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Tuesday, February 07, 2012
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A PSFI multifamily energy audit is a detailed examination of how a multifamily facility uses energy and other controllable utilities, quantification of the buildings energy and water consumption, the fee of energy, technical analysis of the building and associated systems, and in conclusion a set of recommendations to reduce the energy costs. The energy cost reduction will be categorized by building envelope, equipment (mechanical, electrical, plumbing) and operational changes.

The audit will typically include:

 
·         Energy Analysis:
o    An analysis of the existing energy (electric, natural gas, Liquid propane, fuel oil) consumption. A minimum of one year’s bills will be evaluated. Two years are recommended. Evaluate consumption levels and patterns.
·         Maintenance Records:
o    A detailed review of maintenance and repair records.
·         Drawings:
o    A detailed review record Drawings (As-built).
·         Fuel Usage:
o    Normalized fuel usage data with local weather data.
·         Interview Process:
o    Discuss building and its operation with management. The discussions will include building performance, HVAC systems, electrical, and building envelope. Included in the discussions, occupant comfort and complaints.
·         Site visit:
o    Will be conducted using acceptable techniques for building type and size (i.e. small building with independent entries may utilize blower testing, large building with common entrances and hallways utilize visual inspection and measurements to calculate leakage.)
o    Sampling will include 10% of total existing units.
o    All unit types (bedroom count, HVAC system type, location in building) will be taken into account.
o    Field verify blue prints
o    Inventory MEP equipment
o    Identify moisture problems
o    Identify ventilation system
o    Field verify fan operation
o    Assess building airflow
o    Evaluate building envelope
·         Energy modeling:
o     Will be conducted, according to ASHRAE Fundamentals Chapter 31.
·         Economic analysis
o    Account for inflation and discount rates utilizing the Savings-to-Investment Ratio formula.
o    Cost estimates for all energy efficiency measures. Provide back-up for cost estimates. Provide in spreadsheet format for local verification.
o    Calculate energy dollar savings (annual savings, life cycle savings, and show payback period) per recommended efficiency measure.
o    Include benefits to end use bill payers.
o    Identify non-energy related benefits.
·         Mechanical Systems
o    Provide a detailed list of HVAC equipment, include age, capacities, make and model #s.
o    Identify equipment as common area, tenant area and if equipment is central or systems within tenant area.
o    State condition of equipment.
o    Provide combustion efficiencies for combustion equipment
o    Identify distribution systems and state condition of distribution systems and components.
·         Electrical Systems
o    Provide a schedule of lighting, motors, and major appliances.
o    Identify savings, consumption and dollars for retrofits, in common space and units.
 
·         Reporting and Review
o    Deliver - Report including:
§ Executive Summary including Detailed Table of All Measures with
§ Annual Savings in kilowatt-hours and MMBTU
§ Annual Savings in dollars
§ Life of Measure
§ Life Cycle Savings of Measure
§ Estimated Cost
§ Savings-to-Investment Ratio (SIR*) based on Estimated Cost
·         Building Description - Include the following
o    Building Envelope
o    Mechanical Equipment and appurtenances
o    Electrical Equipment and appurtenances
o    Plumbing Equipment and appurtenances
·         All Evaluated Measures
o    Description
o    Rational
 
·         Analysis of Fuel and Electricity Bills
o    Include Savings-to-Investment Ration (SIR): the calculated lifetime dollar savings divided by the cost of the installed measure

 

 

Click on the word "Register" at the bottom and fill out the required fields and you will then have registered user access to PSFI Energy's website. 

 

The benefits of registering

 

-It's Free and Takes Only a Minute!

-Access to Your Client Files 24/7

-E-mails with Energy Saving Tips, Tax Incentives, and Available Rebates

-Access to Member Only Pages and Access to PSFI Energy's Special Programs, Like EAP, H.V.A.C Contractors, Congregational Facilities, and more

-Access to PSFI Energy’s pricing schedule for residential home performance and IRC 2009 required performance testing.

-Access to special discounts and More!

 

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