MIAMI-DADE COUNTY PLANT EXPANSION AND LOOP INTERCONNECTION PROJECT. Competitive Energy Businesses

Transcription

1 MIAMI-DADE COUNTY PLANT EXPANSION AND LOOP INTERCONNECTION PROJECT

2 District Cooling Learning Objectives Miami-Dade County District Loop Interconnect Project related questions District cooling plant related questions Thermal ice storage related questions General plant operations related questions 2

3 NORTH PLANT LOAD (TONS) NORTH PLANT LOAD (TONS) CHILLED WATER LOAD SUMMARY AND CONFIGURATION PEAK LOAD BUILDING 1 CENTRAL SUPPORT CULTURAL CENTER W. FLAGLER MIAMI DADE COUNTY 4 COURTHOUSE STEPHEN P CLARK CENTER 1,120-6 HICKMAN BUILDING CAROL DAYCARE CENTER 70 - JUVENILE JUSTICES COURTS 8 (2014) WEST LOT GARAGE/OFFICE BUILDING COURTHOUSE CENTER OVERTOWN TRANSIT VILLAGE-I OVERTOWN TRANSIT VILLAGE-II TERREMARK - 2, AMERICAN AIRLINES ARENA - 1,900 TOTAL 4,890 3,900

4 Loop Expansion Project Rationale 4

5 MDC s Central Support Loop Original configuration and physical description Built in 1984 and serves 2.5 million ft 2 Serves many of the county downtown facilities and one county-operated facility 6,000 tons capacity Expansion of plant to its current full capacity 7,500 tons chiller capacity 5

6 Central Support Facility 6

7 MDC s North Loop Original configuration as photographed 3,500 tons chiller capacity 1,300 tons ice production capacity 17,280 ton-hours ice storage capacity Two phases of expansion of plant to its current full capacity 8,500 tons chiller capacity 4,400 tons ice production capacity 51,840 ton-hours ice storage capacity 7

8 MDC s Thermal Plant Three fully built out ice vaults Custom built coils from Baltimore Air Coil Modular construction and assembly Hot dip galvanized for an expected minimum service life of 30 years 8

9 Miami-Dade County North Loop Plant 9

10 North Loop Plant 10

11 Interconnect 2200 linear feet of pre-insulated chilled water piping Installed utilizing the micro-tunneling method A depth of 25 feet below the roadway 11

12 PROPOSED CSF/NP INTERCONNECTION (BASED UPON 2009 AUDIT) South Loop Chilled Water Supply Piping South Loop Chilled Water Return Piping North Loop Chilled Water Supply Piping North Loop Chilled Water Return Piping Chilled Water Pump Heat Exchanger Chiller Existing Building Connection Existing Building Connection Existing Building Connection 36 F North Plant Chillers and Ice Vaults 42 F 36 F Existing Building Connection Dedicated Chilled Water Pump Terremark Building Mixing Point 42 F CSF Plant

13 FINAL CSF/NP INTERCONNECTION South District Chilled Water Supply Piping South District Chilled Water Return Piping North District Chilled Water Supply Piping North District Chilled Water Return Piping North Plant 36 F 36 F AAA OTV-1 TERREMARK OTV 2 C.C. 36 F 36 F COURT CTR W. LOT 36 F 42 F ISOLATION VALVES HICK SPCC 42 F MD COURT CSF 42 F CSF Plant CULTURAL FLAGLER

14 Miami-Dade Chilled Water Building Interconnection 14

15 NORTH PLANT LOAD (TONS) NORTH PLANT LOAD (TONS) CHILLED WATER LOAD SUMMARY CURRENT CONFIGURATION PEAK LOAD BUILDING 1 CENTRAL SUPPORT CULTURAL CENTER NORTH PLANT W. FLAGLER MIAMI DADE COUNTY 4 COURTHOUSE STEPHEN P CLARK CENTER 1,120-6 HICKMAN BUILDING CAROL DAYCARE CENTER 70 - JUVENILE JUSTICES COURTS 8 (2014) WEST LOT GARAGE/OFFICE BUILDING COURTHOUSE CENTER OVERTOWN TRANSIT VILLAGE-I OVERTOWN TRANSIT VILLAGE-II TERREMARK - 2, AMERICAN AIRLINES ARENA - 1,900 TOTAL 3,870 5,125

16 Miami Dade District Loop Interconnection 16

17 Project Savings Demand Shift Ongoing shifting of MDC properties from the Central Support Plant to the North Plant Rate schedule modification to a seasonal demand for maximizing demand savings Off Peak versus On Peak plant operation and control for maximizing demand savings 17

18 NORTH PLANT LOAD (TONS) NORTH PLANT LOAD (TONS) CHILLED WATER LOAD SUMMARY SUMMER 2013 CONFIGURATION PEAK LOAD BUILDING 1 CENTRAL SUPPORT CULTURAL CENTER W. FLAGLER MIAMI DADE COUNTY 4 COURTHOUSE STEPHEN P CLARK CENTER 1,120-6 HICKMAN BUILDING CAROL DAYCARE CENTER - 70 JUVENILE JUSTICES COURTS 8 (2014) WEST LOT GARAGE/OFFICE BUILDING NORTH PLANT 10 COURTHOUSE CENTER OVERTOWN TRANSIT VILLAGE- 11 I OVERTOWN TRANSIT VILLAGE- 12 II TERREMARK - 2, AMERICAN AIRLINES ARENA - 1,900 TOTAL 2,770 6,225

19 NORTH PLANT LOAD (TONS) NORTH PLANT LOAD (TONS) CHILLED WATER LOAD SUMMARY 2014 CONFIGURATION PEAK LOAD BUILDING 1 CENTRAL SUPPORT CULTURAL CENTER W. FLAGLER MIAMI DADE COUNTY 4 COURTHOUSE STEPHEN P CLARK CENTER 1,120-6 HICKMAN BUILDING CAROL DAYCARE CENTER - 70 JUVENILE JUSTICES COURTS 8 (2014) WEST LOT GARAGE/OFFICE BUILDING NORTH PLANT 10 COURTHOUSE CENTER OVERTOWN TRANSIT VILLAGE- 11 I OVERTOWN TRANSIT VILLAGE- 12 II TERREMARK - 3, AMERICAN AIRLINES ARENA - 1,900 TOTAL 2,770 9,025

20 Project Economics Demand Shift Up to 8,500 tons possible $480 / ton utility rebate Utility rate structure mod Took advantage of the available seasonal rate rider Enhanced system control BAS system optimization strategies Energy Reduction Delta T improvement From 5 degrees to 11 degrees average Pumping energy reduction Eliminated system over pumping Properly balanced flows and commissioned systems BAS optimization 20% savings Delta T 80% savings thermal storage 20

21 QUESTIONS? 21