January February
March April
1.2520.871
1.9871.324
3.1242.209
4.3363.523
4.6833.797
5.7134.256
May June
July August
5.5044.563
5.2274.150
September October
November December
4.0083.233
2.5271.868
1.2060.952
0.7990.582
3.162
2.803
kWh/m2/day
61 0’ 0” Wo 60 0’ 0” Wo
61 0’ 0” Wo 60 0’ 0” Wo
460’
0”
No
47
0’ 0
” N
o
460’
0”
No
47
0’ 0
” N
o
Solar Suitability Mapping and SolarStar™ Rating
Solar Suitability Mapping and SolarStar™ Rating
Dalhousie University, Halifax, Nova ScotiaDalhousie University, Halifax, Nova Scotia
• The largest post-secondary educational institution in the Maritime Provinces
• A member of G13, a group of leading research-intensive universities in Canada
• Student enrolment - 10,254 full-time undergraduate and 2,793 full-time graduate students (for 2007-08)
• Infrastructure – over 60 facilities
Dalhousie University: 10-year Comprehensive Master Plan Dalhousie University: 10-year Comprehensive Master Plan
Major Objectives:• To guide improvements in space
utilization and development• To guide capital budgeting and project
implementation• To support the University’s strategic
directions of sustainable development
Campus Energy Mapping – an integral part of Dalhousie master planning process
LIDAR-based Digital Elevation Site Model and 3D Visualisation
LIDAR-based Digital Elevation Site Model and 3D VisualisationDalhousie University Campus, Halifax
LIDAR – derived Digital Elevation Model allows for reconstruction of site features at ultra-high resolution
Campus-wide Solar Gain
Campus-wide Solar Gain
Mapping accuracies: 15 - 25 cm
SolarStar™ Suitability RatingSolarStar™ Suitability Rating
• Allows for easy comparison of commercial and residential properties for their suitability to solar energy generation.
• Creates a standard for building professionals and the general public
• Creates a convenient tool for labeling on-site solar energy generation potential
SolarStar™ Suitability Ratingof the Campus Buildings
SolarStar™ Suitability Ratingof the Campus Buildings
Solar Energy Generation Potential - Roofs(Solar Water Heating)
Solar Energy Generation Potential - Roofs(Solar Water Heating)
Solar Energy Generation Potential - Walls(Solar Air Heating)
Solar Energy Generation Potential - Walls(Solar Air Heating)
Solar Energy Generation PotentialSolar Energy Generation Potential
Area (m2) Total Annual
Solar Resource (MWh)
Energy Generation
Potential (MWh)
Solar Suitable Roof Surface: 44,142 57,116 9,400 (SWH)
Solar Suitable Wall Surface: 23,182 22,903 12,600 (SAH)
TOTAL 80,019 22,000
Existing heavy fuel oil consumption by central heating plant:average annual consumption of oil: 161,634 MWhdelivered at 65% efficiency: 105,062 MWhPossible solar share in heat supply: 21%
Solar Suitability Assessment of Buildings and Houses
Solar Suitability Assessment of Buildings and Houses
Site-SpecificSolar Suitability Assessment
Site-SpecificSolar Suitability Assessment
• A mandatory step in efficient deployment of solar technologies
• Recommended for existing buildings or those still in the design stage
• Allows for a well-informed decision on investment in solar technologies
• Determines the applicability and the best mix of solar technologies
• Enhances solar system engineering
Courtesy of WHW Architects
Solar Microclimate and System EngineeringSolar Microclimate and System Engineering
0 10 20 30 40 50 60 70 80 90A0
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Azimuth
95%-100%
90%-95%
85%-90%
80%-85%
75%-80%
70%-75%
65%-70%
60%-65%
55%-60%
50%-55%
45%-50%
40%-45%
35%-40%
30%-35%
25%-30%
20%-25%
15%-20%
10%-15%
5%-10%
0%-5%
100% direct radiation at45º Latitude
0 10 20 30 40 50 60 70 80 90A0
A10
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Tilt
Azimuth
95%-100%
90%-95%
85%-90%
80%-85%
75%-80%
70%-75%
65%-70%
60%-65%
55%-60%
50%-55%
45%-50%
40%-45%
35%-40%
30%-35%
25%-30%
20%-25%
15%-20%
10%-15%
5%-10%
0%-5%
10% direct radiation at45º Latitude
Solar resource available (% of max)
Solar Suitability Assessment ToolsetSolar Suitability Assessment Toolset
• Accurately reflects solar micro climate based on high resolution satellite-derived radiation data
• Incorporates advanced imagery of site specific obstructions and their impact on solar radiation
• Forecasts solar system performance
• Defines solar system payback period and return on investment
• Defines reduction in carbon emissions
Solar Suitability Assessment: Dalhousie University, Sir Charles Tupper BuildingSolar Suitability Assessment: Dalhousie University, Sir Charles Tupper Building
• Solar water heating
• Solar air heating
Solar Water
Heating
Solar Air Heating
Capital: $220,000 $160,000
Production: 40-50% of DHW
30% of heat load
GHG Reduction:
29 t/y 51 t/y
Payback Period:
12 years 6-7 years
Solar Suitability Assessment: Dalhousie University, Sir Charles Tupper Building
Solar Suitability Assessment: Dalhousie University, Sir Charles Tupper Building
Solar Suitability Assessment: Dalhousie University, Killam Memorial Library
Solar Suitability Assessment: Dalhousie University, Killam Memorial Library
SWH SAH
Capital: $96,000 $110,000
Production: 40-50% of DHW 39% of heat
GHG Reduction: 14 t/y 39 t/y
Payback Period: 10-11 years 5-6 years
Solar Suitability Assessment: Dalhousie University, Killam Memorial Library
Solar Suitability Assessment: Dalhousie University, Killam Memorial Library
SolarRating Online for Solar Education and Promotion
SolarRating Online for Solar Education and Promotion
Green Power Labs created this interactive, educational online assessment tool to support efficient use of solar energy.
Thank YouThank You
1 Research Drive Dartmouth Nova Scotia Canada B2Y 4M9
902 466 6475