Effective Useful Life Study (Group A, Deliverable 16) ERICA - - PowerPoint PPT Presentation

Effective Useful Life Study

(Group A, Deliverable 16)

ERICA PETROFSKY (EPF@CPUC.CA.GOV) CA PUBLIC UTILITIES COMMISSION ENERGY DIVISION ENERGY EFFICIENCY BRANCH

Presentation Agenda

Contract language Timeline Measure selection process Studying retention and performance degradation Measures selected Q&A

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Contract Language

Deliverable 16: Effective Useful Life Estimates and Approach Contractor shall review the effective useful life (EUL) parameter… to determine if any updates or adjustments need to be made… the approach must answer the following key questions: 1. What factors impact durability? 2. What are the criteria for uncertain measures that will be studied? 3. Why do some measures last longer than the others? 4. How long do measures actually last? 5. How should the Remaining Useful Life of a measure be determined?

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Timeline

1. Stakeholder info document, webinar, and survey 2. Work plan, measure selection document, and stakeholder response document (https://pda.energydataweb.com/#!/documents/2191/view) 3. Field research plan (year 1)

• 1. Draft and webinar by end of July
• 2. Final by end of August

4. Field research and draft/final reports from September 2019 – September 2021

• 1. Choose new measures each year

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Measure Selection Process

Stakeholder input: simplify

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Measure Selection Process

Stakeholder input: simplify

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

• ----------- Summer 2019
• ---------------- Fall 2019
• ------------ 2019-2021

Measure Selection Process

• 2. What are the criteria for uncertain measures that will be studied?
• Stakeholder input:
• High installation rate; uncertainty; impact on portfolio, savings, and cost-effectiveness
• Challenging RUL-based methodology: add-on equipment and retrocommissioning measures

(5. How should the Remaining Useful Life of a measure be determined?)

• Challenging EUL caps: behavioral, retrocommissioning, & operational; long-lived measures
• Exclude standard practice measures (LED lighting, pool pumps)
• Split on whether to study normalized metered energy consumption (NMEC)

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Measure Selection Process

• 2. What are the criteria for uncertain measures that will be studied?
• Process used:
• High impact (lifecycle savings, contribution to total portfolio uncertainty) measure categories
• High impact (first year savings) measures
• Effort/cost involved
• Ability to use evaluation results
• Stakeholder input
• CPUC and Navigant staff input
• Included electric and gas measures
• Filtered out certain measure types

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Performance Degradation

CONTRACT

• 1. What factors impact

durability?

• 3. Why do some measures

last longer than the others?

• 4. How long do measures

actually last? CA EE EVALUATION PROTOCOLS

• Persistence: changes in net impacts achieved through

installation/adoption of measures over time.

• EUL: median number of years measures are in place and
• perable (retained).
• Performance degradation:
• Technical: technical operational characteristics of measures,

including operating conditions and product design.

• Behavioral: human interaction components and behavioral

measures.

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Measures Selected – Year 1

Measure Selected Priority/Cost Whole Building Retrofit and/or P4P including NMEC analysis (Residential) – gas and electric

• Priority: high
• Cost: $, no site visits or survey; desk review

Food service, gas fryer

• Priority: low, unless can leverage existing efforts
• Cost: $, can leverage IOU research efforts

Heat Pumps and Ductless heat pumps - electric

• Priority: high
• Cost: $$-$$$, requires site visits

Envelope measures - gas and electric (residential)

• Priority: medium
• Cost: $-$$, test if web-based survey results in

meaningful data, otherwise reconsider effort Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Measures Selected – Years 2 and 3

Year Measure Selected Priority/Cost 2 Heat Pump Water Heater - electric

• Medium / $$

Retrocommissioning - gas and electric

• High / $$$

Water heater, tankless - gas

• Medium / $$

3 HVAC controls and Energy management systems (Non- residential) – gas and electric

• High / $$-$$$

Smart thermostats (Residential) – gas and electric

• Medium / $$

HVAC blower motor

• Low / $$-$$$

Process pumps (VFDs, pump repair, other)

• Low / $$$

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A

Q&A

Erica Petrofsky Energy Efficiency Policy Analyst epf@cpuc.ca.gov 415-703-1142

Contract Timeline Measure Selection Performance Degradation Measures Selected Q&A