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Energy Efficiency. Base Operations Command and Control Centers. Gary Morrissett MCAGCC Utilities and Energy Management Supervisor. August 7, 2012. MCAGCC Long Range Plan. Energy Efficiency Required 30% Base line 171 MBTU/sqft Currently 34% savings Energy Security Reliable power

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energy efficiency
Energy Efficiency

Base Operations Command and Control Centers

Gary Morrissett MCAGCC Utilities and Energy Management Supervisor

August 7, 2012

mcagcc long range plan
MCAGCC Long Range Plan

Energy Efficiency

  • Required 30%
  • Base line 171 MBTU/sqft
  • Currently 34% savings

Energy Security

  • Reliable power
  • Renewable energy (DOE goal met 9%, 4.5% generation)

Growth potential

  • Analyze current system with all growth
  • Anticipate utility loads and system requirements
  • Central Plant Strategy

Communications and controls

  • Type of system
  • Flexibility

Microgrid and overall controls strategy EMCS (Energy Managmeent Controls Systems – Direct Digital Controls)

mcagcc public works network
MCAGCC Public Works Network

Incorporates a whole base concept for communications, metering, and controls

  • Cogeneration plant
  • EMCS building controls
    • incorporates metering
    • Water, gas, electric, chilled water, HTHW
  • Chiller plant controls
    • Advanced strategy for efficiency
  • Central Heat Plant controls
  • Water wells controls
  • Waste water controls
command and control
Command and Control

Allows base Facilities to view at specific locations

  • Limits control functions to specific groups requiring access
  • Provides major controls functions and indicators of issues at building level
    • Temperature monitoring and controls
    • Load shedding capability
      • Metering
      • Future building cutoff
      • Future DDC Generator controls
      • Electrical grid substation and switching metering and control
    • Power indication and trouble alerts
  • Emergency Operations Center (EOC) view and access for response to issues
  • Command can take action based on operational views
major systems setups
Major systems setups
  • Two Cogen plants 16.4 MW – must be tied for controls functions
    • 60 switches – fiber controls with loads and voltages
    • 9 substations – fiber controls main breaker and circuit loads
  • 30+ Solar PV systems 4.7 MW – Required metering to utility and control functions due to islanding capabilities and grid operations
    • Additional 3 MW under construction
  • EMCS (DDC)
    • Temperature and on off Control and monitoring
    • “AMI” Metering through EMCS for dumb collection of data
    • Data collection and management – requires servers, switches, and programming
  • Communications network- Fiber/RF
    • Security – limiting access to maintenance crews to save energy
    • DIACAP certifications – Complex process!!!
energy efficiency1
Energy Efficiency

3 ESPC projects

Johnson Controls Inc

$60M Construction $7.2/year Savings

Project 1

Replace 5 chillers with High efficiency

Savings

$400K/year

Project 2

Cogeneration plant

Generates 55,000 MWH electricity

35MBTU/hr waste heat

Payback 3.5yrs

Savings

$5.2M/year guarantee

Project 3 Mod to #2

1.2 MW PV array

Daylighting 12 buildings

3 chiller plants 6250 tons

40 EMCS controls with fiber

Savings

$2M/year

energy efficiency2
Energy Efficiency

Lighting – Replaced savings $600K/year

  • Internal T8 25W w sensors
  • External Induction and CFL w sensors
    • Induction lights ½ wattage of HPS

Controls – savings $600K/year

  • 240+ building controls installations

Chilled water conversions

  • Retrofit A/C to chilled water off main plants and controls installations -
  • Savings $650K/year

Solar PV systems

  • Savings $400K/year
mcagcc loads and power
MCAGCC Loads and Power

Current High MW low MW limit

Summer 27-28 12-13 24

Winter 17-18 8-9

No projects 32-33 17-18

Generation Current MW Future total MW

Cogen 7.2 16.4 +9.2 dual turbine

PV 4.5 7.5 +3.2

Total 11.7 23.9

Power strategy- Develop enough generation and energy efficient projects quickly to enable the base to last until the utility power upgrade is installed. Provide reliable power, islanding capability, and controls functions for automated functions due to low O&M manpower.

o m lessons
O&M Lessons

Controls are the future of energy savings

  • The best building with bad controls = waste

Qualified people are hard to find

  • Advanced training requirements in hardware and software

Advanced controls have special requirements

  • Programming and integration challenges

Operations staffing is lacking training

  • Training budgets cut and # of personnel cut

Too many different controls don’t work!

  • Some bases have 12-15 different platforms
  • Loss of functionality with each integration

Data management is part of controls NOW

  • Required servers, routers, and programming and security!!
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