Combined Heat and Power Plant Twin Cities Campus

Transcription

1 Combined Heat and Power Plant Twin Cities Campus

2 Location Map Combined Heat & Power Plant Project Location University of Minnesota Twin Cities East Bank Campus

3 Energy Management Principles Reliable Sustainable Cost-effective

4 Pathway to Combined Heat and Power Proposal Utility Master Plan Old Main CHP Turbine Size Utility Master Plan identified need for new steam capacity due to obsolete 1940 s boilers and significant campus growth Traditional boiler used for the baseline assumption

5 Steam Demand Exceeds Reliable Steam Capacity in ,000 STEAM (PPH) 800, , , , , , ,000 Blr No.3 Unused (1941) COAL RETIRE IN ,000 Blr SG-202 (2000) GAS/OIL - Largest Boiler 98,000 Blr No.4 (1949) COAL/OIL RETIRE IN ,000 Blr SG-201 (2000) GAS/SOLID FUEL FIRM BOILER CAPACITY AVAILABLE (PPH) FIRM BOILER CAPACITY REQUIRED (PPH) 250,000 Blr SG-202 (2000) Largest Boiler - GAS/OIL 185,000 Blr SG-201 (2000) GAS/SOLID FUEL , , ,000 Blr SG-203 (2000) GAS/OIL 190,000 Blr SG-203 (2000) GAS/OIL Major New Buildings

6 PROPOSED BOILER CAPACITY MEETS PROJECTED DEMAND UNTIL , , ,000 Blr SG-202 (2000) GAS/OIL - Largest Boiler STEAM (PPH) 700, , , , , ,000 Blr SG-202 (2000) GAS/OIL - Largest Boiler 98,000 Blr No.4 (1949) COAL/OIL RETIRE IN ,000 Blr SG-201 (2000) GAS/SOLID FUEL 185,000 Blr SG-201 (2000) GAS/SOLID FUEL 190,000 Blr SG-203 (2000) GAS/OIL 200, , ,000 Blr SG-203 (2000) GAS/OIL +250,000 lbs/hr HRSG NEW Heat Recovery Steam Generator: GAS/OIL Major New Buildings

7 Pathway to Combined Heat and Power Proposal Utility Master Plan Old Main CHP Turbine Size Old Main Selected as location to address need: Provides redundant steam production site, a top property insurance concern Addresses existing building condition deficits Affords opportunity for future district chilled water site for campus

8 Mpls Steam System (colored lines are major distribution lines) SE Steam Old Main

9 Pathway to Combined Heat and Power Proposal Utility Master Plan Old Main CHP Turbine Size Combined Heat and Power solution chosen: Most sustainable solution Most cost effective solution

10 CHP Efficiency

11 President Obama s Exc. Order reduce energy use through the expanded use of CHP. encourage investment in CHP, recognize the emissions benefits of technologies like CHP

12 Pathway to Combined Heat and Power Proposal Utility Master Plan Old Main CHP Turbine Size 25MW Turbine recommended: Creates more reliable electrical service to campus Lowers Twin Cities Campus Carbon Footprint by 15% Provides annual and life cycle cost savings Anticipates next steps to include permitting and engineering design

13 EAST BANK:ELECTRIC DEMAND VS. CHP CAPACITY CHP TURBINE BASE OUTPUT (22 MW)

14 EAST BANK:ELECTRIC DEMAND VS. CHP CAPACITY PEAK LOAD (BY 2015) BASE LOAD (BY 2015) CHP TURBINE BASE OUTPUT (19 MW)

15 Cost-effective: Projected Savings Traditional Boiler One - 25 MW Turbine First Cost $ 58M $ 96M Annual Cost/ (Savings) vs. FY14 Annual (Savings)/vs. Boiler Only $ 3M Cost $ 0 $ ( 2M Savings) $ ( 5M Savings) 8 yr return on the marginal investment 30 yr Lifecycle (Savings) $ 0 $176M

16 Utility Rate Sensitivity Analysis

17 Electricity Rates $0.11 $0.10 $0.09 $0.08 $0.07 $0.06 History of Rates: $/Kwhr Components of $/KWhr Rate include: purchased electricity distribution system operation/renewal engineering debt $ CHP 2014 FY Rate/KWhr Consump./Mwh Support $ 12 $ ,979 $38,743, $ ,806 $37,255, $ ,828 $39,338,000 Proforma Including CHP14 $ ,828 $36,481,017

18 Steam Rates History of Rates: $/Mlb $23.00 $22.00 $21.00 $20.00 $19.00 $18.00 $17.00 Components of $/Mlb Rate include: fuel operations and maintenance renewal engineering debt $16.00 $ CHP 2014 FY Rate Consumption Total $ 12 $ ,920 $42,138, $ ,866 $41,004, $ ,963 $43,141,000 Proforma Including CHP 14 $ ,963 $43,947,726

19 Community Involvement Public meetings held to keep neighbors, community organizations and businesses up to date with project: & Introduce project Update proposed change to turbine size Future dates to be scheduled around permitting Organizations invited/attending meetings include: Marcy-Holmes Neigh. Assoc. Sierra Club Hennepin County Mississippi Watershed Mgmt. Org. St. Anthony Falls Heritage Board National Park Service Mpls Park and Rec Board City of Mpls (Planning Dept; City Coor.; Public Works Dept.; Council Members State Legislators West Bank Community Coalition University District Alliance SE Como Improvement Assoc. MN DNR MPCA West Bank Comm. Dev. Corp. Grass Roots Solutions

20 Moving Forward Critical to proceed simultaneously with permitting, design and equipment purchasing in order to be online by winter 15/ 16.

21 Project Description Addresses the deficiencies of the Old Main Utility Building as part of developing a multiple utility services building. Installs a dual fuel Combustion Turbine Generator capable of exporting 20.4 MW to campus Installs a duct fired Heat Recovery Steam Generator Enhances campus electrical power distribution infrastructure Provides dedicated space for future chilled water and package boiler equipment.

22 Project Description - continued Anticipated Total Final Project Cost: Construction Cost $86,502,000 Demolition & Abatement $ 5,498,000 Building Renovation $20,010,000 CHPP Equipment/Systems $52,118,000 Campus Electrical Distribution $ 8,876,000 Non-construction Cost 9,379,000 Total Project Cost $95,881,000 Capital Funding: 2013 Legislative Appropriation (Design) $10,000,000 Facilities Management 3,000,000 University Debt 82,881,000 Total Capital Funding $95,881,000 Estimated Annual Operating Cost: $2,240,000

23 Project Description - continued Schedule Dates: Schematic Design Complete: October, 2012 Procure Initial Long Lead Equipment Air Emissions Permit 6 18 months Complete Construction Documents April, 2014 Complete Construction: January, 2016 Engineer: Engineer of Record: Jacobs Engineering Group Project Delivery Method: Construction Manager at Risk: Adolfson and Peterson Construction

24 Aerial Photo

25 Site Plan Coal Storage Facility Mississippi River CHPP Education Sciences

26 Building Exterior PRESENT DAY VIEW FROM 10 TH AVENUE VIEW AFTER CHPP IS INSTALLED VIEW AFTER FUTURE EQUIPMENT IS INSTALLED

27 Floor Plans Gas Turbine Generator and Heat Recovery Steam Generator (HRSG) Electrical Equipment and Vault Gas Turbine/Generator Steam Piping and Support Operating Floor Steamfitter/Staff and Control Room Steamfitter Area HRSG Gas Turbine/Generator Future Chiller Plant Future Package Boiler Staff Future Package Boiler Steam Piping and Support Basement Floor Future Chiller Plant Control Room Staff and Support Areas

28 Floor Plans Gas Turbine Generator and Heat Recovery Steam Generator (HRSG) Gas Turbine/Generator Electrical Equipment and Vault Future Package Boiler Third Floor Steamfitter/Staff and Control Room Future Chiller Plant Future Package Boiler Upper Future Chiller Plant HRSG Staff and Support Areas Gas Turbine/Generator Future Package Boiler Electrical Equipment And Vault Second Floor Mechanical Equipment Support

29 General Equipment Arrangement Flue Stack Turbine air intake HRSG Turbine

30 Combined Heat and Power Plant Twin Cities Campus