ENERGY STAR Climate Controls: A Potential New Approach June 23, - - PowerPoint PPT Presentation

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ENERGY STAR Climate Controls: A Potential New Approach June 23, - - PowerPoint PPT Presentation

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ENERGY STAR Climate Controls: A Potential New Approach June 23, 2014 Abigail Daken, U.S. EPA Doug Frazee, ICF International 1 Agenda Welcome & Introductions What is ENERGY STAR? Brief history/background of specification

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ENERGY STAR Climate Controls: A Potential New Approach June 23, 2014 Abigail Daken, U.S. EPA Doug Frazee, ICF International

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of specification
  • Technologies

− Overview of technologies & commonalities

  • Considered Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of specification
  • Technologies

− Overview of technologies & commonalities

  • Considered Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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What is ENERGY STAR?

  • ENERGY STAR is a voluntary government-backed

program dedicated to helping individuals protect the environment through superior energy efficiency

  • ENERGY STAR is the national symbol of energy

efficiency, making it easy for consumers and businesses to identify high-quality, energy-efficient products

  • ENERGY STAR distinguishes what is efficient/better for

the environment without sacrificing features or performance

  • Products that earn the ENERGY STAR meet strict energy

performance criteria set by EPA

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ENERGY STAR

  • Started in 1992; voluntary

program

  • GOAL: Reduce greenhouse gas

(GHG) emissions through large win-win-win opportunities with today’s energy efficient technologies and practices.

  • Provide credible information to

buyers

  • Work with the marketplace to

capitalize on motivations of individuals

500 1000 1500 2000 2500 3000 3500 2005 2010 2015 2020 2025 2030 CO2 Emissions (MMTCO2)

Buildings Industry Transportation

AEO (2008)

Projected GHG Emissions from Key Sectors through 2030

Source: AEO 2008

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70+ Product Categories Are Covered by ENERGY STAR in the US

Appliances Clothes washers Dishwashers Refrigerators Dehumidifiers Air cleaners Water coolers Heating & Cooling Central AC Heat pumps Boilers Furnaces Ceiling fans Room AC Ventilating fans Water Heaters Home Electronics Battery chargers Cordless and IP phones TV Set Top boxes Home audio Office Equipment Computers Monitors Printers Copiers Multi-function Devices Servers Storage UPS Lighting Residential lamps Residential light fixtures Home Envelope Roof products Windows/Doors Commercial Food Service Dishwashers Refrigerators Freezers Ice Machines Fryers Steamers Hot Cabinets Griddles Ovens Vending machines 6

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of specification
  • Technologies

− Overview of technologies & commonalities

  • Considered Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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Brief history of Climate Controls

April 2010 through April 2012 Traditional specification drafts, Development of Ease

  • f Use (EoU) test and metric

Remainder of 2012 Gather interest and stakeholder support for EoU test round robin; manufacturer tests product in lab with abbreviated EoU test, lab test for EoU does not reflect real user experience Spring 2013 Decision that relying on EoU testing for ENERGY STAR is not feasible Summer 2013 LBNL white paper on Climate Controls certification based on field data from connected products June 2014 New Climate Controls System Approach Memorandum.

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of CC spec
  • Technologies

− Overview of technologies & commonalities

  • New Proposed Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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Energy Saving Opportunities

  • Communicating climate controls save consumers

energy and provide load-balancing benefits to the grid

  • Climate controls can encourage reduced consumption

through consumers engagement (behavioral)

  • Climate controls can reduce consumption through
  • ccupancy detection and automation
  • Some climate controls can enable energy savings in
  • ther loads through integration
  • The time is NOW: communicating climate controls that

focus on energy savings are spreading through market

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Technologies

  • Automated savings vs. behavior modification

– Savings through occupancy detection & automation, or – optimization of HVAC control; use less energy for equivalent comfort,

  • r

– through encouraging occupant behavior change

  • Cloud based vs. in the home

– Solutions may rely on cloud analytics and/or cloud control, or – may have extensive capabilities in the hardware/firmware in the home

  • Stand alone product vs. relying on integration with HEMS or

security systems

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Technologies (cont.)

  • Business models

– Hardware centric – Hardware with external software, cloud/app/web hosted – Direct service to consumers – Consumer service thru utility partners

  • Delivery channels (who is the OEM selling to?)

– Retail – HVAC Contractor – Home security, telecom, or other service provider – EEPS (in partnership with any of the above)

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What do CC systems have in common?

  • All claim to provide comfort to consumers while

using less energy by:

– Adjusting set temperatures automatically or through behavior change – Avoiding/limiting run time in inefficient modes (e.g. backup heat),

  • ptimizing energy source (hybrid systems)
  • Some alert residents to equipment faults
  • Some seek to facilitate other changes in behavior

(e.g. keeping windows and doors closed, closing blinds, etc.)

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of specification
  • Technologies

− Overview of technologies & commonalities

  • Considered Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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Climate Controls Illustrated

In the home in the cloud

Maintain comfort Two-way comms Control HVAC Equip. Occupancy detection Consumer feedback Automatic control algorithms Remote Access Demand response Data collection for savings Consumer data storage Network device Thermostat Core Thermostat Functions

Independent

  • f link status

Residential Climate Control System

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To have a program, we need to…

  • Differentiate systems that save energy
  • Communicate that benefit to consumers
  • Enable participation by a broad range of energy

saving approaches and business models

  • Accommodate innovation
  • Encourage service provider participation
  • …without compromising consumer privacy or

proprietary information

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Consideration of a New Kind of Program

  • Our initial thoughts on how we might accomplish this….
  • Partner is the service provider

– Provides on-going service to consumers – Plays a key role in delivering savings – Has access to data from units in the field

  • Initial qualification of Residential Climate Control System

(RCCS) entails examination of system capability

  • Ongoing qualification requires service provider partner to

periodically submit summary field data demonstrating savings

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Initial qualification: Sample RCCS criteria

  • Capabilities that can deliver likelihood of energy

savings:

– Temperature stability – Bi-directional open-standards based communications – Can either accept and act upon external occupancy data or directly detect occupancy and act upon it to reduce HVAC energy consumption – Can collect room and set temperatures, HVAC run-times and HVAC performance information from fielded systems – Basic DR capability – Retains basic thermostat capability, regardless of link status

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Ongoing qualification and evaluating effectiveness

  • EPA believes an energy savings metric that uses RCCS

data to estimate field savings is technically feasible (HVAC run time, set temperatures, measured temperatures)

  • Metric calculated for each home, then averaged over

statistically significant set of homes representing potential CC users

  • Service provider partners periodically submit averaged

data to EPA

  • Validation of metric with meter data would be particularly

valuable.

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Why a metric based on RCCS data, not meter data?

  • Meter data may not be widely available
  • Closely tied to energy savings
  • Requires fewest assumptions about how the product

saves energy

  • Allows service providers to have a direct relationship with

EPA, without utility involvement…

  • …which ultimately enables companies using retail and

service tech channels to use the ENERGY STAR in marketing their product

  • Simplest solution that is likely to deliver the information

needed for a credible program

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Agenda

  • Welcome & Introductions
  • What is ENERGY STAR?
  • Brief history/background of specification
  • Technologies

− Overview of technologies & commonalities

  • Considered Approach & System Criteria

− Evaluating Effectiveness

  • Questions/Next Steps

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Key Questions for Stakeholders

Send all comments to ClimateControls@energystar.gov by July 14.

  • 1. What is important to your organization about a national

program identifying climate controls systems that save energy?

  • 2. Other suggested criteria for initial qualification and/or

comments on considered criteria?

  • 3. Are there issues with service providers submitting

periodic data?

  • 4. Are further measures needed ensure individual user

data privacy?

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Next Steps

  • Work with stakeholders to:

–Consider other metrics –Develop & refine savings metric

  • Stakeholder participation is key
  • What can you contribute?
  • Further clarify Version 1 program design

–Labeling, what & when –Data submission particulars

  • Minimum performance criteria, or
  • Data reporting to inform future level setting, or
  • Data reporting to evaluate program effectiveness

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Contact Information

Abigail Daken EPA ENERGY STAR Program 202-343-9375 daken.abigail@epa.gov Doug Frazee ICF International 443-333-9267 dfrazee@icfi.com

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Thank You

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Extra Slides

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Potential Metrics

  • HVAC Run-Time

– Furnace Run-Time as a Proxy for Energy Savings – Estimates energy savings by examining the elapsed time of furnace (or AC) operation 𝑔𝑣𝑓𝑚 𝑣𝑡𝑓 = 𝑆𝑈 𝑦 𝑔𝑣𝑠𝑜𝑏𝑑𝑓 𝑑𝑏𝑞𝑏𝑑𝑗𝑢𝑧 𝑥ℎ𝑓𝑠𝑓, 𝑆𝑈 = 𝑔𝑣𝑠𝑜𝑏𝑑𝑓 𝑠𝑣𝑜𝑢𝑗𝑛𝑓

  • Saving Degree-Hours

– Identifies use of energy saving set temperatures – Takes into consideration thermal mass of building and outside temperature

𝑇𝑏𝑤𝑗𝑜𝑕𝑡 𝑒𝑓𝑕𝑠𝑓𝑓 ∙ ℎ𝑝𝑣𝑠𝑡, 𝑇𝐸𝐼 =

𝑏𝑚𝑚 ℎ𝑓𝑏𝑢𝑗𝑜𝑕 ℎ𝑝𝑣𝑠𝑡 𝑥𝑗𝑜𝑢𝑓𝑠

(𝑈𝑠𝑓𝑔 − 𝑈𝑝𝑐𝑡) 𝑈𝑠𝑓𝑔 = 𝑠𝑓𝑔𝑓𝑠𝑓𝑜𝑑𝑓 𝑢ℎ𝑓𝑠𝑛𝑝𝑡𝑢𝑏𝑢 𝑡𝑓𝑢𝑢𝑗𝑜𝑕 𝑈𝑝𝑐𝑡 = 𝑝𝑐𝑡𝑓𝑠𝑤𝑓𝑒 𝑢ℎ𝑓𝑠𝑛𝑝𝑡𝑢𝑏𝑢 𝑡𝑓𝑢𝑢𝑗𝑜𝑕

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