Blue Sky Thinking in Big Sky Country

Jon McGrew, AIA LEEDHennebery Eddy ArchitectsAssociate Principal

Dan Stevenson, PE, LEEDMontana State UniversityAssistant Director, Facilities Services

Ashley Nored, LEEDHennebery Eddy ArchitectsSustainability Coordinator

STUDENT DEMOGRAPHICS – COLLEGE OF BUSINESS

COLLEGE OF BUSINESS BUILDING SITE: NORTH OF WILSON

Jabs Hall Energy Strategies

Energy Managemento Smart Meteringo Daylight Harvesting/Occupancy

Controlo Demand Based Ventilation

Control

Ventilation Systemso Transpired Solar Collector o VAV with Fintube (low temp)o Heat Recoveryo Operable windowso Ceiling Fans

Heating/Coolingo District Energy Planto Geosourceo Radiant floor in atrium

Envelope & Environmento Excellent Envelope Performanceo Sunshadingo LED Lightingo PV ready roof and electrical

AVERAGE TEMPS

High 57.1

Low 30.8

HEATING DEGREE DAYS

Bzn 8156 (PDX~4500, Juneau ~8800)

How we’ve done it since - forever

COOLING HEAT

MSU EUI’s

LEON JOHNSON + JABS HALL= ~75 KBTU/SF/YEAR

Climate Action Planning – ScopesMSU’s Annual Greenhouse Gas Emissions = 77,376 metric tons equivalent CO2

More MSU’s Level of Control Less

Scope 1 = 23,415 Metric Tons30% of Total

Scope 2 = 20,564 Metric Tons27% of Total

Scope 3 = 33,397 Metric Tons

43% of Total

Can Efficiency, Reclamation and Renewables be effectively integrated to reinvent building energy systems?

Nonconventional Systems Approaches: Simultaneous Heating and Cooling District Plant.

1 unit electric

Heat Flow:5-6 units in cooling mode

Auxiliary heat exchange:•Steam•Geosource•Solar thermal•Cogeneration heat

Cooling Energy

HeatingEnergy

SHC Heat PumpHeat Flow:5-6 units in cooling mode

Modular Heat Recovery Heat Pumps

Tietz Hall CWS/R extension

Overview of Leon Johnson Plant

Geothermal Integration

LJED Distribution

Early Indicators

Early Indicators Bozeman Average Conditions:

High: 57.1

Low 30.8

SCED

Energy Districts Under Planning or Development

LJED

WCED

SCED

South Campus Energy District

VisCom

H&PE

Romney

NAIC

SUB

AJMJ

Heat Plant

Gaines

Geosource

Balance of Plant

Transpired Solar Air Collector

Solar Collection Technologies

Additional First Cost ~$15/sf Installed

Simple Pay Back ~7-8 years.

10-30 DegreeTemperature Rise

Mid Range Planning

Mid-Range Planning

District Regeneration and

Geothermal Energy

Firmed Renewable Solution

Auxiliary EPC

-

10000

20000

30000

40000

50000

60000

70000

80000

90000

100000

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

2036

2037

2038

2039

2040

MT

eCO

2

Year

Montana State University Climate Action PlanCO2 Equivalent Reductions - Phase One, Two, and Three

Revised August 1, 2011

Energy Conservation Culture Program

Phase One HVAC EPS Lab VAV Retrof it

Phase One HVAC Cobleigh Retrof it

Phase One HVAC Wilson Retrof it

Phase One HVAC Sub L/HVAC Retrof it

Lighting Retrof its - Phase One

Exterior Pole Mount Lighting

Exterior Building Lighting

Phase Two Env &HVAC Projects

Auxiliary EPC

Phase Two Lighting & Plug Load Projects

Phase Three Env & HVAC Projects

Leon Johnson HVAC

NW District Energy Plant w/Geothermal

Staf f Commuter Reductions (10%)

Student Commuter Reductions (10%)

Fleet Fuel Ef f iciency Improvements

Green Purchasing and Waste Minimization

Refrigerant Management Program

Firmed Renewable Solution

District Regeneration and Geothermal Energy

Emissions Af ter Reductions

50% Below 2009 Emissions

Business as Usual Projection

.

Energy conservation alone doesn’t make an effective ClimateAction Plan. The long term integration of Renewable Energy,specifically Geothermal and firmed Wind energy are drivers of a long term plan.

Questions?