Session: Approaching Net Zero Water, Energy, and Waste Expanding Net Zero Beyond Pilot Sites

Transcription

1 Session: Approaching Net Zero Water, Energy, and Waste Expanding Net Zero Beyond Pilot Sites Paul Wirt Sustainability Programs Branch Chief Army Reserve Installation Management Directorate

2 Army Reserve Net Zero In 2013, the Army Reserve set a goal to expand the Army s Installation Net Zero Program to include Reserve Centers Goals for Army Reserve pilot net zero program: Include at least 1 facility type in each of the 4 CONUS regions: Small/medium Reserve Center Large Reserve Center Equipment Concentration Site (ECS) Area Maintenance Shop (AMSA) Include all 4 properties in the Pacific region Each site will pursue net zero energy, water, and waste Net zero energy will include operation independently off the grid if the local grid is vulnerable to failures 2

3 Phase One: Establishing Demand Baseline The first step toward Net Zero is implementing aggressive conservation measures to establish an accurate demand baseline. The Army Reserve accomplished this in two ways: 1. Metering: AR Metering Program 2. Outreach and Education: BEM Program 3

4 Army Reserve Metering Program Used MDMS data to evaluation consumption at the building level Assessed buildings with acceptable parameters in the form of night and weekend setbacks Issued AR wide Metering Program Tasker to institute immediate setbacks where possible and address discrepancies Multiple Building Comparison Night and Weekend Setbacks 4

5 Army Reserve Outreach and Education BEM Program Providing conservation education at the building level Events Earth Day Energy Awareness Month Newsletters Social Media Website Blog Facebook Twitter Awareness Materials Posters Handbooks 5

6 Phase Two: Expanding Into Net Zero 6

7 Net Zero Recommendations 7

8 Summary of Net Zero Energy Results 8

9 Major Accomplishments Maui USARC surpassed net zero energy in June 2016 and had achieved over 75% water savings through irrigation maintenance and controllers Saipan USARC is expected to achieve net zero energy in FY17 with Full Facility Revitalization; Saipan AAFES by FY19 American Samoa USARC is expected to achieve net zero energy by FY19 with ECIP funded PV and battery system and internally funded efficiency projects 9

10 Phase Three: Expand Using Lessons Learned & BMPs Economical Net zero is often not life cycle cost effective Recommendations that provide near net zero solutions are useful Favorable conditions for net zero include: High utility costs (and no natural gas) Security or reliable service concerns Regional/local supply issues Technical Small AR site sizes restrict technology options (e.g., WTE), but also present opportunities (e.g., rainwater harvesting) Need fully implemented building control system (BCS) to effectively monitor and continuously retune net zero Reserve Centers (underway for AR) Infrastructure Behavioral changes and top down policy changes needed to meet net zero objectives and maintain savings achieved Need facility coordinator to have net zero actions included in official duties Need champion at region HQ to implement projects 10

11 Continued Net Zero Support Track and document successes Monthly calls Publications Briefings Help with implementation Engage regions Develop funding proposals Conduct technology reviews Communicate lessons learned USAR wide Provide NZ Energy status updates on monthly calls Assist with renewable energy generation reporting Evaluate additional Net Zero Sites 11

12 Questions? Contact Information: Paul Wirt, 12

13 Evaluate Additional Net Zero Sites Screen requested site to determine if it is a good candidate If approved, conduct site visit and collect data for recommended net zero analysis (may exclude categories) Conduct standard CEWE analysis Check paths and benefits to working toward net zero Develop report (net zero roadmap or standard CEWE report with net zero discussion) 13

14 Net Zero Water and Waste: Expand Outreach Efforts Add net zero updates to Water and Waste bimonthly calls Identify additional outreach methods Conduct targeted training Encourage publications Review pilot sites and identify specific action items Prioritize sites and projects Address challenges such as how to track waste reduction progress Leverage innovative technologies Apply USAR wide solutions Rainwater harvesting Recycling bins 14

15 Example Net Zero Energy Results Net Zero Requirement: Reduce current estimated energy use by 24%, eliminate the use of natural gas, and supply the remaining demand with solar PV

16 Example Net Zero Results Summary Net Zero Energy: Achievable 25% energy use reduction from future assumed load Solar PV and solar water heating Grid tied microgrid Net Zero Waste: Partially Achievable ~60% waste diversion Community WTE facility (if not built, net zero waste is not achievable) Summary of Recommended Measures NZ Category Capital Cost ($) Utility Cost Savings ($/yr) Net Zero Water: Achievable, Not Recommended 44% water use reduction Rainwater capture for potable water (not recommended) Onsite wastewater treatment (not recommended) Funding options: appropriated (utilities modernization, O&M) O&M Cost Savings ($/yr) Future Annual Utility Cost ($/yr) Utility Cost Savings (%) SIR Energy $378k $48k $780 $48k 100% 1.9 Water $7k $0.5k $40 $1k 44% 1.9 Waste $1.4k $1.4k $820 $5k 30% 15.6 TOTAL $386k $50k $80 $54k 92%

17 Army Reserve Metering Tasker State / Installatio n Site Building Name NORTH CAROLINA NORTH CAROLINA NORTH CAROLINA NORTH CAROLINA NORTH CAROLINA NC004 - ASHEVILLE, NORTH CAROLINA NC007 - CHARLOTTE, NORTH CAROLINA NC007 - CHARLOTTE, NORTH CAROLINA NC026 - GREENVILLE, NORTH CAROLINA Night time set backs Early Start Times Late Shutoff Times High Base Load Data Every Month? 1 Walter Hatch Lee Reserve Center NO NO NO NO YES 15 Charlotte Reserve Center #3 NO NO NO YES YES 1 Charlotte Reserve Center #1 (HQ 108th Division) YES YES NO YES YES Specific Notes No night or weekend set backs evident. Night set backs are not evident, but weekend set backs are. Night and weekend set backs are in place, but HVAC turns on at 0300 hrs every day. 2 CPT Christopher S. Cash AFRC NO No data for 2014 NC027 - HICKORY, NORTH CAROLINA 1 D.W. HUDSON USARC NO NO NO NO YES No night or weekend set backs evident. 17

18 Process 1. Choose sites (nominate and rank) 2. Conduct Net Zero focused Comprehensive Energy and Water Evaluation for sites rated as high and medium priority 3. Analyze net zero pathways 4. Develop recommendations and net zero roadmap 18

19 Analysis Process 19

20 Example Net Zero Water Results Objective: Reduce plumbing potable water consumption, provide remainder from rainwater, and treat wastewater on site. Net zero water is not recommended because rainwater harvesting is very expensive for the location and onsite wastewater treatment is risky due to site flooding. 20

21 Example Net Zero Waste Results Objective: Eliminate solid waste disposed at a landfill by reducing and diverting as much as possible, and treat the remainder at a WTE facility that does not generate landfilled byproducts. Net zero waste is not possible because a WTE facility on the island is unlikely at this time, and if it is built it will likely generate landfilled byproducts. 21