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Con Edison Service Territory
• 660 sq. mile service territory • 133,000 miles of T&D cable • 76,000 people/sq. mile • 2,000 MW/sq. mile at peak • Over 3.3 million unique electric, gas
and steam accounts; serve about 10 million people
• Over 600,000,000 sq. ft. of office space
• 421,000 businesses • 900,000 residential buildings • 58 billion kWh of electric
consumption
2
Electric System Efficiency
Generation
ERRP
Fossil Fuel
Customers
Incandescent Lighting
Room Air Conditioners
Average Efficiency 33%
Transmission
& Distribution
Distribution
Transmission
Average Efficiency 93%
Commercial Refrigeration
Commercial HVAC
Average Efficiency 15-45%
33%
Large Gas Turbine
31%
68%
98.8%
96.5%
8-12%
55%
65%
15-30%
Combined Cycle 45%
Natural Gas Consumption Breakdown Residential
4
Space Heating73%
Water Heating19%
Appliances7%
Misc1%
Space Heating58%
Water Heating25%
Space Cooling2%
Cooking14%
Misc1%
5+ units 1 – 4 units
Space and water heating are predominant uses
Customer Attitude Study Results:
• Residential Interest: highest among condo/coop owners (49%) and 1-4 family homes (35%)
• Commercial Interest: 38% of commercial customers have high level of interest
• Factors driving interest:
– Want to help the environment (32%) – Want to lower future bills (20%) – Want rebates/incentives (26%)
• Customer Expectations: – Participate in simple programs – Knowledge of cost savings, rebates, and payback – Individualized support from project start to finish
5
Overview:
– Building and units receive an energy survey showing eligible energy conservation measures and savings.
– Owner receives financial incentives for upgrading to energy efficient efficient equipment that is cost effective.
– Participating building’s residents receive free installs (including CFLs, smart strip, showerhead, and faucet aerator).
• Eligible Customers:
– Owners or managers of multi-family buildings with 5-75 units (including rent-controlled, rent-stabilized, market-rate rentals, co-ops, and condos).
– Must be a Con Edison customer for either firm gas or electric
• Contractor:
– The Association for Energy Affordability (AEA)
6
Multi-family Energy Efficiency Program
Incentive
8
Measure IncentiveEnergy Management System 70% of installed cost up to $20,000
* Based on a 61 unit building in Manhattan currently under renovations
Annual energy savings 2,000 therms
1st year dollar savings $2,700
Installed cost $14,500
Payback 5.4 years
Incentive $10,150
Customer payback 1.6 years
minimum system requirements:
1. Must satisfy total resource cost calculation.
2. Remote access and monitoring capabilities via web
3. Apartment sensors in 25% of units (no less than 5)
4. Outdoor reset capability
5. Feedback sensors: Stack temperature sensor
DHW temperature sensor
Outdoor temperature sensor
Supply or return water temperature sensor (for Hot Water systems)
Condensate return temperature sensor (for Steam systems)
6. Perform boiler staging for multiple boiler systems.
9
Program Statistics on EMS
• 11 systems installed
• 44 systems under contract
• $125,000 in incentives
• 10%-15% realized energy savings
10
Building X in the Bronx 17 units
11
0
200
400
600
800
1000
1200
1400
1600
1800
January February March April
Therms
2010 / 2011
PRE
POST
Building Y in Manhattan 36 units
12
0
1000
2000
3000
4000
5000
6000
January February March April
Therms
2010 / 2011
PRE
POST
EMS w/ Monitoring Contract
13
Average Realized Energy Savings
112 Buildings in Brooklyn
(all gas) 14.2%
213 Buildings in Bronx/Manhattan
(11 oil , 2 gas) 19.2%
Portfolio
*Data courtesy of Dan Carleton, Heat Watch LLC.
Behavioral Impact on EMS
• Education of building manager
• Commitment to using the system and responding properly to alerts
• How often does the super bypass the system?
15
• A monitoring contract may be needed!
Department of Public Services Regulation
16
Benefits • EUL = 15 years
• $ value of NET therm savings over EUL (NTG = 90%) • savings devalued each year using LRAC scale and 5.5% discount rate.
• CO2 offset at $0.09/therm ($15/ton of CO2)
Costs • Full installed cost
• Administrative cost of 25% of incentive
Total Resource Cost Examples:
17
35 unit building 10 unit building
therm savings 3,100 900
installed cost $14,700 $12,800
Benefits NPV $42,850 $12,250
Costs NPV $15,550 $13,550
TRC 2.76 0.9
Threshold Building Size = 15 units
Research Needs
• Increasing the cost effectiveness of EMS
- adding lighting control, motor control
- raise energy befits with minimal cost increase
• Study building’s commitment to using EMS
- quantify the added benefit of using professional monitoring service.
18
Implementation Contractor: – The Association for Energy Affordability (AEA) – 1-877-634-9443 or www.aeanyc.org/conedmultifamily
20
Multi-family Energy Efficiency Program
Gregory Elcock CEM CEA CBCP BEP Program Manager 212-460-6507 [email protected]
Phil Madnick CEA BEP BPI Assistant Program Manager 212-460-6741 [email protected]