October 2011 www.enersave.com EnerSave Proprietary
Signature Analytics Electricity $275 Non-Itemized Electric Bill No Plug-Level Hardware Sensors Appliance Level Itemized Electric Bill (for Residential and Small Commercials) Appliance level bill itemization Personalized Recommendations & Alerts on Saving Energy Customized Appliance Deals & Rebates Expected Average Conservation: >5% + + Source: Electric Power Research Institute, Residential Electricity Use Feedback: A Research Synthesis and Economic Framework, Final Report, February 2009. EnerSave Proprietary 2
Broadband Penetration in US/Western Europe: > 73% 1 1 ZigBee 2 WiFi Cloud Smart Meter (Both AMI and AMR) Broadband Router Existing User Interfaces Hardware Options Hardware Cost Time Availability 1 ZigBee Gateways/IHDs Start at $30+ Present 2 ZigBee integrated into Home WiFi routers ~$0 Future EnerSave Proprietary 3
1 42 83 124 165 206 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821 862 903 944 985 1026 1067 1108 1149 1190 1231 1272 1313 1354 1395 1436 kw Use data available from Smart Meters through Home Area Network (HAN) sampled every few seconds Extract appliance signatures from data without any hardware submetering 4.5 4 3.5 3 Electric Cooking Range Electric Cooking Range Dishwasher Pool Pump 2.5 2 1.5 1 0.5 0 6:45am 11:45pm Minutes -> 6:45pm 11:45pm 6:45am EnerSave Proprietary 4
Pool Pump Refrigerator Clothes Dryer Air Conditioner EnerSave Proprietary 5
Cooking 2% Computers 4% Wet Cleaning 6% Electronics 7% Others 18% Space Heating 9% Refrigeration 9% Source: Building Databook 2010 Space Cooling 22% Water Heating 9% Lighting 14% Loads that provide largest opportunity for energy reduction and cover 70%- 80% of most homes Refrigerator(s) Air Conditioning Heaters/Space Heaters Electric Clothes Dryers Pool Pump Always On Distributed Generation Solar PVs panels In near future Electric Vehicles EnerSave Proprietary 6
1 Appliance Level Itemization Convert kwh into $ using Tiered/ToU rates Track where money goes Identify largest inefficiencies in the Household 2 Interaction With Consumers o o o Personalized Energy Reduction Program Appliance Level Recommendations, Trends and Alerts Weekly & Monthly Reports 3 Ways To Save Appliance Efficiency Replace/Recycle Inefficient Appliances Refrigerator - $212 Pool Pump - $372 Central AC - $209 Shift from Peak to Non-Peak Hours Clothes Dryer- $170 Dishwasher - $25 Pool Pump - $290 Behavioral Efficiency Detect Wasted/ Unused Energy Heater: $54 Air Conditioner: $65 Neighborhood Comparison Track and minimize # of Monthly loads for Washers and Dryer 4 Actual Savings > $200-$400 Savings Annually EnerSave Proprietary 7
More Actual Inefficient/ Obsolete Appliances Identified in Customer Base Non-Energy Star Energy Star Less Future with Customized Rebates $200-$400 based on existing appliance inefficiency Current Fixed Rebate Program; example $100 for new ES refrigerator Utility reaches out to replace top inefficient appliances Benefits: 1. Higher kwh savings per Rebate $ spent Consumer to purchase new appliance and apply for rebate. Issues: 1. Many inefficient appliance owners do not react 2. Free Riders Utility EE/Rebates Program Lifetime Appliance Power Consumption EnerSave Proprietary 8
Current DR Program Publicity Homes volunteer to participate in DR program DR H/W + Installation ($$$$) Utility DR Program Peak Demand Future with 2kW 4kW 3.5kW Peak Hours Use 8.5kW 10.5kW 8kW 2.5kW 3kW 3.75kW Identify & target specific appliances in homes with heavy peak hours usage Incentivize targeted homes to participate In DR program DR H/W + Installation ($$) Utility DR Program Peak Demand Reduced DR Capital investment Higher peak demand reduction EnerSave Proprietary 9
Product It Will Replace Technology Wise None. It will AUGMENT the Home Area Network Offering without any new hardware cost Budget Wise Other Energy Efficiency programs that may be less effective than this solution Total Market Potential 250M homes by 2015 (Every Home with a Smart Meter and Home Area Network connection can save energy) Top Barrier Opening of Home Area Network in Smart Meters by Utilities EnerSave Proprietary 10
Status Product in Beta >1000 Beta users from 20 different states in US Non-Energy Benefits Appliance Health Monitoring - Proactive maintenance Reduce customer support cost by using virtual energy audit to resolve high energy bill disputes Impact of Weather HVAC Savings Weather dependent Non-HVAC Savings (Refrigerator, Dryer, Pumps) Not Weather dependent EnerSave Proprietary 11
Utility Benefits >5% (estimated) Energy Efficiency returns for Utilities across a large number of consumers Demand Response made more capital efficient effective Higher consumer satisfaction and Smart Meters reception by directly helping consumers reduce energy bills Recommendation for Policy Makers Enable ZigBee radios for Home Area Networks Approve rebates for Home Energy Gateways to promote faster adoption Contact: Abhay Gupta - abhay@enersave.com www.enersave.com EnerSave Proprietary 12
Savings by Feedback Type Use Cases Unique Value Proposition Large Scale Benefits
> 20% Real-Time Plus Feedback Plus Custom Recommendations Residential Auto Continuous Commissioning + Source: Ehrhardt-Martinez, K., Donnelly, K. A., Laitner, J. A., 2010. Advanced metering initiatives and residential feedback programs EnerSave Proprietary 14
Annual refrigerator operating expense: $5.59*52 = $291 New refrigerator operating expense: $68 (at the same energy rate) Action Items: Recycle old and/or replace old with new refrigerator Refrigerator category reduction: 70% Whole house energy reduction: 11.3% EnerSave Proprietary 15
Always On level: 3kW - Annual Always On expense: $35.28*52 = $1834 Average Always On Level: 400W Average Annual Always On expense: $245 Action Item: Find sources of Always On and eliminate/turn off Whole House energy reduction: 55% EnerSave Proprietary 16
Statistical Average Individual Annual Residential Electricity Consumption (kwh) Reduction in Consumption (@5% Savings) Average Rate / kwh ($) Annual Savings ($) 10,000 kwh 500 kwh $0.1120 $55 CA state ~90 B kwh 4.5 B kwh $0.1483 $667 M US National ~1455 B kwh 73 B kwh $0.1120 $8.17 B Sources: Buildings Data Book: http://buildingsdatabook.eren.doe.gov/chapterintro2.aspx?2#2 CA Electricity Consumption: http://www.ipsr.ku.edu/ksdata/ksah/energy/18ener7.pdf EAI web site: http://www.eia.gov/cneaf/electricity/epm/table5_6_a.html EnerSave Proprietary 18
Accurate Rate Plan Calculator using Utility Tiered or Time of Use Rates No User Training Required www.enersave.com Advanced Analytics to show Appliance-Level Itemized Breakdown of Power Consumption* * Needs 1 minute granular data 1
Measure efficiency of solar generators on a different channel in same account Net Load negative during the day time for a user with PV solar generation www.enersave.com 2
Real Time Energy Dashboard Ways to Save Appliance Level Breakdown/Other Trends www.enersave.com 2
Refrigerator consumption 300% inefficient compared to Energy Star Pool Pump running for 5 hours instead of required 3 hours Air Conditioning cost/ sq. ft. of home 2 times higher than energy optimized home Towel Warmer costing $150 per year in energy cost One Time Energy Audit Second Refrigerator in the garage costing $190 per year in operations Recurring Savings (Continuous Commissioning) > $300-$500 Annual Savings Always On data too high compared to other homes turn off running PCs, second TiVo Drifts in changes from first time audit due to wear & tear or change in usage EnerSave Proprietary Left Pool Pump On after manual cleaning operation (a week cost could be $60) Left Heater/AC or electric Stove on when leaving the house Electric Water Heater need immediate maintenance (could break down and cause water damage) Weather/Season Based Thermostat settings quantize the benefits Doing 35 laundry loads a month compared to 20 for similar homes 22
Identify and target replacement of top inefficient appliances > 5% Energy Efficiency Reduction; Demand Response More Efficient Virtual Energy Audit for all Homes Qualify Homes before installing DR hardware Resolve High Energy Bill Disputes without a Truck-roll Identify Electric Vehicles Charging time Neighborhood comparison at appliance level Enable Residential Continuous Commissioning EnerSave Proprietary 23
Energy Efficiency Recommendations Appliance Health Monitoring Neighborhood Comparison Available Today Generic None House level EnerSave Technology Enables Personalized - at Appliance Level Real Time and Preemptive Appliance level Appliance and Retrofit Discounts Load Control/ Demand Response Generic Manual/Limited Consumer Specific Discounts or Free Appliances Measure & Increase DR returns EnerSave Proprietary 24