Ea Prerequisite Fundamental Commissioning - Certain Systems Must Be Commissioned

EA Prerequisite Fundamental commissioning

Certain systems must be commissioned

-HVAC

-Lighting Control

-Domestic hot water system

-Renewable energy

BOD: the information necessary to accomplish owner’s project requirements, including system description, indoor environmental quality certia, references to applicable standards”.

The authority can use sampling strategies for functional testing.   Testing script follows the sequence of operation created by engineer.

BOD Must engage before design-development phase.

Cx plan: -role and responsibility, team directory, schedule of commissioning activities. Updated through the life of project

Owner should update OPR if design modification are made

Design team are responsible for BOD

CxA responsible for Cx plan. At least two similar project experience.

Building envelop does not need to be commissioned.

EA Prerequisite: minimum energy performace

The first step is to determine the climate zone

Option1: Whole-building energy simulation 5% for new construction, 3% for major renovations, or 2% for core and shell compared with ASHRAE 90.1 baseline

Option2: comply with ASHARE 50% Advanced Energy Design.(focus on HVAC and water heating equipment )

Option3: “Core Performance guide”(can not earn credit optimize energy performance)(VAV, and economizer performance, focused)

EA prerequisite: building-level energy metering

Share data, 5 years use

EA Prerequisite: fundamental refrigerant management

Do not CFC in new. Reusing-phase out conversion. Small existing unit are exempt.

VRF improves the efficiency, but need a higher refrigerant charge.

EA Credit: Enhanced commissioning

Option 1. Enhanced System commissioning:

     Path 1: Enhanced commissioning(3)

     Path 2: Enhanced and monitoring-based commissioning

Option 2. Envelop commissioning

Reviewing operation within 10 months of substantial operation is part of enhanced commissioning, not prerequisite

EA: Optimize energy performance

Prescriptive path would benefit from cost and budget by simplified decision-making.

Performance path is a better tool to reach leed platium

EA Credit: Advanced Energy Metering

Install energy metering for: 1 all whole-building energy sources used by building.2

Any individual energy use that represent 10% or more of total annul consumption of the building.

-Permanently installed.

-Storing date for at least 36 months

-Must capable of reporting hourly

EA credit: demand response

1 year contract

Demand response program must tie to BAS(Building automation system) so the two can be designed together.

Not manually and should provided by a qualified DR program provider.

EA: Renewable energy production

Energy calculations can come from the energy calculated by the EA Credit Optimize Energy Performance or the CBECS database.

The unit is cost($) not energy(mwh)

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EA: Enhanced Refrigerant management

Option 1. No refrigerants or low-impact refrigerants ozone depletion potential(ODP) of zero and a global warming potential of less than 50.

Option 2. LCGW+LCODP<100

EA: Green power and carbon offsets.

1/1/2005

Scope 1 emissions are direct greenhouse emission on site, such as fossil fuels burn on site.

Scope 2 emissions are indirect greenhouse emission related with energy through purchased electricity.

Green power and REC(Renewable energy certificates) are only to mitigate scope 1.