NEWAS - Summer 2015

8/26/2015

Field

House

NEWAS

Summer 2015

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Anil Navkal Lead

Jordan Altaffer Rising Junior & Summer Intern

Frank Cai Rising Sophomore

Dunn

Gymnasium

J. Everett

Collins Center

AHS Energy Usage Study

Moto

When nothing is happening,

Nothing should be used.

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Saving energy?

… Make it easy and obvious

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Motivation

• Validate and quantify “unoccupied” energy usage
• Green study grant for plug load analysis
• Augment and enhance HVAC plant documentation
• Explore HVAC plant for X-STEM 101 ?
• Use of analytics – Saves energy & dollars?

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Methodology

• Metasys Trend Data Analysis
• Plug Loads
• Inventory
• Locations
• Approximate energy usage
• Digital / Pneumatic thermostat mapping
• Recommendations
• Lessons learned

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Metasys �Electrical Trend Analysis

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Aug 6 – Aug 20

1

Service Entry

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Trend Analysis Methodology

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• 6 trends for each CT
• kW, kWh
• kVAR, kVARh
• kVA, KVAH
• Analyzed only kWh
• AHS Billed for (G3)
• kWh
• Peak kW max
• Off peak KW max

Electricity Used – Full day

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Electricity Used – Nights (7 PM – 7 AM)

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Frank Cai

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Weekly : Aug 6 - 12

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Weekly : Aug 13 - 19

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2 Weekends – Aggregate

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Frank’s Blog entry for today..

:�I was a bit uneasy about whether or not I should be involved (in this effort), because I figured that a few high school students wouldn't be able to handle this kind of responsibility. Nonetheless, I decided to give it a shot. I am so glad that I decided to take this wonderful opportunity. ��This has truly been a unique learning experience, for I have learned an incredible amount and also have been immersed in what I was doing.

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If I had a chance to do this all over again, I would, without a doubt.

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I certainly did not envision spending the summer working on an elaborate energy saving program, but I am really glad that this was the case.

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Thanks everyone!!!

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Jordan

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Nightly Use: Aug 6 – Aug 25

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Nightly electricity usage - Aggragate

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AHS – Annual Electricity Usage

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Plug Load Study

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2

Plug Load Analysis �Using BERTs

• 4 Configured to work on AHS wifi
• Only two reachable
• Data reliability questionable
• Needs lot more IT support
• Independent data store not integrated with Metasys
• Kill-A-Watt meter used instead

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Data

Findings

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• iPad – Cart
• MAC Notebooks – Cart
• Overhead Projectors
• Refrigerators
• Small
• Big
• Printers
• Large
• Medium
• Small

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Digital / Pneumatic �Thermostat Mapping

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3

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Total Pneumatic - 61

Level-1 0

Level-2 23

Level-3 22

Level-4 16

Updated list

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128

120

103

104

105

106

107

123

130

Recommendations

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4

Electrical Distribution

• Documentation
• Schematics for AHS needed ASAP
• Electrical Distribution Directory – Make it readable
• Sub meter strategy
• Create a Circuit Diagram for AHS (Must)
• Select circuits that use more than $20 a night
• Select light loads if clearly controlled from a breaker (Start with DL)
• Isolate functional units
• Collin center (1200 A)
• Sub meter
• Andover TV
• Collins center
• Music Room
• Shut off all non essential systems when not used
• Selective control (Schedule) over each sub metered circuit

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Metasys Recommendations

• Generate weekly reports of manual overrides
• Permanently Trend kWh and kW every 15 min for all CTS (No overrides)
• Audit current schedules
• Missing Room to Zone to AHU mapping
• Summer needs assessment

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Miscellaneous Recommendations

• Refrigerators for staff
• Consolidate
• One per department?
• Same size (and brand) across district
• One per Wing
• Should be turned off during summer (Policy)
• Increase awareness for cost/month (Stickers?)
• Incandescent lamps
• Offer free LED replacement
• Computers
• Unplug during summer
• Implement LOM Auto shutoff during unoccupied hours
• Lighting
• Install zone based Proximity control
• Install light sensors for areas that have ample external light
• Water Fountains
• Covered separately

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Ideas for dashboard

Display energy usage data prominently

• Data per CT
• Daily (Occupied?), Nightly (Unoccupied?), Weekly, Weekends
• Class room temp data
• Per student energy usage (Therms, kWh, $$)

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Display Terminal

• Enable interactivity with audience (Location choice – Cafeteria)

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Add Qty, Annual energy used and $$ savings

Trend Analysis: Today & Near Future (2015)

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Long term: Trend Engine Analytics (TEA)

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Educational Project Ideas

• Data Mining with customized reports
• Usage change
• Policy exceptions and violations
• Overrides
• Year over year, Month over month, Week over week, Weekend usage
• Visualization
• Web based
• Using modern packages like D3
• Educational Institutes around Andover
• Philips Academy
• GLTS
• Merrimack Collage

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Lessons learned

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5

BERTs

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• Needs lot more IT support
• Independent data store not integrated with Metasys
• Possible future use

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Watch for measurement errors

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Watch for measurement errors - 2

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Takeaway

• Waste Management
• Stopping waste pays for itself
• Its everywhere
• So are the opportunities
• Heighten awareness (think dashboards!)
• No one benefits from waste
• Visualization of waste - highly effective feedback
• Using local drive storage is risky
• Carry a USB drive
• On line learning
• Its free if you know where to look
• Blogging lives!
• Trust comes with responsibly

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Thanks!!

Jordan Altaffer

Frank Cai

Dwayne Scruton

Janet Nicosia

David Ovellette

Joseph Piazza

AHS Janitors

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It takes

A team

Metasys - Backup

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Metasys Equipment�Topology

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CTs

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To Do list

• Finish Inventory (team)
• Refrigerators
• 5 Gallon Water Fountains
• Printers
• Computers
• Digital/Pneumatic thermostat inventory (Team)
• Screen shots for bulk data exports from Metasys (Anil)

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Typical Schedule

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