Energy Incentive Program: Retuning Stanley Hall

California Higher Education Sustainability Conference

July 22, 2015

Kevin Ng Harry Stark Assistant Energy Manager, PE, CEM Director Facilities and Engineering

Office of Sustainability and Energy Vice Chancellor for Research Office

The Big Picture

13,000

14,000

15,000

16,000

17,000

18,000

MWh

In 10 years, compounds to +28%

Where’s the kWh?

STANLEY14,224,836 kWh/yr

LSB9,869,501 kWh/yr

SRB19,622,285 kWh/yr

LSA8,381,310 kWh/yr

KOSHLAND8,280,329 kWh/yr

SUTARDJA DAI7,989,952

kWh/yr

LATIMER5,440,802 kWh/yr

HILDEBRAND5,324,315 kWh/yrCORY

5,278,355 kWh/yr

TAN4,498,567

kWh/yr

SODA4,461,056 kWh/yr

HEARST MINING4,403,083 kWh/yr

ETCHEVERRY4,150,040 kWh/yr

HAAS BUSINESS3,292,836 kWh/yr

BARKER3,290,187 kWh/yr

EVANS3,123,047 kWh/yr

BIRGE2,944,234 kWh/yr

Law2,553,703 kWh/yr

GARDNER STACKS2,509,988 kWh/yr

OXFORD TRACT2,296,086 kWh/yr

TOLMAN2,243,526 kWh/yr

Other 60 buildings38,627,174 kWh/yr

Electrical Consumption, by Building, Energy Incentive Program Baseline July 2010 - June 2011

STANLEY

LSB

SRB1

LSA

KOSHLAND

SUTARDJA DAI

LATIMER

HILDEBRAND

CORY

TAN

SODA

HEARST MINING

ETCHEVERRY

HAAS BUSINESS

BARKER

EVANS

BIRGE

Law

GARDNER STACKS

OXFORD TRACT

TOLMAN

Other 60 buildings

Energy Incentive Program • Established in 2010 Operational Excellence along with Energy

Office, Energy Use Policy and Outreach

• Complements existing campus operations and goals

• Program rules:

Carrot vs. stick approach

Square footage apportionment

Roll up by Operating Units

Availability of reliable energy data

Steering Committee oversight

Program Tools

• Energy dashboards

• Monthly statements

Resources on Campus

Organization Research Application and Projects

Center for the Built Environment • Personal comfort systems at Doe Library and Stanley Hall

• HVAC setpoint and deadband reset in Stanley Hall

Electrical Engineering and

Computer Science

• Democratized heating / cooling controls in Sutardja Dai Hall

• sMAP viewer in over 50 buildings

• Fault diagnostic viewer in Stanley Hall

College of Engineering /

Architecture

• Energy audit and analysis of HVAC, lighting and window shades in Energy Biosciences

Building

CITRIS • Pilot project in Sutardja Dai Hall airside systems

The Green Initiative Fund • Smart plugs installation at Carleton and South Hall

• LED retrofit for microscopes in Valley Life Addition

Lawrence Berkeley National

Labs

• Rapid efficiency feedback deployed in over 60 campus buildings

• Evaluate accuracy of forecast by whole building energy algorithm

• Pilot data collection and verification in Mulford Hall using backpack-mounted sensors

Pacific Northwest National Labs • Re-tuning training and assessment of Soda Hall and Hertz Hall

Retuning Stanley Hall Energy reduction tools and strategies: 1. Install electrical submeters (14 total) 2. Survey of ventilation 3. Study and implement chilled water and supply air

temperature reset 4. Reprogram lighting controllers to reduce runtime 5. Install CO2 sensors for demand controlled

ventilation in auditoriums and conference rooms 6. Partner with CBE researchers to study thermal

comfort in office suite 7. Partner with EECS grad students developing fault

detection front end 8. Plan for future retrofits: pony chiller, new HVAC

control system, repair of AHU5 economizer, VAV fume hood

Stanley Hall

Stanley Hall

Model developed by Kevin Ng, UC Berkeley Energy Office, based on two years data, 8/1/2011-7/31/2012

500

1000

1500

2000

2500

3000

30 40 50 60 70 80 90

Ele

ctri

cal D

em

an

d (

kW)

Outside Air Temperature (°F)

Scatter PlotOutside Air Temp vs. Electrictal Demand

Stanley Hall

Stanley Hall

Stanley Hall

Stanley Hall

Are we overcooling the supply air we deliver to the building? • Review 1 year’s data of the

valve position of 402 reheat valves.

• 69% of reheat valves never close below 10% open.

• 16% of reheat valves, on average, are always closed or mostly closed.

Stanley Hall

Partnering with Electrical Engineering Computer Science grad students designing fault diagnostic front end systems to aid in asset management and sustainability.

Retuning Acknowledgement

The information gained and the lessons learned as presented

herein are attributable to these contributors:

• Chuck Frost and Kevin Ng with the Energy Office

• Paul Mathew and Steve Greenberg with LBNL’s Environmental Energy

Technologies Division

• Lisa McNeilly and Joe Martorana with the Office of Sustainability

• Venzi Nikiforov with Energy Management Systems

• Harry Stark and Dave Rogers with the Stanley Hall Building

Management Team

• David Stone with the Strategic Energy Partnership

• David Sasai with Capital Projects

• Tony Yuen, Campus Fire Marshal

• Hui Zhang, Ed Arens, Fred Bauman, Center for the Built Environment

Results

• By the numbers:

• Active relationships and efforts in

campus for continuous improvement

mypower.berkeley.edu/sites/default/files/EMIAnnualReport13.pdf

Year Stanley

Hall

Energy Incentive

Program

Year 1 $5,000

(53,713 kWh)

$874,000

(8,740,207 kWh)

Year 2 $26,000

(255,479 kWh)

$995,000

(9,956,443 kWh)

Year 3

proj.

$23,000

(230,708 kWh)

$1,000,000

(10,000,000 kWh)

Thank you! Discussion?

kevin.ng@berkeley.edu