California Sustainability Alliance

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Transcript California Sustainability Alliance

BUILDING ACTION PLAN
<<Company>>
Month Year
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TABLE OF CONTENTS
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Audience, Purpose, Scope
Sustainability Team
Building Specific Findings
Measure Selection
Project Plan Timing
Sustainability Scorecard
Appendix
– Measures
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AUDIENCE – SCOPE - PURPOSE
• Audience: Building Team and Asset
Manager
• Scope: Outline the sustainability
improvements that will be implemented
throughout the building
• Purpose: To explain the selection
methodology, timeline and specific
improvement measures
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BACKGROUND
• In September 2012 we made the
commitment to focus on improving our
sustainability
• During September and October we
assessed our current performance and
identified a prioritized opportunity list
• During November we worked through the
funding process
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BUILDING SUSTAINABILITY TEAM
Role
Example Sustainability Initiative Responsibility
Asset Manager (Ownership)
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Senior Director of
Engineering
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Property / Building Manager 
Assistant Property Manager 
Chief Engineer
Perform payback and ROI calculations
Sign-off on upgrade investment(s)
Help make technology trade-off decisions and sign-off on upgrade
investment(s)
Assist with a building audit / analysis
Tenant outreach informing on any changes
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Measure baseline performance and track ongoing results
Investigate costs associated with purchasing “greener” supplies
Ensure overall monitoring and reporting of results takes place
Communicate successes within the team and to other stakeholders
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Assist with a building audit / analysis
Revise policy, processes and procedures
Address use of information from building information systems
Assess more efficient replacement technologies
Measure baseline performance and track ongoing results
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SUMMARY- ENERGY AUDIT FINDINGS
• We performed a detailed site water and energy
audit to identify sources of potential energy and
cost savings
• In general, the equipment and systems work well
considering their age. Efficiencies can be found in
commissioning and balancing of the HVAC
systems. Additionally, balancing can establish
building pressurization requirements.
• The audit found X measures costing under
$XX,000 with a projected simple payback less
than X year(s). Selected measures on next slide.
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MEASURE SELECTION
SEE APPENDIX FOR MEASURE SPECIFICS
Item #
1
2
3
4
5
Totals
Recommendation
Verify and adjust the minimum
oudoor airflow
Control VAV system VFD speed based
on the static pressure needs in the
system.
Reset the VAV system supply air
temperature setpoint
Insulate piping of the heating water
loop. Include all worn insulation on
the roof equipment and domestic
water too
Rebalance the VAVs and adjust the
AHU operating pressure
Estimated
Annual
Energy
Savings
Estimated
Annual
Estimated
Energy Cost Implementatio
Savings
n Cost
Simple
Payback
(yrs)
8,500 kWh
$1,800
$2,200
1.22
15,000 kWh
$3,500
$2,900
0.83
55,000 kWh
$12,000
$1,500
0.13
10,000 kWh
$2,300
$1,900
0.83
65,000 kWh
$13,000
$22,000
1.69
Cost Savings From Measures Recommended
Cost to Implement Potential Savings =
**Total Payback if all Implemented =
$32,600
$30,500
0.94
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MEASURE IMPLEMENTATION TIMELINE
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Measure 1
Measure 2
Measure 3
Measure 4
Measure 5
Measure 6
Measure 7
Measure 8
Measure 9
Measure 10
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SUSTAINABILITY METRICS
See below for the scorecard that will be used to track the success of this program.
Performance
Metric
Baseline
Electricity Usage (kWh/ft2)
Natural Gas Usage (therm/ft2)
Water Usage (cf)
Utility Expenses ($/month)
Cooling Expenses ($/month)
Heating Expenses ($/month)
Landfill Tonnage (cubic yards/month)
Recycle Tonnage
Resource Purchasing
Sustainability Projects Selected
Sustainability Projects Completed
Sustainability Practices in Operation
Greenhouse Gas Emissions (tons)
Sustainability or Energy Efficiency Certification
Total
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Target
Actual
APPENDIX- MEASURE
DETAILS
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MEASURES
This is a list of the recommended measures with more detailed
descriptions that follow in this appendix:
1. Optimize HVAC Distribution Systems Efficiency
2. Improve Ventilation Efficiency
3. Insulate Heating Piping
4. Rebalance the Variable Air Valve (VAV) and Adjust the Air Handling
Unit (AHU) Pressure
5. Eliminate or Downsize Existing HVAC Systems
6. Operate Boiler System More Efficiently
7. Install Daylight Sensors
8. Commission Occupancy and Motion Sensors
9. Coordinate with Nighttime Staff to Minimize After-Hours Lighting
and HVAC Use
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OPTIMIZE HVAC DISTRIBUTION SYSTEMS
EFFICIENCY
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IMPROVE VENTILATION EFFICIENCY
Improve Ventilation Efficiency
Measure Category
Energy Efficiency
Description
Benefits
Costs
Measure Type
Physical Change
Primary Actors
Manager & Engineer
Ensure that minimum outdoor airflow (OSA) rates comply with ANSI/ASHRAE
Standard 62.1 or local code requirements. Additionally, eliminate duct
configurations that impose high friction losses on the system.
Increasing the OSA to required ventilation rates provides energy savings.
Greater ventilation will also improve overall building health and the
occupants’ productivity. The saving will be noticeable in the control of
building pressure. Configuring duct configurations to operate more
efficiently will also reduce HVAC operating costs. This measure will also
assist in obtaining LEED credits.
Increasing the ventilation rate is typically a low cost measure to implement.
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INSULATE HEATING PIPING
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REBALANCE THE VARIABLE AIR VALVE (VAV) AND
ADJUST THE AIR HANDLING UNIT (AHU) PRESSURE
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ELIMINATE OR DOWNSIZE EXISTING
HVAC SYSTEMS
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OPERATE BOILER SYSTEM MORE
EFFICIENTLY
Operate Boiler System More Efficiently
Measure Category
Energy Efficiency
Description
Benefits
Costs
Measure Type
Operational Change (habitual)
Primary Actors
Manager & Engineer
Operate the boiler system more efficiently by turning off the boiler based on
the outside air (OSA) temperature, cleaning boiler surfaces regularly and
reducing boiler operating pressure. The boiler currently runs year round to
address some cold complaints at a few locations even when the outside air
temperature exceeds 80 degrees which suggests occupants may be cold due
to receiving too much air conditioning (which is addressed in another
measure.)
Operating the boiler more efficiently will reduce corresponding energy costs
with little to no loss of comfort (if the A/C is rebalanced at the same time.)
This action will also assist in obtaining LEED credits.
The operating budget typically funds the limited costs associated with
implementing this measure.
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INSTALL DAYLIGHT SENSORS
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COMMISSION OCCUPANCY AND MOTION
SENSORS
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COORDINATE WITH NIGHTTIME STAFF TO MINIMIZE
AFTER-HOURS LIGHTING AND HVAC USE
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