Start to Finish Campus/Base

Transcription

1 Session: Campus Utility Distribution System Strategies Start to Finish Campus/Base Gary Morrissett C.E.M. USMC, Marine Corps Air Ground Combat Center 29 Palms California August 9, 2016 Rhode Island Convention Center Providence, Rhode Island

2 Introduction Energy Manger for base since 2001 Utilities Energy Management Supervisor Project Manager, Utilities Manager, Auditor, REM Over $100M in project just energy Multiple contracting vehicles Innovating technology testing an implementation Not all technology works on all bases Plants get expensive with distance More pipe = more cost Electric, natural gas, and other external sources have to be looked at along with current pricing Plan for the future growth! 2

3 Strategy/ Energy and Security Master Plan Central plant strategy Provide high efficiency plants for tie into major utilities Build or leave infrastructure to build to full potential Lowers manpower requirements to maintain equipment Simplifies systems at Bldg level Requires close buildings for cost Energy management control System Incorporate metering into the building controls Simplify communications Controls and monitoring of each building and system Lowers manpower requirements with visibility to Bldgs Electricity production on base Microgrid control system Cogeneration plant to offset more expensive on grid power PV systems for renewable energy Advanced controls systems for future growth Electrical grid controls Communications infrastructure Individual Marines and Civilians Last level of effort to save energy 3

4 Implementation Utilize ESPC for major infrastructure starting point/plants $57M FY ($5.2M 3.5yr modified to 17 year)(30% to 50% of bill) Cogeneration plant 1 7 MW Solar Taurus 70 turbine with 35 MBTU/Hr HRU ($16M 3.5yr payback 2000) 3 Chiller plants 6250 tons with lines and controls to over 40 buildings and 5 separate chiller upgrades 1000 ton ($)26M 1.2 MW Solar Array Fiber communications End of year funding contracts $90M FY (Army Corps Of Engineers UMCS contract Huntsville) Building controls and metering for 150 buildings and communications Evaporative cooling to chilled water conversions 57 buildings with controls and communications PV systems EIP/ECIP (HQ funded efforts for energy) Building controls and Metering PV systems and metering and communications requirements Interior and exterior lighting with motion controls Upgrade existing chiller plants with high efficiency Mag bearing chillers 1500 tons MILCON $50M Cogeneration plant 2 Two 4.6 MW Solar Mercury 50 turbines staged based on loads with 16 MBTU/Hr HRU each Two 650 ton Absorption chiller units and one 650 ton electric centrifugal Two 20 MBTU/Hr hot water generators Future Local projects M1R1 and M2R2 Due to low electricity costs and SIR/Payback 4

5 Security aspects/mission Assurance Upgrade of incoming power lines from 38KW to 115 KV dual feed (Leatherneck substation) Ability to self generate 90%+ electricity 130,000 MWH required 123,000 MWH potential generation 7 Days supply of fuel for emergency Diesel and propane Load controls capability Building loads by HVAC Grid loads by substation and switches Electrical grid operations 60 switches with redundant line capacity Islanding and Microgrid Working 10 MW Microgrid using Cogen/PV power P1232 Microgrid project to parallel Cogen system and island whole base 5

6 Energy affects Requirements/Progress Energy 30 % (FY %) Water 26% (FY %) Energy savings efforts Project oriented from FY 2000 Individual savings efforts FY2014 Unit Energy Monitor Program Use of meter data Monetary affects FY2000 baseline about $18M FY12015 baseline about $12M (assuming everything operational) One turbine down costs about $4500/day Power production 16.4 MW 2 Cogeneration plants 8 MW PV systems on line by end 24.4 MW Total production capacity Winter peak MW Summer MW Minimum import 5% standard generation Challenges Operations Maximize generation for savings MBTU/1000 Square Feet I can install it but someone else operates and maintains Energy Reduction Progress Current MBTU/KSF = Baseline MBTU/KSF = Projection Line = 30% REDUX Energy Increase Narrative Delayed completion in new Cogen plant Running standard boiler and Absorber chiller to supply heat and cooling to North Mainside Navy construction contract commissioning requirements (Cogen plant 2 not ready) Issues Facilities owns IT, communications and controls and must be maintained Repairs and maintenance and repair personnel trained and contracts support challenges 6

7 Utilities connections Contract required for State utilities to supply Federal Government bases (FAR requirements and GSA area wide) Use as a reliable source of power For reliability do not disconnect from grid Interconnect requirements All power sources require IA and inspection prior to operations Over X MW requires reporting of active generation Coordination Base and SCE/SCG account representatives in constant contact on growth issues and power and gas supply Proper billing accounts and charges can be modified under certain conditions Benefits Stability NEM and Load reduction programs Incentive programs SCE and SCG Learn and understand your local Tariffs Look at your bill! 7

8 Chilled Water Map 8

9 HTHW Map (HTHW vs Steam) 9

10 Controls Map Advance controls systems make monitoring and controls at building and plant level easier with less manpower. Personnel must upgrade skill sets to manage the system with oversight 10

11 Lessons learned Direct burry PVC lines in vaults steel Maintain your systems Failures turn into large scale problems Complex controls programs Staff may not like and may not understand Watch operations staff for minor changes Can have a large affect on billing and operation Like to make changes but are they necessary? Interaction of systems Cogen plants and absorption chillers 11

12 Pictures Gary Morrissett