Carbon Emission Reduction & Solar Energy for Congregations
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Transcript of Carbon Emission Reduction & Solar Energy for Congregations
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Carbon Emission Reduction & Solar Energy for Congregations
Bob Bruninga, Annapolis Friends Meeting351 Dubois Ave, Annapolis, MD 21401http://www.aprs.org/AFM-environment.html
Chesapeake Interfaith Environmental Group and Chesapeake Bay Foundation 6 Feb 2014
(rev m)
Solar Power for Electricity Electric Vehicle Support
Lighting
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Church Fossil Burning Costs
Solar Power for Electricity Electric Vehicle Support
We include EV’s because about half of our easily-fixed spiritual energy is spent driving to church
At AFM we currently burn Propane for heat (not shown here)
Big Picture!
Lighting
ElectricDriving
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When is the Payback ???When is the Breakeven ???
Paying for at-home Garbage Pickup -
is from Day ONE !
Tired of hearing:
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When is the Payback ???When is the Breakeven ???
Paying for Sewage Plants – is from Day ONE !
Tired of hearing:
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When is the Payback ???When is the Breakeven ???
Paying for Solar Power - is from Day ONE !Because that’s when we Stop Beating Mother Nature and stealing from our kids future.
Tired of hearing:
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1 House, 1 Year -consumes 4 Tons
of coal worth of electricity
Yes, we have 100 years of coal, but there won’t be anything left of WV!
Big Picture!
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OUR PRESENT LIFESTYLE
IS NOT SUSTAINABLE!
Or part of the Solution?
Are we part of the problem?
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SOLAR Panelsare equal to trees
forCarbon elimination
Each Panel = 8 Trees.
Our system = 312 trees!
= (3 acres of trees)
Solar panels eliminate carbon just like trees!
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When is the Breakeven ???
Carbon Benefit - is from Day ONE !If you compare based on carbon impact
Buy trees or solar! CARBON
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Lighting: Save 4 to 1 Energy!(breakeven in 5 days!)
Only 1 in 4 households do it!
Cost 50 cents.
Save $50 over the life of the bulb!
House with 50 bulbs saves $2500
$2
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Solar Power is here. 50% energy savings!
35,000
2012
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2013
Solar Cost! Equaled Utility in 2010Half the Utility in 2013
2009
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It’s a Whole New World!
• Cost effective in EVERY state since 2009!
Grid-Tie
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Grid-tie Revolutionized Solar
• No Batteries!
Every Watt Produced is valued at full Retail Rates!
Grid-Tie
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Angles - less important with Grid-Tie
Amazing, even due East, you still get 85% effectiveness!
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Angles - less important, More Roof is!
Amazing! Increase power by 60% to 100% on other side!
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• Federal gives 30% tax credit. No limit
• State of Maryland Grant – In 2010 for our 8kW system was $7000 – In 2011 was $5000– In 2013 was $1000– In 2014 is ??? (argh!)
• AA County Real Estate Tax credit– $2500
• Total Gov’t Tax Credits return ~ 40% of investment!
Government Incentives!
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• Federal gives 30% tax credit. No limit
• State of Maryland Grant – In 2010 for our 8kW system was $7000 – In 2011 was $5000– In 2013 was $1000– In 2014 is ??? (argh!)
• AA County Real Estate Tax credit– $2500
• Total Gov’t Tax Credits return ~ 40% of investment!
Government Incentives!
But not for tax-exempt Churches!
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• Workaround = Solar Lease or PPA
• Example Lease Program
– 0 money down save 15% over 20 years &
– 100% down save 50% over 20 years on Today’s rates! &– But rates will probably go up X 2 over same time– So result is paying about 1/4th for electricity?
• Faith Groups are in it for the long term… Just do it…
Work-Around for Churches!
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Grid Solar Power = Emergency PowerGrid Solar Power = Emergency Power
• COMPLETELY DIVORCE any thoughts of “COMPLETELY DIVORCE any thoughts of “emergency emergency powerpower” from ” from Economical powerEconomical power..
• Solar power (grid-tie) Solar power (grid-tie) is for is for ECONOMICAL POWER!ECONOMICAL POWER!
• Emergency powerEmergency power has completely different optimal has completely different optimal solutions. (Short term and Armageddon)solutions. (Short term and Armageddon)
2121
$400$10,000
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2222
Solar Power *is* EconomicalYou have $24,000 in the bank.Lets say your electric bill is $200/mo. Or $2400/yr or $24,000 over 10 yrs
Keep $24,000 in a bank at 1%. Continue to pay $200/m for Electricity* After 10 years, you have paid $24,000 with NOTHING to show for it* And every year you have uncertainty in ever rising prices• And you will keep paying > $24,000 or more every ten years• And your Savings in the bank has only grown by $2400
Buy a $40,000 solar system now, ( With incentives, Pay only $24,000)* Have maintenance free electricity for LIFE* It is generating $2400/year return on investment (10%) for LIFE* You OWN this $40,000 energy system and all it’s equity for life* After 25 years it is still producing 80% of today’s power! (and will continue)
Don’t wait, Solar is the best investment there is!
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8% - 10%
Considering your future of death, taxes and utilities, you can do something about your utilities!
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Design Solar to about 90% of need
The more we invest in renewable energy,
The more we become Energy conscious
The less we waste
The more efficient and sustainable we become!
Appliances also are getting more efficient.
Generally Solar converts begin to save energy
and reduce their remaining Utility Bill to ZERO!
Solar
Utility
Electric Need
Solar
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Solar Zero-down LEASE Example
For $0 down and monthly lease, can beat utility by 15%* & *assuming utility rates rise an average 2.9% annually
Usually design for 90% of usage (assume savings and Improving appliances)
Zero Down Lease
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Annapolis Friends Meeting Pre-Pay Example
(BGE=14¢)8¢
SREC’s =$250/mWhr
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Annapolis Friends Meeting 9 kW Array
Completed 31 Jan 2014
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Annapolis Friends Meeting 9 kW Array
Inverter
Circuit Breaker Sturdy (don’t do this at home!)
System Components
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Roof Issues: * Is 20 yrs old, plenty of life (but not another 20)* Is shaded
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We chose a ground mount system
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Annapolis Friends Meeting 9 kW Array
Orientation chosen to maximize Solar & minimize neighbor view
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Annapolis Friends Meeting 9 kW Array
Typically, Arrays follow the lay-of-the-land. But with our steep slope, we chose to keep horizontal & adjust edge, but had to pay an extra $1000 for unique engineering
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Annapolis Friends Meeting 9 kW Array
Tilt angle chosen was 25 deg instead of 35 deg to reduce visibilty ( less than 1% less than ideal)
Notice also that orienting to SE or SW would only lose less than 3% from ideal.
Choosing Tilt Angle
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50% Energy Spent Driving to Church
http://aprs.org/EV-charging-everywhere.htmlBob Bruninga, PE
IEEE Transportation Committee
50% of Church’s energy/emissions due to driving!With the Solar array, EV driving is 100% renewable
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Charge at Home (and at work)
http://aprs.org/payin-to-plugin.htmlBob Bruninga, PE
IEEE Transportation Committee
Public Charging is like looking for $10 gas!
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Charging While Parked
http://aprs.org/payin-to-plugin.htmlBob Bruninga, PE
IEEE Transportation Committee
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Oh the Horror!
http://aprs.org/payin-to-plugin.htmlBob Bruninga, PE
IEEE Transportation Committee
Reality with EV’s isPeople see thisAnd think $50
$1 a day
Our Legacy experience
20¢/hr
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120v outlets solve 97% of charging-at-work
http://aprs.org/payin-to-plugin.htmlBob Bruninga, PE
IEEE Transportation Committee
Church
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Charging Load at 120v:
http://aprs.org/payin-to-plugin.htmlBob Bruninga, PE
IEEE Transportation Committee
1 Coffee Pot = Level 1 EV charging
Pay $20/moFor 20mi commute
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Plug-in at work (double range, quadruple area)
Charge at home only = 16 mi range (chevy Volt)
Charge L1 at work/home = 64 mi range
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from 2200 gal/year down to 100 gal/year
And we help Environment
And save money!
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Solar Water Heating – WAS Best Application for solarfrom 1950 - 2005
Best energy capture per sqft… back in 1950-2005
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Solar PV is now EQUAL to Thermal hot water… !
Heatpump water heating is a game-changer !
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Solar PV is actually BETTER than Thermal hot
water… !
If 100% hot water not used EVERYDAY…then Excess solar everyday is lost
With PV, 100% of solar energy gives full retail value,Independent of how you use it!
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So, Lets do the right thing…Move forward with clean Energy
Bob Bruninga, Annapolis Friends Meeting351 Dubois Ave, Annapolis, MD 21401http://www.aprs.org/AFM-environment.html410-293-6417
Chesapeake Interfaith Environmental Group and Chesapeake Bay Foundation
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Church Fossil Burning Costs
Solar Power for Electricity Electric Vehicle Support
We include EV’s because about half of our easily-fixed spiritual energy is spent driving to church
At AFM we currently burn Propane for heat
ELECTRIC
Lighting
ElectricDriving
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But we should add Heating Energy (Propane)
Solar Power for Electricity Electric Vehicle Support
Our biggest fossil burning is for Propane heating!
When we convert to a G.S. heatpump we will need to DOUBLE our solar, but we CAN! and we will be carbon free!
At AFM we currently burn Propane for heat
Lighting
ElectricDriving
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Church Heating CostsPropane…
Actually our biggest Energy cost is our Propane heating.
Switching to Ground Source Heatpump will be our next major Environmental Project
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Switching from Propane to Ground Source Heatpump
Our heating costs will go down 60% AND being electric, we can replace that with solar for additional savings!