GLEN MORRIS - SMART ENERGY LAB...Glen Morris - Solar Power and Storage Created Date 4/27/2018...
Transcript of GLEN MORRIS - SMART ENERGY LAB...Glen Morris - Solar Power and Storage Created Date 4/27/2018...
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SOLAR POWER & BATTERIESGLEN MORRIS - SMART ENERGY LAB
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Download presentation from http://smartenergylab.com.au/downloads/Solar & Storage training courses at the Smart Energy Lab
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W H Y D O Y O U W A N T S O L A R P O W E R / B AT T E R I E S ?
• to save money
• to use more clean energy
• to be more self-reliant
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H O W T O R E D U C E E L E C T R I C I T Y C O S T S
• re-negotiate your electricity contract http://compare.switchon.vic.gov.au/
• use energy efficient applianceshttp://energyrating.gov.au/
• reduce energy use in your home/business
• install solar PV panels and/or solar hot water/heat pump
• install battery storage (long payback)
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B AT T E R Y V S H O T W AT E R TA N K
• most hot water services deliver 6-14kWh/day of energy to the home
• similar sized battery would cost $5,000-$10,000 installed
• will need “solar capture” system to store energy in tank
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S O L A R P V PA N E L S
• size
• power
• quality
• cost
• location
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T Y P E S O F S O L A R P V PA N E L S
thin film pv
mono-crystalline
polycrystalline
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I S M Y R O O F S U I TA B L E F O R S O L A R P O W E R ?
• Annual average peak sun hours for Melbourne
• North 4.67 PSH(30 degree inclined roof)
• South 3.48 PSH(30 degree inclined roof)
• south facing is 75% as good as north
SOUTH NORTH
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S E L F - U S E O F S O L A R I S B E S T
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G O V E R N M E N T I N C E N T I V E S
• STC’s (Small-scale Technology Certificates <100kW PV, payment on “deemed” production till 2030
• LGC’s (Large-scale Technology Certificates) certificates created after production each year
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S O L A R I N V E R T E R S
• convert solar dc electricity into grid-connected ac electricity
• optimise the operation of your solar panels
• may be installed inside or outdoors
• need adequate ventilation
• should be inspected for alarms and faults regularly
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SMA Sunny Island & Sunny Boy
Battery inverters and solar inverters
Battery Inverter Solar Inverter
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SolaX Goodwe ES
Hybrid inverters (solar + battery)
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“AC” batteries
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solar panel optimisersNOT micro inverters - allow each panel to work
independently
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Micro Inverterstiny inverters beneath each solar panel
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B AT T E R I E S
• store energy for later use
• allow self-use of solar energy at night
• may provide limited backup power during grid outage
• many technologies, location and safety need to be considered
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C A N B AT T E R I E S B E R E T R O F I T T E D ?
• easily if “ac coupled” (eg. Tesla/Sonnen/VARTA/Enphase)
• add parallel hybrid system with more solar and battery
• may be restricted by electricity supply authority limits (eg. 5kW maximum total inverter capacity)
• 3 phase installations have higher limits but require “phase balancing” of multiple inverters
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M O N I T O R I N G& C O N T R O L
• help users measure their energy usage
• can automatically detect faults
• may allow trading of your energy for higher returns
• may allow remote access and control of loads (eg. hot water/air con)
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average daily consumption 4.4kWh
1.5kW Solar PV with 4kWh Battery(Healesville CoRE Member)
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E C O N O M I C A N A LY S I S
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NORTH
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5kW PV system (no battery)
Median price for 5kW PV system in Melbourne (ata.org.au)
east/west array, no aircon
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5kW PV system (Tesla PW2 battery)
Typical pricing for 5kW PV system with Tesla Powerwall 2 battery
east/west array, no aircon
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M U LT I P L E S O L A R P V S Y S T E M S
• PV water heating
• Solar thermal water heating
• Solar PV power to home (can be used to run heat pump)
• Surplus solar PV can be “diverted” to hot water tank
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45 YEARS WITHOUT MAINS POWER
My Home – Moora Moora Coop