BPA Rooftop Unit Research and Pilot Programs

BPA Rooftop Unit Research BPA Rooftop Unit Research and Pilot Programs and Pilot Programs

Update for Regional Technical ForumApril 7th, 2009

Jack CallahanBonneville Power Administration

Current BPA RTU ResearchCurrent BPA RTU Research

BPA/EWEB/PECI Premium Ventilation Package ◦ 2008 – 2009 field tests with detailed pre/post metering◦ 2 sites, 4 RTUs

BPA/PNNL /State of Washington Smart Monitoring and Diagnostic System◦ Field test of concept and energy savings◦ 44 meters installed July 2008◦ SMDS units fall 2008 – spring 2009. ◦ Analysis and reporting will be completed by December 2009

BPA/PNNL development of self-correcting HVAC diagnostics

RTF Rooftop Unit subcommittee

Current BPA RTU PilotsCurrent BPA RTU Pilots

Completed BPA 2008 AirCare Plus Pilot◦ 63 Rooftop Units Serviced◦ 27 units with ~ 2 weeks pre/post metering.

Planned 2009 RTU Pilot◦ Summer of 2009◦ 600 Rooftop Units◦ 2 to 4 Program Delivery Contractors◦ Pre/Post metering for 120 + units◦ Use, test and develop M&V Protocol

Planned 2010-2012 regional RTU servicing programs.

BPA 2008 AirCare Plus BPA 2008 AirCare Plus SM SM Pilot Pilot Inland PowerKootenai Electric CooperativeCity of CheneyCity of ChewelahPECIDRS MechanicalBPA

2008 AirCare Plus Research Project 2008 AirCare Plus Research Project Opportunity in SpokaneJune – October 2008Service on 63 RTUs at 25 businessesMetering and analysis for 27 RTUs

AirCare Plus AirCare Plus SMSM

Servicing RTUs and split systems ranging in size from 3 to 60 tons

HVAC Service Assistant™ Economizer diagnostics Programmable Thermostats

PECI AirCare Plus enhanced maintenance service

AirCare Plus MeasuresAirCare Plus Measures

2008 AirCare Plus 2008 AirCare Plus SM SM ServicingServicing

2008 RTU Pilot Summary2008 RTU Pilot Summary

4 participating utilities21 sites visited63 units serviced27 units metered247 measures completed$15,530 Incentives paid$13,077 program delivery cost

BPA 2008 ACP Pilot – Predicted Measure Cost and Savings

DescriptionAverage of

SavingsAverage of Incentive

$/first year kWh

Basic pkg w econ 176 $50 $ 0.28

Basic pkg w/o econ - $25 $ -

Economizer adjustment 1,181 $150 $ 0.13

Economizer control pkg 61 $100 $ 1.65

Refrig 1 compressor 195 $125 $ 0.64

Refrig 2 compressor 1,163 $175 $ 0.15

Refrig prescreen - $25 $ -

TSTAT modification 3,749 $25 $ 0.01

TSTAT replacement 848 $100 $ 0.12

RTU MeteringRTU Metering

Sampling Plan◦ At least 20 RTUs◦ Time and Cost are main drivers

Erik Boyer, BPA: Metering Installation and Data CollectionOnset HOBO U-30 GSM Loggers

◦ Temp/RH Sensors Outside Air, Supply, Return, Mixed Air

◦ RTU Total kWh◦ T-Stat (Y1) call for cooling

1 to 2 weeks pre/post metering1-minute interval data

RTU MeteringRTU Metering

Measured Energy SavingsMeasured Energy Savings

Questions?

BPA 2009 RTU Service Pilot BPA 2009 RTU Service Pilot Preview for Regional Technical ForumApril 7th, 2009

Jack CallahanBonneville Power Administration

2009 RTU Service Pilot2009 RTU Service Pilot

Summer of 2009600 Rooftop Units Up to 20 utilities2 to 4 Program Delivery Contractors (PDC)Pre/Post metering for 120 + unitsUse, test and develop M&V Protocol

2009 RTU Service Pilot 2009 RTU Service Pilot Projected TimelineProjected Timeline

April 10, 2009 - Final selection of utilities

May 1, 2009 - Final selection of PDC’s

May 2009 - Pilot Kick-off meetings

July – Nov - 600 RTU's serviced

Questions?

Rooftop Unit OpportunityRooftop Unit OpportunityJack Callahan

Bonneville Power Administration

Presented to Regional Technical ForumApril 7th, 2009

Existing RTUs Existing RTUs

500,000 + RTU’s in the regionKnown problemsKnown fixesScalable Solutions

RTU Tools & TechniquesRTU Tools & Techniques

Palm Pilot toolFlow plate

rik

Rooftop Unit (RTU) Efficiency Rooftop Unit (RTU) Efficiency Optimization StrategiesOptimization Strategies

A. EconomizerB. Refrigerant cycleC. Thermostat D. Other

Research and Pilot GoalsResearch and Pilot GoalsMeasured Energy Savings

RTF M & V protocols Feedback to Service Providers

BPA Long Term RTU PlanBPA Long Term RTU Plan

Ongoing Research2008 60 unit Pilot2009 600 unit Pilot RTF approved M&V Protocols2010 Region-wide Program

Questions?