6/3/13 ¡ 2012 IECC with WA State Amendments COMMERCIAL PROVISIONS LISA ROSENOW N O R T H W E S T E N E R G Y E F F I C I E N C Y C O U N C I L L I S A @ P U T N A M P R I C E . C O M DUANE LEWELLEN L E W E L L E N A S S O C I A T E S , L L C L E W E L L E N L L C @ G M A I L . C O M Energy Source Metering ENERGY Energy End-Use Metering METERING & Energy Consumption Measurement ENERGY Devices CONSUMPTION Data Acquisition MANAGEMENT Energy Information Display 1 ¡
6/3/13 ¡ Energy Metering Benefits of Energy Metering & Monitoring “What do a building’s energy meters and an automobile’s gages for speed, gas, oil, water and engine temperature have in common? They control nothing, but provide vital information to help a design engineer or operator maximize equipment operations.” Recommended resource – Plourde, Jim. “ Making the Case for Energy Metering” ASHRAE Journal, April 2011 2 ¡
6/3/13 ¡ Benefits of Energy Metering & Monitoring “You can’t manage what you can’t measure” and “information raises awareness” W. Edwards Deming, an electrical engineer who developed successful techniques for quality control The purpose of energy metering and energy consumption management requirements in the 2012 WS IECC is to provide building owners with the means to effectively monitor the energy consumption of their building systems. With this information they can: Collect energy usage data on their property holdings Make informed building system management decisions Evaluate the efficiency of energy conservation measures Troubleshoot higher than expected energy consumption Diagnose potential system operational issues Energy metering Buildings shall be equipped Metering categories: to measure, monitor, Section C409.2 – record and display energy Energy source consumption data for each energy source and end use Section C409.3 – category per the provisions of Energy end-use Section 409 to enable effective energy management. For existing buildings, metering is only required for Required for all buildings replacement systems and with a gross conditioned equipment if metering was floor area greater than required when the building 50,000 SF was constructed 3 ¡
6/3/13 ¡ Energy source metering Electrical energy - All electrical Energy sources: energy supplied to the building and Electrical energy its associated site. Includes site Natural gas and liquid fuels lighting, parking, recreational facilities, and other areas that serve District energy the building. Site generated renewable energy Liquid fuels – Includes diesel, Energy source meters shall collect fuel oil and propane data for the whole building or each District energy - All net energy separately metered portion of the extracted from district steam building systems, chilled water loops, hot Energy source metering is not water systems, or other energy required where end use metering sources serving multiple buildings for an energy source accounts for Renewable energy - All net all usage of that energy type within energy generated from on-site the building solar, wind, geothermal, tidal or other natural sources Solid fuels are not required to be metered Energy end-use metering Energy end-use categories Energy to be metered Electrical, natural gas, liquid fuel, All HVAC systems that provide district steam and district chilled space heating and/or cooling, water that is used by boilers, dehumidification and ventilation chillers, pumps, fans and other Domestic and service water equipment that provides space heating (does not include hot conditioning and ventilation water for space heating) Energy that serves process loads, space water heating or miscellaneous loads does not End-use meters shall collect data for need to be metered the whole building or each separately metered portion of the Various energy end-use exceptions building apply, refer to Section C409.3 Multiple meters may be used for any end-use category, provided that the data acquisition system totals all of the energy used by that category 4 ¡
6/3/13 ¡ Energy Consumption Management Sample energy metering data output – Source: BizEE Energy Lens Energy consumption management Section 409.4 - Measurement Data acquisition: devices, data acquisition Shall provide real-time energy system and energy display consumption data Shall store required data for a Meters: minimum of 36 months Shall have local display or Energy display shall be: automatically communicates A readily accessible and visible data to acquisition system on-site display, OR Provides at least hourly data A web page, OR Current sensors or flow meters An electronic source accessible are allowed for end-use metering directly to building management, OR Source meters shall be digital Accessible to a third party service who then makes the information readily accessible to building O&M personnel 5 ¡
6/3/13 ¡ Scope Thresholds COMMISSIONING Documentation Reporting Commissioning Commissioning is required for: Building mechanical systems Service water heating systems Electrical power and lighting systems NEW - Energy metering systems Prior to passing final inspections or obtaining a certificate of occupancy, documentation shall be provided to the owner showing that commissioning has been completed per the requirements of Section C408. Commissioning requirements have been expanded in the WA State IECC to provide greater detail and specify more requirements 6 ¡
6/3/13 ¡ Commissioning Thresholds Mechanical system Service water heating system commissioning is not commissioning is not required for systems that: required when: The largest service water Qualify under the Simple heating system capacity in a Systems Path, and building is less than 200,000 Are not required to have Btu/h (58,562 W) and there economizer per Section are no pools or in-ground C403.3.1 – Economizers, and permanently installed spas. The building total mechanical No exceptions for equipment capacity is less commissioning of electrical than 480,000 Btu/h cooling power and lighting systems capacity and 600,000 Btu/h and energy metering heating capacity. (C408.2) systems All other mechanical systems are required to comply with the commissioning requirements Commissioning Scope – All System Types NEW – Acceptance of Commissioning plan (preliminary) report Requirements similar to 2009 WSEC The jurisdiction shall receive notification from the building NEW - Preliminary owner acknowledging that the commissioning report Preliminary Commissioning Identify deficiencies found Report was provided to owner. during preliminary testing Figure C408.1.2.1 -- Deferred tests and required Commissioning compliance climatic conditions to complete checklist satisfies this them requirement Progress report of operator Acceptance of preliminary training report is required to pass final inspections Jurisdiction may request copy of preliminary report 7 ¡
6/3/13 ¡ Commissioning Scope – All System Types Final report of operator Final commissioning report - training - Training shall All required documentation include documentation review shall be delivered to the owner and hands on demonstration of Results of performance testing normal and emergency Air and hydronic system maintenance procedures. balancing reports List of deficiencies found and The final commissioning report is corrective measures taken or not required for a certificate of recommended occupancy as there is often a delay due to testing that can only Record documents that convey a record of the alterations to the be completed during specific climate conditions. original design O&M manuals for all equipment requiring maintenance that Refer to specific includes a narrative of how each commissioning requirements system is intended to operate for each system type Design Loads and System Sizing Mechanical Equipment Efficiency Tables MECHANICAL Mechanical System Controls SYSTEMS Loading Dock and Parking Garage Ventilation Dampers Energy Recovery Duct, Plenum & Shafts Piping Insulation Fan Power Economizers Hydronic System Provisions Variable Air Volume Systems Cooler & Freezer Mechanical Systems Service Water Heating System Provisions 8 ¡
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