Con Edison Energy Efficiency Programs · Phil Madnick, Con Edison Subject This presentation is from the Building America expert meeting, Hydronic Heating in Multifamily Buildings,

Con Edison Energy Efficiency Programs

July 2011

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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

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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

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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

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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)

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Multi-family Energy Efficiency Program

Energy Management Systems

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Incentive

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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.

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Program Statistics on EMS

• 11 systems installed

• 44 systems under contract

• $125,000 in incentives

• 10%-15% realized energy savings

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Building X in the Bronx 17 units

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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

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0

1000

2000

3000

4000

5000

6000

January February March April

Therms

2010 / 2011

PRE

POST

EMS w/ Monitoring Contract

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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.

Market Barriers

• Technophobia

• Strict Cost Effectiveness Standards

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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?

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• A monitoring contract may be needed!

Department of Public Services Regulation

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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:

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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.

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QUESTIONS?

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Implementation Contractor: – The Association for Energy Affordability (AEA) – 1-877-634-9443 or www.aeanyc.org/conedmultifamily

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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]