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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pump Sub-Committee

Road-Mapping Session

BPA Energy Efficiency Emerging TechnologyFebruary 15, 2011

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pump Road-Mapping Agenda

Goals and objectives 9:30 – 10 amRoad-mapping logistics 10 – 10:15 amActivity 1: Drivers & Barriers 10:15 – 11 amActivity 2a: VC HP Measures 11 am – noonActivity 2b: Technology 11 am – noon

lunch noon – 1 pm

Activity 3: Prioritization 1 – 2 pmActivity 4: Resources 2 – 2:30 pmStrategize next steps 2:30 – 3 pm

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pump

Definitions

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Bonneville Power Administration Federal power marketing agency

Part of US DOE Columbia Federal River System

Serve 134 public utilities in Idaho, Montana, Oregon and Washington

Mandated to pursue energy efficiency as a resource

Targets set by the Northwest Power and Conservation Council and verified by the Regional Technical Forum (RTF)

Energy efficiency is the lowest cost resource to offset regional load growth

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Types of BPA Energy Efficiency Measures

1. Deemed Measures (RTF approved savings)

Repeatable savings, with known variance

Typically technology-based (CFL)

2. Deemed Calculator (RTF approved)

Accounts for site-based variances (lighting calculator)

3. BPA Qualified Measures (Pilots to get more data)

4. Custom Projects Requires BPA approved M&V

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

BPA EE Measure ConsiderationsMeasures must be cost-effective based on first-

year electricity savings

Benefit cost ratio must be greater than 1

Can include verifiable non-electricity savings

Retrofit cost and savings quantified and verified from existing HVAC system

Payback must be greater than 1 year

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Retrofit Measure

Equipment is replaced before failure Includes naturally recurring replacements

Baseline is the existing HVAC system Measure cost includes installation cost

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

New Construction Measure

Includes new construction, major remodel and replacement of failed equipment

Major remodel defined as replacement of more than one building system, requiring a permit

Baseline is the code in effect at the time of permit

Incremental cost must be greater than 1

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Commercial sector

Not residential

No process or manufacturing

No agriculture production

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pumps

(VC HP = VRF + DHP)

+

Ductless Heat Pumps

Variable Refrigerant FlowHeat Pump System

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

VRF System Ventilation Options

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Miscellaneous HVAC Acronyms

Air-Air Heat Pump (A-A HP)

Dedicated outside air system (DOAS)

Packaged terminal heat pump (PTHP)

Water source heat pump (WSHP)

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pumps

Inverter driven compressors and fans

Electronic variable expansion valves

Sophisticated control algorithms and oil flow management

(VC HP = VRF + DHP)

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Summary of 109 PNW VRF Installations (new & retrofit)

Office46%

School15%

Retail0%

Lodging25%

Other14%

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

VC HP EE Measure Issues Hard to deem and verify system savings

Part load

Heat recovery

Ventilation

Incremental cost issues

Need to specify cost effective applications

Numerous baselines

Whole building approach?

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Variable Capacity Heat Pump Subcommittee

DRAFT GoalDevelop offerings for cost-effective, electric VC HP

measures within two years for the Commercial sector, consisting of:

1. a specification for cost-effective applications that ensure acquisition of electricity savings

2. a high-consensus estimate of electricity savings3. a high-consensus M&V protocol4. a high-consensus estimate of cost

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

RTF Sub-Committee

feedback on gaps, process

and results

RTF Sub-Committee Process

RTF Recommendation

Define Measure Baseline

& savings

Savings EstimatingProtocol

DevelopM&V

ProtocolBCR > 1

Field Test Results

Specificationsfor Ensuring

Savings

Market Research

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Roadmapping Activity #1 VC HP Drivers & Barriers

a) Why are VC HP systems being installed? Example: low first cost, quick payback, less mechanical space required, air

conditioning capability, improved comfort, energy efficiency, quiet , etc.

b) What barriers prevent VC HP systems from being installed?

Example: higher first cost compared to baseline system, unfamiliar technology

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Roadmapping Activity #2b Technology / Application Focus

What retrofit applications might be cost-effective based on

electricity savings?

With a focus on small and medium offices, schools, assisted living, lodging and multi-family applications

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Roadmapping Activity #3 Prioritization

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Roadmapping Activity #4 Resources

Describe other VC HP efforts, which may be resources for this Roadmap; provide as much detail as possible

for these efforts, as well as your name

Examples: SCE VRF work paper; CEE VRF IEER Tiers; EPRI’s VRF EE Demo

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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

Thank you for being a VC HP

Sub-Committee member!