ENERGY STAR Approaching Smart Grid: Home Appliances Amanda Stevens, U.S. EPA December 1 st -2 nd, 2011 EPRI Demand-Response Ready Technology Workshop 1
60+ Product Categories Are Covered by ENERGY STAR in the U.S. Lighting CFLs SSL Integral LED lamps Residential light fixtures Home Envelope Roof products Windows/Doors Heating & Cooling Central AC Heat pumps Boilers Furnaces Ceiling fans Room AC Ventilating fans Water Heaters Office Equipment Computers Monitors Printers Copiers Scanners Fax machines Multi-function Devices Servers Commercial Food Service Dishwashers Refrigerators Freezers Ice Machines Fryers Steamers Hot Cabinets Griddles Ovens Vending machines Appliances Clothes washers Dishwashers Refrigerators Dehumidifiers Air cleaners Water coolers Home Electronics Battery chargers Cordless phones TV Set Top boxes Home audio 2 2
ENERGY STAR s Approach on Smart Grid EPA, through the ENERGY STAR program, has long encouraged development of intelligence in products, while enabling energy efficiency and thus emissions reductions that persist over the long-term. Examples include, Deep sleep in set-top boxes Power management for monitors EPA sees opportunity to apply the ENERGY STAR program s longstanding commitment to the consumer as various aspects of smart grid are extended to end-use products Consumer value is longstanding brand promise 3
Promote Connected for Immediate & Long Term Value End-use products that use bi-directional communications can interface with the Home Area Network (HAN), enabling new opportunities for energy-savings and consumer convenience, for example: Enhanced energy awareness; disaggregate household energy use down to product level personalized and actionable information. Diagnostics and alerts to minimize periods of reduced efficiency (important convenience factor here too) Enable consumers to take advantage of future programs and rate designs that help them to tailor their energy use to periods when its cheaper or cleaner Consumers must retain ultimate control over product 4
ENERGY STAR Spec Efforts EPA is currently considering Connected enhanced functionality in a number of product specifications under development or revision: Climate Controls (new spec) Room Air Conditioners (revision) Refrigerators-Freezers (revision) Pool pumps (just launched) DOE is developing and validating test procedures for DR functionality 5
Building upon Recommendations in Smart Appliance Petition Coalition of appliance manufacturers and efficiency advocates submitted Smart Appliance petition to ENERGY STAR program in early 2011 Requests EPA and DOE consider smart functionality for: Refrigerators/Freezers Clothes Washers Clothes Dryers Room Air Conditioners Dishwashers Groups have requested smart appliances be eligible for an allowance against minimum performance levels 6
Proposed Approach for Refrigerators and Freezers EPA shared Draft 1 in early November For connected products that deliver both both consumer-oriented enhancements and demand response functionality, EPA signaled in Draft 1, intention to use two complementary approaches: Highlighting functionality on the ENERGY STAR qualified product list Allowance towards minimum energy requirement. Products must be qualified using validated DOE test procedure to utilize allowance 7
Proposed Connected Criteria Refrigerators and Freezers A. HEM Functionality: A set of near term value attributes for consumers, based on discussions with manufacturers and other stakeholders that include Feedback on product s energy consumption Alerts & operational status Remote management B. Embedded delay defrost capability to automatically shift defrost outside peak period C. DR Functionality based upon recommendations made in Smart Appliance petition Future-oriented since programs/pricing/infrastructure not yet in place for most consumers D. Communication standards, open access & information to consumers 8
A. HEM Functionality Energy Consumption reporting Must be capable of communicating self energy-consumption Reporting intervals of 15 min. or less No min accuracy specified, but accuracy of reporting must be made available to interested parties Remote Management Similar functionality to consumer controls on the product Product must not respond to requests that would compromise product performance or safety Status & Alerts either on the product or transmitted DR status (normal, delay load, temporary load reduction) Energy Alerts at least (2) types of alerts relevant to product energy consumption 9
B. Embedded Delay Defrost Capability By default a refrigerator or freezer (with auto defrost) avoids defrosting during the traditional peak period of 3-7PM or as specified by the utility Connectivity not required Immediate grid benefits Must operate as configured after power outages of 24 hours or less 10
C. Demand Response (DR) Functionality Connected refrigerators and freezers must have at least two capabilities for responding to signals from grid (system operator): Delay Appliance Load Capability curtail/shift energy (defrost and ice making or equivalent load) for up 4-hrs expected to be typically scheduled in advance Temporary Appliance Load Reduction Capability deeper load reduction (at least 50%) for up to 10 min. immediate or near-immediate response Continue to seek utility input on DR enabling functionality 11
D. Communication Standards, Open Access & Interoperability DR communications must use HAN standards identified by the NIST SGIP HEM communications standards are not specified, but manufacturers are required to release the following information to 3 rd parties: accuracy of energy consumption reporting, and documentation that enables transmission, reception and interpretation of: Energy Consumption Reporting Remote Management Operational Status & Alerts (if transmitted) 12
D. Information to Consumers Connected refrigerators and freezers that require modules or additional infrastructure: prominent information shall be displayed at the point of purchase and in the product literature Connected refrigerators and freezers that require installation of communication module(s): modules must be easily user installable, and must either ship with the product or be provided to consumers by the manufacturer in a reasonable amount of time 13
EPA Contacts Stacy Angel, US EPA Climate Partnership Protection Division Angel.Stacy@epa.gov Abigail Daken, US EPA ENERGY STAR HVAC, Climate Controls, Water Heaters Daken.Abigail@epa.gov Amanda Stevens, US EPA ENERGY STAR Appliances Stevens.Amanda@epa.gov 14
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Connected in play right now Product Climate Controls Room Air Conditioners Refrigerators- Freezers Dishwashers, Clothes Washers Others - TBD (e.g., pool pumps, dryers) Next Milestone Anticipated Timeline Spec Completion/ Effective Date Draft 3 in Dec 2011 Spring 2012/ Effective Immediately Draft 3 in Nov/Dec 2011 Jan. 2011/ Effective Oct 2012 Draft 1 in Nov 2011 March 2012/ Effective Jan 2013 Smart grid will be considered during next spec revisions (2012/2013) New pool pump spec effort launched late November EPA plans to initiate spec development efforts for dryers next year. EPA Contact Abigail Daken Amanda Stevens Amanda Stevens Amanda Stevens TBD 16
Delay Appliance Load Capability In response to a signal, refrigerator or freezer would: shift defrost cycles beyond the delay period, and either: shift ice maker cycles beyond the delay period, or reduce average energy consumption during the delay period by at least 13% (may be shifted beyond delay period). 17
Temporary Appliance Load Reduction Capability In response to a signal, refrigerator or freezer would: reduce average energy consumption during the 10 minute delay period by at least 50% 18