ProCost Version 3.0 Modifications

RTF Update

Kevin SmitKelly Tarp425-889-2700ProCost Version 3.0 ModificationsA registered professional engineering corporation with officesin the Seattle, Bellingham, and Portland metropolitan areas

Telephone (425) 889-2700 Facsimile (425) 889-2725ConsultingEESWhat is ProCost?2Its the Councils energy efficiency measure cost-effectiveness modelCalculates costs and benefits for EE measuresProduces a wide range of results, from different perspectivesDeveloped in MS Excel using various worksheets and the Visual Basic macro functions.Who uses ProCost?The Council: to develop the supply curves for the regional power plansThe RTF: for measure and program cost-effectiveness analysisOthers including utility personnel, consultants, etc. The current version is 2.3 Build 257f

ProCost Structure3

Excel WorkbooksExcel WorksheetsThe main ProCost file contains the ProCost VB macro and performs all the calculations.

The MC_And_Loadshape file contains data that is read into ProCost.Overall Objectives of V3.04ProCost Functionality Changes:Early Retrofit Measures savings value changes within the measure lifetimeSimultaneous Calculations for Retrofit and Lost Opportunity Measures enable different risk credit values for eachMarginal Line Losses line loss varies by time segment and conservation load shapePeriodic Replacements Costs End EffectsUser-defined Time Segments Up to 8760 Hours per YearDocumentationUsers GuideReference Manual

Simultaneous Retrofit and LO5Lost opportunity measures have higher avoided cost threshold (more valuable to acquire if lost otherwise)Requires two input values for the Risk Mitigation CreditNew input row in ProData, Utility System Parameter section

New Column on measure input/output worksheet:

Periodic Replacement Costs6End effects for periodic replacement costs not in V2.3Added the capability to correctly handle the short remaining portion prior to the end of measure life.

Impacts of the following not shown:Present value time zeroInput cost reference yearProgram start dateSponsor shares Used same partial replacement method used for capital cost end effectsEarly Retrofit Capability: Measures installed prior to the end of the useful life of pre-conditions baseline7

Two savings values within a measure lifeRemaining Useful Life

Marginal Line Losses8Marginal line losses not in V2.3Added the capability to handle marginal line losses by time segment (approved by RTF in 2008)

Marginal Line Losses (cont.)9Changes to user input

Results comparison

User Defined Time Segments10Version 2.3 uses Monthly by 4-Segment = 48 bins/yearAdded capability for up to 8760 (hourly) time segmentsKey Components:For testing, EES generated 8760 data from 48 segment dataRestructured MC_AND_LOADSHAPE formatLoad shapes, load factors, and coincidence factors for user defined time segments developed under a separate RTF effortSeparate MC_AND_LOADSHAPE file for each segment type (e.g., 48 and 8760 segments)New header in MC_AND_LOADSHAPE

User Defined Time Segments (cont.)11Challenges:MC_AND_LOADSHAPE file sizeCurrent model requires 8760 segments X 20 years for each load shapeSeparate MC file for each segment type (e.g., 48 and 8760 segments)Current 8760 segment MC file contains just 3 load shapes for testing plus all 20 year price forecasts (65 MB)Suggested calendar function will reduce data to a single year X 8760 segmentsEstimated file size = 64 MB (1 year X 8760 segments X 200 load shapes)Additional options to reduce file size by condensing data to 1 worksheet8760 runtimeMC file takes approx. 45 sec. to open + additional 45 sec. to run ProCostStatic versus dynamic arrays kept static, but using dynamic could improve efficiencyPrecision reduced arrays to single precision from double

Testing 8760 Capability12EES completed initial testing against 48-bin an analysisCouncil staff testing impact of changeInitial findings to be reported on Feb 20, 2013

Documentation13Users GuideHow to use ProCostHigh level getting started guideProCost Reference ManualHow ProCost worksEvery thing else about ProCost

Whats Next?14Prior to 3.0 ReleaseIntegrate the new conservation load shape data and calendar functionStabilize the ProData interfaceAdditional testing and developing of test casesCost reference year, 2006Longer Term ItemsNew MC file formatSource reviewNew capability for capacity and peak kWBatch processor toolOnline version