approach to energy management
TRANSCRIPT
Rhode Island Convention Center • Providence, Rhode Island
Campus Approach to Energy Management
Session: Campus Approach to Energy Management
Otto Van Geet, PENREL
August 9, 2016
Energy Exchange: Federal Sustainability for the Next Decade
1. Determine Federal mandates and Agency sustainability goals (EE/RE).
2. Survey agency for current and planned EE/RE projects – compare to 1 for “gap”.
3. Conduct a pre‐screen of RE and EE opportunities (using REopt) for each campus. EE opportunities depend on audit data. REopt analysis will estimate lowest LCC and net zero electrical energy options.
4. Review findings of pre‐screen with agency to refine assumptions (e.g. land availability). Optimize between EE/RE opportunities to meet goal and mission.
5. For the remainder of RE necessary to reach goals (after RE and REopt recommendations are consolidated), develop a procurement strategy for purchase of offsite RE.
6. Consolidate EE/RE recommendations (including procurement mechanisms) into a roadmap to meet goals.
FEMP Large Campus Innovative Change (LCIC) Approach
Energy Aspects
Agency Mission
Federal Requirements
Long Term Strategic Plans
FEMP Services
Ongoing Agency Projects
Unique Campus
Conditions
LCICInitiative
Fig 1: The LCIC Initiative helps connect and direct FEMP services to address multiple and specific Campus needs
Energy Exchange: Federal Sustainability for the Next Decade
Planning tool to evaluate RE, EE, microgrid, and operational energy opportunities
Recommends a mix of technologies and an operating strategy that meets client goals at minimum lifecycle cost
– Considers interactions between multiple technologies– Estimates costs and energy savings
Draws on site data, NREL GIS resource data, DSIRE incentive database, and RE technology info
Has been used to assess opportunities at ~800 sites
Technologies currently modeled:– PV– Wind– Solar hot water– Solar vent preheat– Biomass– Waste to energy– Landfill gas– Diesel and natural gas generators– Battery storage– EE based on audit results
Robust and adaptable to meet client goals
REopt Planning Tool
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Energy Exchange: Federal Sustainability for the Next Decade
REOpt: Platform for Energy System Integration and Optimization
4
Energy Exchange: Federal Sustainability for the Next Decade
Energy Efficiency, then Renewable Energy (EERE)
All new buildings should be as efficient as possible with the goal of net zero annual energy.
Determine the energy use and energy cost of existing buildings and infrastructure.
Reduce energy use by behavior, installing EE lighting, HVAC and controls and reducing plug loads.
Install RE (Solar, Wind, Biofuels) to meet remaining energy needs.
Consider District Energy solutions Monitor all site buildings (use FDD) energy performance and
energy sources
5
Energy Exchange: Federal Sustainability for the Next Decade6
Moving from Net Zero Energy Buildings to Net Zero Energy Districts
Net Zero Energy Buildings• EO – all buildings (5000+ SQ FT)
beginning in FY2020 Must Achieve NZ by 2030
• % (DOE = 1%) Existing building NZ energy, water or waste by 2025
Net Zero Energy Districts
Energy Exchange: Federal Sustainability for the Next Decade
http://www.architectureatzero.com/2013‐the‐tenderloin
Net Zero Districts
• High‐Performance Buildings– Rooftop PV/Electric Vehicles, Battery Storage
– Building Automation, Connected campus
• District Energy– Solar gardens, district geothermal and ambient loop heat pumps, industrial waste heat capture, CHP
– Thermal and stationary battery storage
Energy Exchange: Federal Sustainability for the Next Decade8
UNEP District Energy
http://www.unep.org/energy/portals/50177/Documents/DistrictEnergyReportBook.pdf
Energy Exchange: Federal Sustainability for the Next Decade9
Energy Exchange: Federal Sustainability for the Next Decade10
Energy Exchange: Federal Sustainability for the Next Decade11
Stanford SESI
Anticipated to reduce campus emissions to 67,000 metric tons, approximately 68% below current levels, and save 15% of campus potable water.
Energy Exchange: Federal Sustainability for the Next Decade12
Stanford SESI
Energy Exchange: Federal Sustainability for the Next Decade
• Urban Renewable Building And Neighborhood optimization tool
• Open source urban modeling platform built on DOE building energy modeling tools
• Example user interface for design and optimization of Zero Energy Districts
URBANopt
Energy Exchange: Federal Sustainability for the Next Decade
Example Technical Questions
• What is the optimal balance between investing in building energy efficiency and investing in high efficiency district thermal systems?
• What type(s) of district systems should be used to achieve a Zero Energy District?– Is one central district ground‐source heat pump system more effective than several smaller systems?
Energy Exchange: Federal Sustainability for the Next Decade
Example User Interface Mockup
720 KW
1,156 KW
524 KW
449 KW408 KW 94 KW
NREL PV Systems ‐ South Table Mesa Campus
Otto VanGeet 303.384.7369 [email protected]
QUESTIONS?
50 KW