los angeles community college district program ... presentation-8.20...2014/08/20 · los angeles...
TRANSCRIPT
Building for tomorrow’s leaders 1
Los Angeles Community College DistrictProgram Management Office
District-wide Energy Program Overview
Facilities Master Planning and Oversight CommitteeAugust 20, 2014
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LACCD Energy Efficiency
• Early goals were based on the implementation of green, renewable and sustainable energy projects, including:
Photovoltaic Systems (PV) Thermal Energy Storage (TES) Co-Generation Systems
• Implementation based on energy stewardship rather than Return on Investment (“ROI”) or simple payback
Initial Program Vision
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Energy Budget: $128.8 million
Renewable Energy (PV) $122.5M
Measurement Demand & Response $ 6.3M
Remaining Uncommitted $ 0
40J Energy Budget Summary
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Central Plant Project Summary
Conventional Central Plant• Higher Energy Use• Simple to Operate
Co-Generation Central Plant• More Energy Efficient• Training Required for Complex Systems• Thermal Energy Storage = Lower Peak Demand• “TES” Requires Larger Footprint• Requires Turbines and Fuel Cells
2009 2008 2008 2010 2010 2009 2010 ETC2016
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Measurement and Demand Response (M&DR)
M&DR is the primary measurement essential for the long term energy optimization of all campuses
M&DR implementation = significant operational savings resulting in real time information on:
• System Performance• Demand Charge Avoidance
M&DR Successes:• Has been implemented as planned• Project on Schedule • Quantitative results projected for 3rd Quarter 2015• M&DR Benefits:• Peak Pricing Avoidance• Understand Energy Usage at Building Level• Prepares for Prop. 39 Energy Efficiency Projects
Project Summary
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Measurement and Demand Response (M&DR)
LAPC 29 CompletedLASC 19 CompletedLAMC 13 CompletedLACC 8 CompletedLATTC 24 On Schedule for late AugustWLAC 17 On Schedule for Mid SeptemberELAC 23 OngoingLAVC 27 OngoingLAHC 19 Ongoing
College Quantity of Proposed Installed Meters
Installation Status
By College
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Photovoltaic (PV) Summary
• Limited return on investment due to:– Timing on investment;– Incentives being reduced by SCE and DWP; and– Colleges are constrained in their use of PV by roof top and/or
space availability.
• PV program results:– Total installed PV systems are performing as intended– PV was the right solution, but the timing was not optimal
• Recommendations:– Concentrate efforts in metering to better understand usage– Establish a retro-commissioning (RCx) program, which
generally has lower capital costs and a faster return on investment
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Historical Summary of the Installed Price ofPhotovoltaics in the United States, 1998 – 2012
Source: U.S. Dept. of Energy –Lawrence Berkeley National Laboratory 2013
LACCD Installed Cost Per Watt = $10.36/WDC*
*Pricing today is approximately 50% of installed pricing
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Photovoltaic Installations by College
TotalProduction
(kWdc)ELAC East - Roofs 310 CompletedELAC East - Carports 306 CompletedLAHC Harbor - Carports 2,115 CompletedLAVC Valley - Carports 1,021 CompletedLAPC Pierce - Carports 630 CompletedLASC Southwest - Carports 725 CompletedLASC Southwest - Roof 12 CompletedVDK VDK - Carports 322 Completed
LAHC Harbor – Roof Carport 250 CompletedLAMC Mission – Roof Carports 178 CompletedLAPC Pierce - Carports 1,650 CompletedLASC Southwest - Carports 151 ConstructionLATTC Trade - Roof 65 ConstructionLATTC Trade - Carports 253 ConstructionWLAC West - Parking Structure PV 357 CompletedVaries District-WIde 2,280 Completed
College Description (Roof / Carport) Comments
Total kWp Installed 10,626 kWp (10.6 MW)
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LACCD Energy Profile
EUI (kBtu/SF)
EUI Compliance
FacilityOptimal
Performance
LACC 73.9
ELAC 57.6
LAHC 55.7
LAMC 67.4
LAPC 65.5
LASC 56.3
LATTC 42.6 N/A
LAVC 65.3
WLAC 55.4Total Average
60.0 N/A
Performing Adequately;Needs Improvement
Poor Performance; Needs Improvement
Acceptable Performance
U.S. Department of Energy -Colleges/Universities (CA)• Energy Utilization Index (EUI)
Average is 58 kBtu/SF
Optimal Performance =Commissioning,Retro-Commissioningand M&DR
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‐
2,000,000
4,000,000
6,000,000
8,000,000
10,000,000
12,000,000
Electric Ene
rgy Usage (kWh)
Energy Consumption (kWh)
Case Study 1: East Los Angeles College
Facts and Highlights:• Largest college building footprint: 1M+ SF• Highest Enrollment/Attendance: 27,181 students• High Efficiency Co-Gen Central Plant Installed in Dec 2010*
Optimal PerformanceEfficiencies Achieved
*
Future savings realized due to M&DR Project Implementation
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ELAC Co-Gen Central Plant
Plate and Frame Heat Exchanger –Glycol/Water Cooling Process working in conjunction with the TES during on peak hours
Natural Gas Micro Turbines
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Case Study 2: Los Angeles Southwest College
Facts and Highlights:• Sixth largest college building footprint: 500,000SF• Enrollment/Attendance: 7,593 students• High Efficiency Central Plant Installed in Jul 2009*
HVAC issues due to:• Buildings occupied prior
to adopting a mandatory whole building commissioning process
• Deferred Maintenance• Need for training
* ‐
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
7,000,000
8,000,000
Electric Ene
rgy Usage (kWh)
Energy Consumption (kWh) Not Performing Optimally
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Los Angeles Southwest College Central Plant
Central PlantThermal Energy Storage
Farm
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LACCD New Proposed Energy Strategies
• Our focus now to improve energy usage by:
– District-wide compliance with U.S. Department of Energy
Colleges/Universities (CA) Energy Utilization Index (EUI);
– Optimization of existing central plants;
– Retro-commissioning (RCx) of college buildings;
– Demand Side Management;
– Ensuring maximum return on investment (ROI);
– Exploring New Technologies (i.e., fuel cells); and
– Making every design decision with sustainability in mind.
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Thank you