water 202: turning audits and cewwes into successful ... · pdf file432 and the army...
Post on 08-Mar-2018
216 Views
Preview:
TRANSCRIPT
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 107 OCT 2017
Water 202: Turning Audits and CEWWEs
into Successful Projects
Mission Resilience & Sustainability Training
Presented By:Varun Sood – 63rd Readiness Division
Emily Wendel - PNNL Kate McMordie Stoughton – PNNL
Brian Boyd - PNNL
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 207 OCT 2017
Speakers
• Emily Wendel• Pacific Northwest National Laboratory• Building Performance Evaluation
Technical Team Lead• Emily.Wendel@pnnl.gov
• Varun Sood• Sain Engineering Associates, Inc.• Resource Efficiency Manager• 63rd Readiness Division• Varun.Sood.ctr@mail.mil
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 307 OCT 2017
Speakers
• Kate McMordie Stoughton• Pacific Northwest National Laboratory• Engineer – Water Team Lead• Katherine.McMordieStoughton@pnl.gov
• Brian Boyd• Pacific Northwest National Laboratory• Engineer• brian.boyd@pnnl.gov
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 407 OCT 2017
Learning Objectives
• This session will address these questions:
• What are the greatest challenges and opportunities for water projects for each Installation and RSC?
• Which types of projects are typically the most cost effective for the Army Reserve?
• How do I calculate the correct water rate for each project type?
• What resources are available for standardizing water efficiency projects across a region or installation?
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 507 OCT 2017
Project Challenges
Low SIR
Lack of
Command
Interest
Lack of
Opportunities
Using Other
Funding
Don’t Get
Funded
Not My Area
of Expertise
Low Priority
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 607 OCT 2017
What are the largest challenges to successfully
completing water projects at your RSC or Installation?
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 807 OCT 2017
Why Develop Water Projects?
• Aging Infrastructure
• Population Growth
• Regional Droughts
• Increasing Utility Rates
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 907 OCT 2017
Water Audit
• Use a proper checklist to document existing equipment and usage patterns
– Take pictures of nameplate data
– Interview facility maintenance staff
• Use proper tools to document information such as flow rates or building water pressure
– Water pressure gauge
– Water flow bag
– Leak detection tablets
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1307 OCT 2017
Water Balance
• Use the data from the walkthrough to perform an end use analysis
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1407 OCT 2017
Identify Potential Projects
• Plumbing Retrofits
• Fix Water Leaks
• Install Smart Meters
• Reduce Irrigation Use
• Rainwater Harvesting
• Vehicle Wash Recycling
• Reduce Sewer Charges ($ Savings)
• Reduce fixed meter charges ($ savings)
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1507 OCT 2017
How to Fund Projects
• QUTM Funds
• ERCIP Projects
• SRM Projects
• PM Contractor & GPC Purchase
• 3rd party financing – bundle with energy
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1607 OCT 2017
63d Division Initiative #1
Standardizing Plumbing Equipment
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1707 OCT 2017
Objective
• Create a standardized plumbing equipment specification for the entire region
• Specify water flow rate requirements and use proven technologies
• Eliminate expensive replacement parts and reduce equipment failures
• Save water and O&M costs
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1807 OCT 2017
Toilets and Urinals
• Flushometer Toilet Replacement
– Max flow rate of 1.28 gallons per flush
• Tank-type Toilet Replacement
– Install pressure-assisted WaterSense labeled toilet
– Max flow rate of 1.0 gallon per flush
• Urinal Replacement
– WaterSense labeled fixtures
– Max flow rate of 0.13 gallons per flush
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 1907 OCT 2017
Flush Valve Specification
• Install piston type flush valves and eliminate the use of diaphragm valves
• Eliminate the use of battery powered or electronic flush valves to reduce maintenance
• Eliminate flush volume adjustments
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2007 OCT 2017
Diaphragm vs. Piston
Bypass orifice
can become
clogged,
which causes
long flush
cycles and
water waste
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2107 OCT 2017
Restroom Lavatories
• Install tamper proof faucet aerators
• Max flow rates for public restrooms:
– Manual faucets – 0.5 gallons per minute
– Automatic faucets – 0.25 gallons per cycle (retrofits only)
• Max flow rates for private restrooms:
– 1.5 gallons per minute
– WaterSense labeled faucet aerators
• Eliminate battery powered and electronic faucets
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2207 OCT 2017
Showerheads
• Install WaterSense labeled products only
• Install tamper proof showerheads
• Max flow rate of 2.0 gallons per minute
• Eliminate showerhead flow rate adjustment
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2307 OCT 2017
63d Division Initiative #2
Reduce Irrigation Costs
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2407 OCT 2017
Objective
• Started the initiative in response to the CA drought and increasing water fees
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2507 OCT 2017
Advantages
• Xeriscape/native landscape projects help reduce water consumption
• Reduction in grounds maintenance costs
• Visually attractive landscapes
• Drought tolerant
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2607 OCT 2017
Scope of Work
• Remove existing grass turf and plants that require constant irrigation
• Provide chemical treatment, weed fabric, trimming and clearing
• Install new landscape consisting of river rock, boulders, artificial turf and native plant species
• Install drip irrigation (if necessary)
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2707 OCT 2017
Project Funding
• SRM Funds
– Four (4) projects completed
• QUTM Funds
– One (1) funded project
– One (1) unfunded project
• MILCON Program
– Two (2) projects under construction
– Three (3) projects in design phase
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 2907 OCT 2017
Helpful Links
• FEMP Water Efficiency Resources:
– http://energy.gov/eere/femp/best-management-practices-water-efficiency
• EPA Resources:
– http://www.epa.gov/watersense/
• PNNL Resources:
– http://sustainable.pnnl.gov/water.stm
• Alliances for Water Efficiency:
– http://www.allianceforwaterefficiency.org/
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3007 OCT 2017
Emily WendelPacific Northwest National Laboratory
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3107 OCT 2017
Evaluation Program Directives
Energy Independence and Security Act (EISA) of 2007 Section
432 and the Army Comprehensive Energy and Water
Evaluations (CEWE) Policy (23 Aug 2012) requires the Commands
to:
1. Evaluate 75% of installation’s energy and water every 4 years
(floor area may be used as a proxy)
• At least 25% of facilities evaluated per year
2. Conduct comprehensive energy and water evaluations that
must include:
• Energy and water retrofit measures
• Re- or retro-commissioning measures
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3207 OCT 2017
Net Zero CEWWE
Controls Focused CEWWE
Standard CEWWE
Remote Controls Evaluation
Desk Eval.
5 Types of Facility Evaluations
On-Site
Remote
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3307 OCT 2017
Water’s Role in each CEWWE Type
• Net Zero: Deep water retrofits, conservation, and alternative water
• Controls Focused: Newer buildings, so plumbing focused
• Standard: Plumbing, irrigation and rainwater harvesting for vehicle wash
• Remote Controls: Interval meter analysis and benchmarking usage combined with occupancy data from controls
• Desk: Interval meter analysis and benchmarking usage, reviews of past projects implemented and/or identified
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3407 OCT 2017
Overall ARIMD CEWWE Program Impact (FY14-17)
150 sites
$75M in projects
38% of SF
Energy
21% avg. savings per evaluation
10% savings for USAR overall
Water
25% avg. savings per evaluation
6% savings for USAR overall
Waste
47 sites evaluated
Recycling program
improvements
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 3507 OCT 2017
Water Conservation Savings and Investment Costs by Region
Overall Use, Mgal
Water Conservation PotentialInvestment,
$kMgal% of RSC
Use$k
63rd 30 2.6 9% 53 580
81st 39 2.0 5% 23 259
88th 93 9.1 10% 42 524
99th 14 0.2 2% 3 23
Water Conservation Opportunity
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4007 OCT 2017
Economics by Region
RegionStandalone
ProjectsOverall
SPPOverall
SIR
88th 48% 12.5 1.099th 69% 8.2 1.581st 52% 10.8 1.163rd 52% 11.5 1.0
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4107 OCT 2017
Economics by Measure
RetrofitType
Standalone Projects
Overall SPP
Overall SIR
Faucets 89% 1.3 9.5Showers 70% 3.8 3.1Urinals 10% 23.8 0.5Toilets 14% 20.0 0.6Other 23% 7.4 1.6
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4207 OCT 2017
LCCA Calculations
• Economic Life: 15 years• Utility rates• Region• Water billing
WS
MWNE
Plumbing Tool Specific Inputs• Occupant schedule• Fixture types/counts• Fixture operating
parameters (flowrates)
Irrigation Tool Specific Inputs• Landscape type/area• Observed appearance• Irrigation season• Irrigation system
General Inputs
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4307 OCT 2017
Economics• Simple Payback Period• SIR
Water Life Cycle Cost Analysis
Investment Costs• Design• Labor• Equipment• Overhead
Utility Savings• Electric, Natural Gas• Water• $ Savings
1391
Discount Factor
O&M Savings
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4407 OCT 2017
Example 1
Using a Blended Rate for Water Analysis
Water Use
Water Cost
Blended Rate Estimate ($/kgal)
10 79.25 7.925
Sample bill Water Tariff
Use, kgal Cost, $ Blended Rate
2 $17.36 $8.68
3 $18.93 $6.31
14 $36.20 $2.59
Use, kgal Cost, $ Marginal Rate
2 $3.14 $1.57
3 $4.71 $1.57
14 $21.98 $1.57
Example 2
Total $ / Total Use Removing meter fees
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4507 OCT 2017
Tips & Tricks, Common LCCA mistakes
2. When to use sewer rate (Yes for plumbing, Nofor irrigation, vehicle wash, cooling towers)
3. Not capturing O&M impact for alternative water
1. Misinterpreting units from water bills (CCF vs. kgal?)
4. Estimating savings way too high or way too low
5. Large amount of water unaccounted for
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4607 OCT 2017
• Ways to bundle water projects
Across sites
Within a site/building
Project Development: Bundling Water
Measure Category
Total Savings ($/yr)
Investment ($)
Simple Payback (yr)
SIR
Building Envelope $4,784 $18,776 3.9 1.3
Controls $7,440 $12,666 1.7 1.2
Lighting $70,011 $1,087,449 15.5 1.0
Plumbing 1,835 107,686 58.7 0.2
Irrigation $10,042 $66,083 6.6 1.8
Other $413 $1,056 2.6 3.5
Total $94,525 $1,293,716 13.7 1.02
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4707 OCT 2017
FY18-24 QUTM/POM Projects
0
5
10
15
20
25
0
20
40
60
80
100
120
Wat
er S
avin
gs, k
gal
# o
f P
roje
cts
# of Projects
Water Savings
Leadership. Energy. Execution.UNCLASSIFIED / FOUO 4807 OCT 2017
• PNNL can QA simple projects and can help develop more complicated projects
Project Development
top related