Baseline Energy Audit Format1 Doc

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Energy Audit
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  Bureau of Energy EfficiencyFormat for Baseline Energy Audit  Format for Baseline Energy Audit [Adopt the following methodology for conducting baseline energy audit inDesignated Consumers industries. Additional information may be obtained, if required and found appropriate.] 1. Give brief description about the plant . a.History of establishment, ownership (public / private / co-operative sector)b.Present Installed capacity and stages of capacity addition (if any)c.Trend of capacity utilization in last 5 yearsd.Trend of monthly production and capacity utilization of last oneyeare.Review of process flow diagram 2.Give the energy scenario of the plant a.Different types of energy sources being used and their % share of contributioni.Primary Energy (Solid Fuel, Liquid fuel, gaseous fuel etc.)ii.Secondary Energy (Electricity)1.Purchased from grid2.Self-generated (CPP/DG sets/Co-Generation)iii.Energy from internally generated by-products or waste heativ.Renewable energyb.Establish the trend of following of last 3 yearsi.% share purchaged electricity from grid to that of totalelectricity consumedii.% share of self generated electricity to that of totalelectricity consumediii.% share of internally generated thermal energy fromwaste-heat, co-generation or by-product of total consumedenergyiv.% Cost of energy to that of total production costv.% share of renewable energy to that of total energyconsumedc.Trend of monthly production and energy consumption (Electrical& thermal) of last one yeard.Share of Energy in various Purposes ( Process, auxiliaries,Lighting etc.)e.Any other as may be deemed fit 3.Establish the energy scenario in gate-to-gate (GtG)concept 2 | Page  a.Develop the gate-to-gate schematic of the plant depicting theenergy input to the plant boundary, internally generated energyand the product output ( Please refer to the case situations in Annexure-A )b.Trend the energy consumption in GtG concept of last 5 yearsc.Establish the Specific Energy Consumption (SEC) in GtG concept 4.Review of Reported Data of DCs a.Complete review of reported data of DCs through notified format( BEE will provide the data sheet of the DC ), the summary sheet of each DC.b.Find out the source of each data which has been reported by DC. The data source may be documents, records, log books, installedmeters and gadgets etc. ItemUnitSource of DataFrequency of datarecording*Method of DataRecording** ProductionPurchasedElectricityAll EnergySources * instantaneous/hourly/daily/monthly/yearly ** manual reading or recording /scada/Automatic MIS c.Reconcile the data with respect to production, typical parameterslike heat rate, specific fuel consumption or any otherobservationsd.Clearly define the inclusions / exclusions of the energyconsumption of colony power, temporary constructions, internaltransportations etc. in the reported data. 5.Review the Process Flow Diagram and PresentMetering System a.Study and review the process flow diagram (PFD). Develop theschematic of the PFD depicting the operating parameters likeflow, temperature, pressure etc. at each input-output stageb.Divide the entire process into key sub-processes or sub-systems. The typical sub-process of the sectors are given below (but notlimited). SectorSub-Processes Thermal Power Plant (coal)Coal handling Plant, Ash Handling3 | Page  System, Steam Generation System, Turbo-Generator system, CWsystem, ESP, Compressed AirSystem Thermal Power Plant (Gas)Turbo-Compressor System, WasteHeat Recovery Boiler, CW system,Compressed Air SystemAluminium (Smelter)Rectiformer, Pot-Lines, Carbon Plant(Green Anode Plant, Bake Oven,Rodding Shop), Cast-House,Compressed Air System, Fume Treatment PlantAluminium (Refinery)Digester system, Cleaning &Refining System, CalcinationsSystem, Steam Generation System,Co-Gen SystemCementRaw Material Preparation System,Cement Kiln, Grinding Section,Captive Power Plant(CPP)Iron & Steel (Integrated)Coke oven, Sintering Plant, BlastFurnace, BOF, Casting Section,Rolling Mills, CPPIron & Steel (Sponge Iron)Sintering Plant, DRI section, EAFsection / IF Section, Casting section,Rolling Mill, CPPFertilizerNitrogen Plant, Urea Plant, SteamGeneration System, CPPPulp & PaperRaw Material Preparation, PulpingSection, Paper Machine Section,CPP, Co-Gen Plant TextileSpinning section, Drying Section,Steam Generation System, CPPChlor-Alakali[ The above sub-processes are indicative only. The auditor may suitably select the sub-process depending upon the material & energy flow andquantum of energy consumed] 6.Study of Sub-Processes a.Define the energy & material flow into and out of each sub-process, process parameters and present metering system for allenergy sources in the sub-process under study. (This should be inthe form of Block Diagrams).b.Investigate the following in each sub-process ParametersWhat to look forValueBrief Description of the Sub-ProcessMaterial Flow NameFlow RateDesignoperating Energy Input Electricity4 | Page
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