home energy management
DESCRIPTION
Pilgrim Beart's presentation to Heat 08TRANSCRIPT
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Home Energy Management
Fast, affordable … and essential
Pilgrim Beart, AlertMe.com
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“Save Energy Now”90% of consumers are concerned about their energy bills
and want to save money (and energy) now*
But consumers lack the necessary informationand lack the ability to easily control consumption.
Governments worldwide are driving ‘energy saving’ because of both Energy Security and Climate Change
Per
son
al U
K e
nerg
y co
nsum
ptio
n†
* AlertMe survey of 1000 broadband users, Sep 2008† Sustainable Energy without the Hot Air
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EDF
UK generating capacity
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3,300 kWh
Electricity
Natural Gas
20,500 kWh
USWITCH JUNE 2008
UK
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CALIFORNIA
49 therms/household/month=588 per year= 17,000 kWh
Electricity
Natural Gas
5914 kWh
17000 kWh
http://www.pge.com/about/environment/calculator/assumptions.shtmlhttp://www.californiaenergyefficiency.com/docs/EEStrategicPlan.pdf
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UK Domestic energy consumption
• Average household:– Disposable income £14,520– Domestic energy bill £1,213 (8.3%)
(U-switch press releases, 6 June 2008, 26 Aug 2008)
– 10% of electricity wasted on standby(NAO, 2008)
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So why don’t consumersdo something about it?
Cost up-front?
ROI too poor or slow?
Laziness?
Ugliness?
Disruption?
Fear of unknown?
Fear of complexity?
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Obstacles
E.g. condensing boiler retrofit
Vaillant:“Switching your boiler could save you over £240* a year on heating bills because our high efficiency systems use 35% less energy”
– But installed cost ~£2200*– ROI ~10 years– Disruptive
* Average UK (boiler+install) from whatprice.co.uk Nov 2008
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Insulation measure Households with this measure
1976 2005
Loft insulation 51% 95%
Double glazing 10% 84%
Hot water tank insulation 74% 95%
Energy-saving : saturated?
BERR
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Managing Demand
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Many different solutions
• And we need many!
• Even the slow, expensive, hard ones– (perhaps especially those)
but don’t forget the quick, cheap, easy ones!
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Smart Meters
Europe• Italy already rolled-out AMR – too early• Sweden by 2009
– Gothenberg 300k home “ZigBee city”
• UK by 2020USA• California (regulated), 3.3m meters by 2011 (pop 36m)• Texas (deregulated), 7m meters by 2019 (pop 23m)
then…• Demand management (2 years after meters?)• Smart-Energy-aware Appliances (7 years after meters?)
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Energy management -Closing the loop
BEHAVIOUR
AUTOMATIC
MEASURE CHANGE
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Academic StudiesConsumer Behavioural Effects of making consumption
visible:• Savings of 5-15%• Best long-term effects from Billing or other periodic
feedback• Processed feedback best for demonstrating effects of
changes to heating, efficiency measures or high-consuming appliances.
• Indirect feedback best for showing heating load.• Historic feedback (comparing with previous recorded
periods of consumption) more effective than comparative or normative (comparing with other households, or with a target figure).
“The effectiveness of feedback on energy consumption - a review for DEFRA of the literature on metering, billing and direct displays” by Sarah Darby of the Oxford Environmental Change Institute, April 2006
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Evidence
• UK energy trials show that consumer pull is vital for adoption
• 90% of consumers are concerned about their energy bills and want to save money (and energy) now
• 67% would pay £10/month for an energy-saving service which claimed to save on average £31/month
• Focus groups have shown the need to remove the need for an “energy policeman” and engage the whole household
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Solutions
Set heating and cooling automatically, taking into account multiple temperature points, presence information, weather, day of week, house specific heating lag and more.
Read your meter anywhere (TV, phone, web…). Real-time and historical. In £ not kWh. Alternative tariffs.
Accurately measure energy usage at outlet and control it locally, remotely or automatically. Installs in seconds.
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Smart Energy in 2009 (not 2029!)
SmartMeter
Smart Plugs
SmartMeterSmartMeter
Gateway
Backhaul(wired)
Backhaul(wireless)
BackEnd
Displays
Phone
SMS
TVWeb
Ambient
API
Presence
Safety
LoadControl
(inc. EV)
SmartAppliances
Whole-houseTemps
HeatingControl
Value-AddedServices
Retrofit
Utilities and other service
providers
HAN
AlertMe launched in 1Q 2008
AlertMe to launch in 1Q 2009
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Removing obstacles
Cost up-front? £0 with rebate checks/CERT
ROI too poor or slow? ROI instant, if sold as service
Laziness?
Ugliness?
Create pull with an attractive consumer proposition
Disruption? Easy install
Fear of unknown? Market through familiar channels
Fear of complexity? Keep it simple
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References• http://www.alertme.com• http://www.californiaenergyefficiency.com/docs/EEStrategicPlan.pdf• http://www.pge.com/about/environment/calculator/assumptions.shtml• http://www.eci.ox.ac.uk/research/energy/electric-metering.php • http://lightbucket.wordpress.com/2008/04/12/step-one-home-insulation/ • http://www.greenandsave.com/master_roi_table.html• http://www.withouthotair.com/