solar future
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www.earthfuture.com SOLAR SATURDAY
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Our Solar Future
by Guy Dauncey, October 2011
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Our Solar Past
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We are here
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Solar energy travels at1,080 million kilometres an hour
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Sun to Earth in 8 minutes 19 seconds
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The solar energy absorbed by Earth's atmosphere,oceans and land masses is approximately
3,850,000EJ per year.This is more energy in an hourthan humans use in a year.
1,321 to 1,413 watts per square metre
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359 million years agoCarboniferous Era started
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It lasted for 60 million years
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In 200 years, through fossil fuels,we are burning ancient solar energy
that has been stored for 300 million years.
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As we burn the fossil fuels
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As we burn this ancient solar energy
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As we burn the fossil fuels
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we release its ancient carboninto the atmosphere.
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As we burn the fossil fuels
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As we burn the fossil fuels
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As we burn the fossil fuels
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As we burn the fossil fuels
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The amount of carbon dioxidein the atmosphere is rising
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Carbon dioxide,like the other greenhouse gases,
traps
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CO2 also enters the ocean,making the seawater more acidic
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threatening marine life that uses calcium
carbonate to build its shells
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TheArctic sea ice
is melting
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Greenlandis melting
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Antarctica is melting
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The last time the world was 3C warmer(3 to 5 million years ago)
the sea level was25 metres higher
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2 metres
10 metres
18 metres
25 metres
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6 meter sea level in Vancouver
Sierra Club of BC, May 2006
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We need to find a way
to return to a carbon natural world- as quickly as possible.
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TheSolar
Future
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The Carbon Yearsare the Launch Ramp for the Solar Years
Firewood500,000 years
Renewable Energy5 billion years
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40% growth pa16 - 50 cents/kWh
Global Potential: Enormous
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Oak Bay High School
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Rooftop Solar - Googles Headquarters
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Solar thermal + Solar PV + Skylights
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TSouke First Nation, Sooke
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Four Times SquareNew York
Solar PV architecturalcladding, no extra cost
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Solar Stadium, Taiwan
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Solar Home of the Future1958
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Solar Siding
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Solar railwayParis to Amsterdam
16,000 panels3.4 kilometres
3,300 MWh a year
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Les Mees, southern France18.2 MW
26 GWh/year 36 acres
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Pal Town
Ota Solar City, Japan
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Ota Solar City, Japan
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Solar township in California, USA
Solar township in Amersfoort, Holland
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For the same monthlymicro-loan repayment as
the cost of kerosene,
people in rural areas in thedeveloping world caninstall a 50 watt solar PVsystem for their lighting
needs.
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Kurzweil- Earth Policy Institute
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Solar market penetration
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Source: unknown
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Source: unknown
Canada
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5% of Alberta, if covered with solar PV,
could produce 100% of Canadas electricity needs.
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Impact of snows high albedo on solar PV performance= up to 100% increased yield
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Ann & Gord Bairds Eco-Sense house, Highlands100% increased PV yield
during late December snowfall, 2010www.eco-sense.ca
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Stone Mills, Ontario126,000 solar panels 90 acres
10 million kWh/year= 1,000 households
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Ontarios Solar Feed-in Tariff
Will there be a British Columbia
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BC Hydros generation 50,000 GWhTodays electricity 90% greenImported power 2010 4,000 GWh
Available new wind, river 20,000 GWh
Price of run-of-river energy 7-15 cents kWhPrice of wind energy 12-15 cents kWh
Price of solar PV 50 - 80 cents kWhExport price for surplus power 5 cents kWh
Will there be a British ColumbiaFeed-in Tariff?
Solar Economics in Southwest BC
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2011
Cost of 1 kW system $8,000Cost of money @ 5% $5,000Total cost over 25 years $13,000
Energy produced per year 1,100 kWhEnergy value per year $110 ($0.10)
Payback 118 yearsLife of system 50 years
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2011 2020
Cost of 1 kW system $8,000 $5,000Cost of money @ 5% $5,000 $3,000Total cost over 25 years $13,000 $8,000
Energy produced per year 1,100 kWh 1,200 kWhEnergy value per year $110 ($0.10) $180 ($0.15)
Payback 118 years 44 yearsLife of system 50 years 50 years
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2011 2020 2030
Cost of 1 kW system $8,000 $5,000 $3,000Cost of money @ 5% $5,000 $3,000 $1,100 (3%)Total cost over 25 years $13,000 $8,000 $4,100
Energy produced per year 1,100 kWh 1,200 kWh 1,300 kWhEnergy value per year $110 ($0.10) $180 ($0.15) $260 ($0.20)
Payback 118 years 44 years 16 yearsLife of system 50 years 50 years 50 years
Solar Economics in California
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2011 2020 2030
Cost of 1 kW system $3,500 $3,000 $2,500Cost of money @ 5% $2,150 $1,850 $900 (3%)Total cost over 25 years $5,650 $4,850 $3,400
Energy produced per year 1,500 kWh 1,600 kWh 1,700 kWhEnergy value per year $270 ($0.18) $352 ($0.25) $510 ($0.30)
Payback 20 years 14 years 7 yearsLife of system 50 years 50 years 50 years
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1. Resiliency - home power in the event of poweroutages, earthquakes or disruptions
2. Value - perceived advantage for future purchasers3. Efficiency - reduced long-distance transmissionlosses
4. Reliable - no moving parts that can fail5. Local economy - solar creates more jobs per MW hour
than any other kind of energy6. Good energy payback (EROI) - 1 to 3 years7. Zero carbon - a direct response to climate change8. Silent, clean, and non-polluting
Nuclear vs Solar
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Nuclear vs Solar
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Thin film solar
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Thin film solar production
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Thin film solar
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Transparent
solarwindows
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Nanosolar PV
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5 Million
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Green Jobs
The solutions to global
warming are not just aguard against future
economic ruin.
They are also solutionsto our current economic
stagnation and
unemployment.
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The Self-Reliant Economicsf R bl E
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of Renewable Energy
In 2010, the US spent $337 billion on oil imports= $641,000 per minute, $1,000 per person/year
Dollar Exports
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A dollar spent on locally produced energy may be spent 10 times
before it leaves the country. That $1 creates $10 in value to thecountry. Spend it on imported oil, and 70 cents immediately leavesthe country. 22 cents goes to the oil company, 3 cents to the creditcard company, and 8 cents stays with the gas station owner.
$1$1
$1
$1$1$1
$1
$1
$1 $1 $1
0.22
of Renewable Energy
$1
0.03
.70
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08 0.08
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What else is possib le?
Solar Cars
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Solar EV, Norway, 1990
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The Plug-in Hybrid EV
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Antro Solo, Hungary
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In 2003 Chen Shengui from Jiangjiangbuilt a solar-powered car.
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Chen Shenguis Prototype #1
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Chen Shenguis Prototype #2
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YouTube Videowww.bit.ly/Shengui
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In 2008, Louis Palmer drive his Solar Taxiaround the world on solar power.
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53,451 km around the world850 watts PV trailer 8 kWh = 100 km
Total power needed = 4,276 kWh
In one year, a 4 kW system could provide all thepower he needed to drive around the world.
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Solar EV Charging
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SolarParking
and Shading
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In Victoria 1 kW will produce 1,100 kWh a year
Electric car: 15 kWh = 100 km10,000 km a year = 1,500 kWh
1.5 kW system = 1,650 kWh/year$12,000 today ($6,000 soon)
$12,000 25 years guarantee
Solar Electric: 5% mortgage = $70/monthGas: $1.50 litre, 5 l/100km 500 litres = $750 = $62/month
Solar EV Cars
Solar Hot Water
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Solar hot
wateron a
restaurant inSweden
Photo by Hamilton Hazlehurst/Vulcan
Lindau Hospital, Germany
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Solar hot water
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on the Best Western Inn, Kelowna
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www.solarbc.ca
A project of the BCSEA
Evacuated tubes
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Julia Roberts, Nelson, BCGlobe Solar Energy
Jenergy Technologies
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Cost: $4,000 to $9,000
Average $7,200Energy generated: 1,000 - 1,500 kwh a yearSavings @ 0.8 cents kWh = $80 - $120/year
Solar Hot Water in China
T t l i t ll d 60 illi h
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Total installed: 60 million homes
Target for 2015: 115 million homes
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CSIRO1500 yuan ($220) per system
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CSIRO
$220 per system
Cheaper labour costs Very competitive environment - 800 different systems
Direct water to kitchen, no glycol heat transfer Very simple installation
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Year-Round Solar Heating
Drake Landing, Okotoks, Alberta.
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The Energy Centre
Drake Landing, Okotoks, Alberta.
Solar Thermal Heating 12 months a year
Community solar
heat panelsSolar hot water
panelsGuy Dauncey 2007
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800
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solar hot water
panelson the garages
90% of residential spaceheating needs met by solarthermal energy (40-50o C)
Reduction - 5 tonnes ofgreenhouse gas emissions
per home per year.
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No groundwaterintrusion, so the heataccumulates over thesummer and is notcarried away.
Solar Thermal Space HeatingRostock, Germany
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Sorce:
Solvis
Heat storage in an underground aquifer
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Solar Thermal Space Heating
enerquest.ca
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Olivier Drucke, 2009
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Olivier Drucke, 2009
Solar heated cob houseThe Highlands, Victoria
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g ,
Anne & Gord Baird
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www.eco-sense.ca
Solar wall heating
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Commercial/Industrial Solar Walls
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Solar wallGateway, Surrey
Solar wall
Festo, Mississauga
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Welsh Development Agency
Technology Center, St. Asaph, North Wales
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Solar heater in Sequim, WA
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Concentrating Solar Thermal
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Solar Millennium AG
The Sun radiates almost 1000 timesmore energy onto Earths desertsthan humankind uses.
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Odeillo solar furnace, Spain
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Large square 254 sq km = current world electricity useSmall square 110 sq km = current European Union use
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What else is possib le?
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Carmanah Solar Lighting
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New Jersey
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Solar Cookers
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Solar Dryers
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Sun21, First Solar Transatlantic Crossing, 200710 kW PV, 5-6 knots, 30 days
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Solarship, for freight transport(concept photos)
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Believethat it is
possible
100,000 Solar Roofs in BCby 2020
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by 2020
What will it take?
Victorias share 8% = 8,000
Victorias Solar Maths320,000 people 144,000 dwellings
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1,000 square sunny feet per roof = 144 million sq ftHalf houses suitable = 72 million sq ft
100 sq ft = 1 kW of Solar PV72 million sq ft = 720,000 kW = 720 MW
1,100 hours sunshine a year x 500 MW720 MW x 1,100 kWh per year = 792,000 MWh = 792 GWh
BC (4.4 million people) uses 60,000 GWhVictoria is 8% of BCs population
8% of 60,000 GWh = 4,800 GWh
Rooftop solar PV could meet 16% of Victorias power needs
or 32% if everything was twice as efficient
We need
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We need
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www.earthfuture.com
Local solar champions
We need
L l l h i
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www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss Solar
We need
L l l h i
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www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installers
We need
L l l h i
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www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
We need
L l l h i
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164/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectors
We need
L l l h i
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165/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectorsSolar-ready building requirements
We need
L l l h i
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166/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectorsSolar-ready building requirementsSolar trades training in the colleges
We need
L l l h i
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167/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectorsSolar-ready building requirementsSolar trades training in the colleges
Solar financing via municipal taxes
We need
L l l h i
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168/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectorsSolar-ready building requirementsSolar trades training in the colleges
Solar financing via municipal taxesSolar financing via utility bills
We need
L l l h i
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169/177
Guy Dauncey 2011
www.earthfuture.com
Local solar champions
Solar buying clubs - Swiss SolarTop-notch solar installersCompetition, with choice of systems
Trained building and plumbing inspectorsSolar-ready building requirementsSolar trades training in the colleges
Solar financing via municipal taxesSolar financing via utility billsSolar hot water required in the building code
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www.earthfuture.com
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Guy Dauncey 2007
www.earthfuture.com
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650 members4 Chapters around the province
Policy engagement with BC government,BC Hydro, BCUC.
SolarBC
Climate Change ShowdownGreen Condos
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www.bcsea.org
We welcome your membership,to help us continue our work.
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This is an amazing opportunity
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to build a Solar World
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Guy Dauncey
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thf t