presentation to uniting church in australia synod meeting may, 2013 energy & carbon reduction...
TRANSCRIPT
Presentation to Uniting Church in Australia SYNOD Meeting
May, 2013
Energy & CarbonReduction
Opportunities
Alternative Technology AssociationSustainable living in action
Publications R110 ~ 10,000 copies sold estimated 65,000 readers published since 1980
quarterly – 40,000 readers around 3,000 subscribers
17,000 distributed
Context
2011 SYNOD Resolution: 20% reduction of energy / emissions by 2020 all UCA assets
Energetics Report – 2011 high level estimate of energy & emissions aggregated estimate: +/- 40% confidence energy & CO2 close to compliance triggers but UCA not regulated (non-incorporated body)
Objective
Progress towards 20% reduction target report every 3 years...? no formal measuring & reporting systems significant amounts of data collected
No ‘centralised’ approach reliant on activities of site mgrs/congregations/etc
2 ways:1. new purpose/intent2. as part of existing operations
Approach
Empower site mgrs & community stakeholders to take action!
Site Assessments
ATA undertook high level site assessments: range of types of UCA sites:
1. Commercial office2. Church3. Community hall4. School5. Aged care
Opportunities
Lighting Space heating Water heating Insulation & draft sealing Standby loads Design choices – new buildings Bill management Solar?
But there’s no money!
Halogen Downlight50 wattPrice: $1.00
LED Replacement7 watt
Price: $70.00
Usage: 10 hrs / weekdayLifetime: > 2 years10 year cost: $330286% more expensive!
Lifetime: < 10 years10 year cost: $115Payback: 2.3 years
Energy/carbon reduction: 86%
Gas
Typical heating source (Vic) many UCA sites end of asset replacement? gas prices rising
Split system units both heat and cooling
high efficiency (CoP 3-5)
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Electricity PricesGas Prices
$$ here
Or here?
So, what about Solar?
1st Rule of Solar PV?
Energy Efficiency!!
2nd Rule of Solar PV?
Economics of Solar PV
Current economics: 6-8 year payback on 1 - 20kW system, if: low ‘export rate’ around 20c / kWh energy cost many energy efficiency items better than this big greenhouse benefit case by case basis
Thank You!