The three level guidance of energy audit activity

The three level guidance of energy audit activity Official Guidelines for energy audits Ministry of Trade and Industry Audit models, Guidelines for reporting and implementing audits for different sectors Motiva Oy Energy Auditor’s Handbook Motiva Oy 26. 10. 2004

Starting of energy audits • The company’s special needs, targets • The content, meaning and instructions of energy auditing procedure supported by the ministry • Voluntary energy conservation agreements • Links of energy auditing to environmental, quality and other functional systems or procedures of the company • Resources for auditing (own work or outsourcing) • Bidding • Evaluation of the tenders • Decision of energy auditing Filling the forms for subsidies , Decision of the support Start 26. 10. 2004

The same targets in every audit model • Comprehensive study • Heating/electricity/fuels/renewables/water costs and energy consumption • Results: • Break down of consumption • Better understanding about energy costs, energy consumption etc. • Proposals for saving measures n n Economy (savings, investments… n 26. 10. 2004 Justification Other effects and impacts

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Energy Analyses in Industry Report Model (MOTIVA) 6. Process 4. Building 2. Basic info 5. Process services 3. Consum ption, costs TABLE 2 Savings € TABLE 1 Kauppa- ja teollisuusministeriön tukema energiakatselmushanke DNro: 333/954/93 Päätöksen pvm 30. 12. 1993 JP-TALOTEKNIIKKA ENERGY ANALYSES REPORT Company Ltd Helsinki 5. 9. 1999 Company Oy Jaakko Pöyry Group PL 27, 00131 HELSINKI Puh. 09 - 46911 Fax. 09 - 4691 311 26. 10. 2004 1. Summary - text - tables 1, 2 - econ. prof. - Sankey diagram - process block diagr. 7. Saving measures and economy Cons. now Electr. Saving Invest. measur. 1 pot. Saving measur. 2 : : Fuels Total Water Total Savings € 0 1 2 3 -4 5 - Invest. € Pay back period A p p.

Energy audits in industry Energy audit • process service systems • facilities Energy analysis • processes • process sevice systems • facilities Energy audits in process industry will be carried out in two phases 26. 10. 2004

• Energy • • analyses for process industry • Audit, phase 1 • Audit • report • Phase 1: Factory audit • Survey phase = Factory audit carried out by a team • of professionals • Report of the factory audit (Preliminary Plan for Energy Saving) • • • energy breakdown, saving potential • • • saving proposals • • • needs for Complementing Analyses, rough saving potential and profitability, preliminary project plans • Phase 2. Complementing analyses • • • saving meas. . • • • training • • • . . . • CA • report • Budjeting • Complementing analyses • CA • report • • • More detailed • studyof • saving potential found in • factory audit • Report • • • measures • • • saving potential • • • investments • • • pay back period • Strategic • planning • of the unit • • • Strateg. invest. • • Scheduling • Annual Reports to • the Finnish • Industrial • organisations 26. 10. 2004 • PES • Plans for energy saving • (requirements of Agreement of Energy Saving) • • • potential / targets • • • shedules • and costs

Energy efficiency in process services Example: Load and energy efficiency analyses of compressed air systems 95 120 90 100 80 75 70 65 Week end 60 time Electric load [k. W] 85 80 60 40 20 0 1 11 21 31 41 51 61 71 81 91 101111121131141151161171181191201 time [s] Electric load change (15 min average) during a week • • Idling and working load need of compressed air and possibilities to replacements pressure level, condition of the network production costs, efficiency of use energy efficiency of production of compressed air, possibilities to improve the efficiency • heat recovery etc. 26. 10. 2004

Total consumptions, energy costs, saving potentials and investments of 20 energy audits in the industry sector with total energy consumption of 70 -500 GWh/a during the period 1992 -2002 26. 10. 2004

Energy savings potential found in energy audits (in industry in Finland) • • • Fuels 10 -15 % • • Average pay-back time for investments 2 -3 years Electricity 4 -8 % (even lower in process industry) Water 10 -15 % About one third of the savings potential can be realised without major investments (operational measures) • Two thirds of the savings potential will be realised during next 3 -5 years period after the audit 26. 10. 2004