RETScreen Clean Energy Management Software

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1 RETScreen Clean Energy Management Software Dinesh S. Parakh, Program Advisor, RETScreen International Michael M.D. Ross, Training & Applications Expert, RER Energy Inc.

2 RETScreen s Mission: Empower Cleaner Energy Decisions Worldwide

3 RETScreen Overview World s leading clean energy decisionmaking software Energy efficiency; heating & cooling; power generation; and cogeneration Fossil fuels Renewable energy 36 languages covering 2/3rds Earth s population 460,000+ users in 222 countries & territories 30,000+ new users each year 700+ universities & colleges use for training & research Well over $8 billion in direct user savings since 1998

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7 RETScreen Software Suite Downloading and running RETScreen Software Suite will install two separate programs: RETScreen 4 is an Excelbased clean energy project analysis software tool that helps decision makers quickly and inexpensively determine the technical and financial viability of potential renewable energy, energy efficiency and cogeneration projects. RETScreen Plus is a Windowsbased energy management software tool that allows project owners to easily verify the ongoing energy performance of their facilities.

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9 Cumulative cash flows ($) Cumulative cash flows ($) Emission & Financial Analysis Method 1 Method 2 RETScreen Energy Model Userdefined Userdefined Userdefined Energy Green power Other Base case Proposed case Technology Grid electricity Wind turbine Power capacity kw 2,000 Capacity factor % 30% Electricity exported to grid MWh 5,256 Incremental initial costs $/kw 2,000 O&M (savings) costs $/kwh Electricity export rate $/kwh Emission Analysis GHG emission factor T&D GHG emission Base case electricity system (Baseline) (excl. T&D) losses factor Country region type tco2/mwh % tco2/mwh Canada All types % Electricity exported to grid MWh 5,256 T&D losses 8.0% GHG emission Base case tco2 1,167 Proposed case tco2 93 Gross annual GHG emission reduction tco2 1,074 GHG credits transaction fee % 0.0% Net annual GHG emission reduction tco2 1,074 is equivalent to 218 GHG reduction income GHG reduction credit rate $/tco Financial Analysis Financial parameters Inflation rate % 2.0% Project life yr 20 Debt ratio % 70% Debt interest rate % 7.00% Debt term yr 10 Initial costs Incremental initial costs $ 4,000, % Other $ 0.0% Total initial costs $ 4,000, % Incentives and grants $ 0.0% Annual costs and debt payments O&M (savings) costs $ cost proposed case $ 0 Debt payments 10 yrs $ 398,657 Other $ Total annual costs $ 451,217 Annual savings and income cost base case $ 0 Electricity export income $ 788,400 Other $ Total annual savings and income $ 788,400 Financial viability Pretax IRR equity % 34.6% Pretax IRR assets % 12.3% Simple payback yr 5.4 Equity payback yr ,000,000 12,000,000 10,000,000 8,000,000 6,000,000 4,000,000 2,000, ,000,000 Cars & light trucks not used Cumulative cash flows graph Year RETScreen Energy Model Energy efficiency measures project s & schedules Show data type 1 type 2 type 3 type 4 type 5 type 6 type Electricity Natural gas m³ consumption unit MWh m³ #N/A #N/A #N/A #N/A rate unit $/kwh $/m³ #N/A #N/A #N/A #N/A rate RETScreen Cost Analysis Energy efficiency measures project Schedule Unit Settings Schedule 1 Schedule 2 Schedule 3 Schedule 4 Schedule 5 Schedule 6 Description Method 1 24/7 Notes/Range Second currency Method 2 Occupied OccupiedSecond currency Occupied Occupied Notes/Range Occupied None Temperature space heating C Cost allocation Temperature space cooling C Initial costs (credits) Unoccupied UnoccupiedUnit Unoccupied Quantity Unoccupied Unit cost UnoccupiedAmount Relative costs Temperature unoccupied +/ C Feasibility study 3.0 Feasibility study Occupied Occupied cost Occupied Occupied Occupied $ Occupancy rate daily h/d h/d RETScreen h/d Emission h/d Reduction h/d Analysis Energy h/d efficiency measures project Subtotal: $ 0.0% Monday Development Tuesday Emission Analysis Development cost $ Wednesday Thursday Subtotal: $ 0.0% Method 1 Global warming potential of GHG Friday Engineering Saturday Engineering Method cost 2 $ 21 tonnes CO2 = 1 tonne CH4 (IPCC 1996) Sunday Subtotal: Method 3 $ 0.0% 310 tonnes CO2 = 1 tonne N2O (IPCC 1996) Occupancy rate annual h/yr Energy efficiency 8,760 measures 6, RETScreen Financial Analysis Energy efficiency measures project % Incremental initial 100% costs 75% 0% 0% 0% 0% $ 60, % Balance of system & miscellaneous Financial parameters Project costs and savings/income summary Yearly cash flows Base case system GHG summary (Baseline) Heating/cooling changeover temperature C 16.0Spare parts % General $ Initial costs Year Pretax Aftertax Cumulative Length of heating season d 242Transportation project cost escalation $ rate % 2.0% Feasibility study 0.0% $ 0 # $ $ $ Length of cooling season d 123Training & commissioning pd Inflation rate CO2 emission CH4 emission $ % N2O 2.0% emission Development 0.0% $ GHG emission ,000 60,000 60,000 Userdefined cost Discount mix rate $ factor factor % 12.0% factor Engineering consumption 0.0% $ factor 0GHG 1emission 29,232 29,232 30,768 Contingencies type Project % $ % life 60,000 $ kg/gj kg/gj yr kg/gj 40 Power system MWh 0.0% $ tco2/mwh 0 2tCO2 29,817 29, Facility characteristics Show data Interest during construction Natural gas $ 100.0% Heating system 60,000 $ 1, % $ ,413 30,413 29,463 Subtotal: Total Finance Enter number of months 100.0% Cooling system $ 0.0% 1, % $ ,022 31,022 60,484 Incremental cost Incremental Incentives and Include grants $ Userdefined 0.0% $ ,642 31,642 92,126 Total initial costs $ 60, % Show: Heating Cooling Electricity initial costs savings O&M savings Simple payback Debt ratio measure? % Energy efficiency measures 100.0% $ 60, ,275 32, ,401 saved GJ GJ GJ $ $ $ yr Debt $ 0 Balance of system & misc. 0.0% $ ,920 32, ,321 Annual costs (credits) Proposed case Unit system GHG Quantity summary (Energy Unit cost Amount Heating system Equity efficiency measures project) $ 60,000 Total initial costs 100.0% $ 60, ,579 33, ,900 O&M Boiler Debt interest rate % 9 34,250 34, ,150 O&M (savings) costs project $ Cooling system Debt term CO2 emission CH4 emission yr N2O emission Incentives and grants $ GHG emission ,935 34, ,086 Parts & labour project Debt mix payments $ factor factor $/yr factor 0 consumption factor GHG 11emission 35,634 35, ,720 Airconditioning Userdefined cost $ Building envelope type % kg/gj kg/gj kg/gj Annual costs and debt paymentsmwh tco2/mwh 12 tco2 36,347 36, ,066 Contingencies % $ $ O&M $ ,074 37, ,140 Appartment building 2, ,000 28,659 Natural gas % Subtotal: Income tax analysis $ cost proposed case $ 35, ,815 37, ,955 Ventilation Total 100.0% Effective income tax rate % Debt payments 0 yrs $ ,571 38, ,527 cost proposed case Lights Loss carryforward? T&D losses No Total annual costs $ Total 35, ,343 39, ,869 Natural gas m³ 88,546 $ $ 35,419 Electrical equipment Depreciation method Declining balance 17 40,130 40, ,999 Subtotal: $ 35,419 Hot water GHG emission reduction summary Halfyear rule year 1 yes/no Yes Periodic costs (credits) 18 40,932 40, ,931 Depreciation tax basis % $ ,751 41, ,682 Other Annual savings Unit Quantity Unit Depreciation cost rate Amount % Total 2,686 0 cost base case 0 60,000 28, Gross annual $ 0 Net 20annual 42,586 42, ,268 Depreciation period yr 15 End of project life cost $ ,438 43, ,706 Years of Base case Proposed case GHG emission GHG credits GHG emission Natural gas m³ 160,194 $ Tax holiday available? $ 64,078 yes/no No 22 44,306 44, ,012 occurrence GHG emission GHG emission reduction transaction fee reduction Subtotal: Tax holiday duration $ 64,078 yr Annual savings and income 23 45,193 45, ,205 Summary Show data Energy efficiency measures yr tco2 tco2 cost base case tco2 $ % 64, tco2 46,096 46, ,301 project Annual 1 to 1income Electricity export income 134 $ ,018 47, ,320 Periodic costs (credits) Base case Proposed Unit case Year Unit cost cost savings Amount Electricity export income GHG reduction income 0 yrs $ ,959 47, ,279 Userdefined cost $ Electricity exported to grid MWh 0 Customer premium income (rebate) $ ,918 48, ,196 consumption cost $ type unit rate End of project consumption life Net annual cost consumptioncost GHG emission reduction Electricity export rate cost saved savings $ 134 tco2 $/MWh is equivalent 0.00 Other to income 27.2 (cost) yrs Cars & light trucks not $ used ,896 49,896 1,023,093 Electricity export income $ 0 CE production income yrs $ ,894 50,894 1,073,987 Natural gas m³ $ ,194.2 $ 64,078 88,546.3 $ 35,419 71,647.8 Electricity $ export escalation 28,659 rate % Total annual savings and income $ 64, ,912 51,912 1,125,899 Total $ 64,078 $ 35,419 $ 28, ,950 52,950 1,178,849 GHG reduction income 32 54,009 54,009 1,232,858 tco2/yr ,089 55,089 1,287,948 Project verification consumption consumption consumption consumption Net GHG reduction tco2/yr 134 Financial viability 34 56,191 56,191 1,344,139 type unit historical Base case variance Net GHG reduction 40 yrs tco2 5,342 Pretax IRR equity % 50.7% 35 57,315 57,315 1,401,454 Natural gas m³ 160,194.2 GHG reduction credit rate $/tco2 Pretax IRR assets % 50.7% 36 58,461 58,461 1,459,916 GHG reduction income $ ,631 59,631 1,519,546 Heating Cooling Electricity Total GHG reduction credit duration yr Aftertax IRR equity % 50.7% 38 60,823 60,823 1,580,370 Energy GJ GJ GJ GJ Net GHG reduction 0 yrs tco2 0 Aftertax IRR assets % 50.7% 39 62,040 62,040 1,642,409 Energy base case 4, ,204 GHG reduction credit escalation rate % 40 63,281 63,281 1,705,690 Energy proposed case 2, ,324 Simple payback yr ,705,690 Energy saved 1, ,880 Customer premium income (rebate) Equity payback yr ,705,690 Energy saved % 44.7% 44.7% Electricity premium (rebate) % ,705,690 Electricity premium income (rebate) $ 0 Net Present Value (NPV) $ 225, ,705,690 Benchmark Heating premium (rebate) % Annual life cycle savings $/yr 27, ,705,690 Energy unit kwh Heating premium income (rebate) $ ,705,690 Reference unit m² 7,500 Cooling premium (rebate) % BenefitCost (BC) ratio ,705,690 Userdefined m² 2,000 Cooling premium income (rebate) $ 0 Debt service coverage No debt ,705,690 Customer premium income (rebate) $ 0 Energy production cost $/MWh ,705,690 Benchmark Heating Cooling Electricity Total GHG reduction cost $/tco2 (205) ,705,690 Energy kwh/m² kwh/m² kwh/m² kwh/m² Other income (cost) Energy MWh Cumulative cash flows graph Energy base case Rate $/MWh Energy proposed case ,800,000 Other income (cost) $ 0 Energy saved Duration yr Escalation rate % 1,600,000 Clean Energy (CE) production income CE production MWh 922 CE production credit rate $/kwh 1,400,000 CE production income $ 0 CE production credit duration yr 1,200,000 CE production credit escalation rate % Energy delivered 1,000,000 type (MWh) Clean energy 1 Natural gas 922 Yes 800,000 2 No 3 No 4 No 600,000 5 No 6 No 7 No 400,000 8 No 9 No 200, ,000 Year

10 Project Types Energy Efficiency Measures Power PowerMultiple Technologies Heating Cooling Combined Heating & Power Combined Cooling & Power Combined Heating & Cooling Combined Cooling, Heating & Power Userdefined

11 Questions? Download Free at:

12 RETScreen 4 Demonstration: Wind Farm Windfarm proposed for northeast of Brazil (Natal) Ten 3 MW turbines, 90 m rotors, on 90 m towers Wind speed of 7.5 m/s measured at 80m height US$1700/kW installed US$15/MWh O&M costs US $60/MWh export rate Inflation of 3% 20 year project life 70% debt financing at 8.5% interest rate over 15 years Will this attract investment? If not, what improvements can be made? Move to windier (8.5 m/s) site Oversized rotors (2 MW, 90 m rotors) on 105 m towers US$2000/kW installed (more expensive turbines) Seek better financing: interest rate of 6% GHG emissions reductions sold at $30/tonne Photo: Carla Wosniak

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