NEWAS - Summer 2015

8/26/2015

Field

House

Summer 2015

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.

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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DHB – 600 A

- Main Building

- Plug loads

DG -1200 A

- Dunn Gymnasium

- Field House

- Sport director’s office

Collins -1200 A

- Collins Center

- Andover TV

- Some kitchen (?)

M1 – 600 A

- ACCU#1, ACCU#2, ACCU#3, ACCU#4

DE/ATS -1200 A

- Security

- Emergency Lighting, Applications

- Freezers, Kitchen Refrigerates

DL-1200 A

- Lighting

Trend Analysis Methodology

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Copy/paste Excel

Export

Dashboard view

(Excel)

  • Reuse Dashboard excel worksheet
  • Useful for spotting forgotten overrides
  • Highlight cost implication
  • Primitive yet useful prototype
  • Data capture is time consuming
  • Error prone
  • Requires Excel expertise

Pros

Cons

Operator login required

  • 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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DHB

Main Building

Plug loads

DG

Dunn Gymnasium

Field House

Sport director’s office

Collins

Collins Center

Andover TV

Some kitchen (?)

M1

ACCU#1, ACCU#2, ACCU#3, ACCU#4

DE/ATS

Security

Emergency Lighting, Applications

Freezers, Kitchen Refrigerates

DL

Lighting

Electricity Used – Nights (7 PM – 7 AM)

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DHB

Main Building

Plug loads

DG

Dunn Gymnasium

Field House

Sport director’s office

Collins

Collins Center

Andover TV

Some kitchen (?)

M1

ACCU#1, ACCU#2, ACCU#3, ACCU#4

DE/ATS

Security

Emergency Lighting, Applications

Freezers, Kitchen Refrigerates

DL

Lighting

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.

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

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.

Thanks everyone!!!

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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

  • 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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E

W

Pneumatic

Thermostats (Old)

Total Pneumatic - 61

Level-1 0

Level-2 23

Level-3 22

Level-4 16

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E

W

128

120

103

104

105

106

107

123

130

Pneumatic

Thermostats

(Old) [Total 23]

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, $$)

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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Copy/paste Excel

Export

Dashboard view

(Excel)

Today

  • Reuse Dashboard excel worksheet
  • Useful for spotting forgotten overrides
  • Highlight cost implication
  • Primitive yet useful prototype
  • Data capture is time consuming
  • Error prone
  • Requires Excel expertise

Pros

Cons

Operator login required

Export CVS

From

ADS

(AHS, PA)

Analytics

Near Future

ADS server login required

Long term: Trend Engine Analytics (TEA)

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Corrective Action Analysis

Anomalies Analysis

Visualizers

Action Item list

Completed Actions

Reports,

Emails etc.

Monthly /Weekly export

.

Data

App

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

  • 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

It takes

A team

Metasys - Backup

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Metasys Equipment
Topology

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CTs

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DHB – 600 A

- Main Building

- Plug loads

DG -1200 A

- Dunn Gymnasium

- Field House

- Sport director’s office

Collins -1200 A

- Collins Center

- Andover TV

- Some kitchen (?)

M1 – 600 A

- ACCU#1, ACCU#2, ACCU#3, ACCU#4

DE/ATS -1200 A

- Security

- Emergency Lighting, Applications

- Freezers, Kitchen Refrigerates

DL-1200 A

- Lighting

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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2015 08 26 - NEWAS AHS Energy Usage Study - Google Slides