PASADENA CITY COLLEGE INTEGRATED ENERGY MASTER PLAN

Pasadena City College

29+ Buildings

29,354,944 kWh Annual Energy Use

2,340,624 $ Annual Energy Cost

2025 Achieve Zero Net Energy

Sustainable Challenges • SStandardizing Building

Automation Systems (BAS) • Hot Water Loop • Central Plant Redundancy and

Reliability • Energy Optimization

- Chiller Plant - Cogeneration - TES

• Unifying Sustainability Plans - Water conservation - Energy management - Master Planning

• Refining targets to reflect

District & Community goals – Energy – Water – Carbon – Waste – Materials

• Path to ZNE • Green Education

– Learning Labs

Energy Savings Outcomes

• FFacilities Master Plan - Path to ZNE

• Integrated Energy Master Plan

Pasadena Area Community College District Sustainability Guidelines • TTES Upgrade

- Energy Savings 66,667 • Cooling Tower Upgrade

- Energy saving 78,921 kWh • Concert Pressure dependent Valves to Independent

- Energy Savings 166,667 • CAV to VAV Conversions

- Energy Savings 203,067 kWh • EMS Controls Upgrade

- Energy Savings 605,068 kWh • Aquatic Center Waster Water Reclamation

- Annual water conservation 806,400 gal

CERRITOS COLLEGE INTEGRATED ENERGY MASTER PLAN

Cerritos College Campus

41 Buildings

13,294,597kWh Annual Energy Use

2,100,000 $ Annual Energy Cost

2025 Achieve Zero Net Energy

Green Cerritos College Environmental Stewardship

• Board Policy 3580 – Environmental Sustainability • Cerritos College Sustainability Plan • Greenhouse Gas Reductions • Energy Savings / Water Conservation • Green Education • USGBC’s LEED standard for projects above $5 million • CCC/IOU Partnership first-of-a-kind Integrated Energy

Master Plan

• Facilities master plan – IEMP overlay

• One meter – over 40 major buildings

• Sub-meters do not isolate different end use

• Data gathered over 3 years to be effective

• Installation of permanent sub-meter is very expensive and time consuming

• Temporary meters when installed are for a few months only

• Facilities master plan and phasing

• Spatial mapping – window, walls, footprint, etc

• Age of each building – Codes determine construction and performance

• Climate files – cooling and heating loads

• Light fixtures – lighting consumption

• Types of mechanical systems – central plant, roof top packaged system, VRF systems, etc

• Energy Upgrades will effect IEMP

D A T A B A S E D A T A B A S E

Energy Model Utility Bills Benchmark

Existing Energy Consumption By Building

Existing Energy Consumption By Building

INTEGRATED ENERGY MASTER PLAN / CERRITOS COLLEGE

Building Consumption by Phase

Emissions Equivalent • 1263 passenger vehicles • 14,285,714 million miles driven passenger vehicle • 675,143 gals of gasoline consumed • 3222 tons of coal being burned

Greenhouse Gas Emissions

Reduction Goals

Strategy Analysis

ENERGY EFFICIENCY

DEMAND RESPONSE

ENERGY CONSERVATION

RENEWABLE ENERGY

Passive Energy Conservation Energy Management System Retro-Commissioning

ENERGY DESIGN GUIDELINES

GREENHOUSE GAS EMISSIONS

STAKEHOLDER ENGAGEMENT

Benchmarks Establishment LCA development Building Massing & Envelope Shading & Daylighting Energy Star Equipment LEED Requirements

Lighting & Control Precooling Technology Thermal Enhancement

Solar PV Delivers:

ENERGY EFFICIENCY

DEMAND RESPONSE

ENERGY CONSERVATION

RENEWABLE ENERGY

Passive Energy Conservation Energy Management System Retro-Commissioning

ENERGY DESIGN GUIDELINES

GREENHOUSE GAS EMISSIONS

STAKEHOLDER ENGAGEMENT

Benchmarks Establishment LCA development Building Massing & Envelope Shading & Daylighting Energy Star Equipment LEED Requirements

Lighting & Control Precooling Technology Thermal Enhancement

Strategy Analysis

13 Schools164 Buildings

25,764,161kWh Annual Energy Use

3,595,283$ Annual Energy Cost

2025 Achieve Zero Net Energy

W. S Hart UHSD – Profile & Challenges:

• Located in northern LA County

• 23,000 students

• High school district (Grades 7-12)

• 6 junior high schools, 6 high schools

• 1 continuation high school

• Aging facilities

• Funding limitations

Wm. S Hart UHSD – Lessons:

• Solar Arrays installed in 2012

• Power Purchase Agreement

• Backwards approach

• Planning is important

• ZNE allows the District to free up

funding for other uses

GGOVERNOR'S EXECUTIVE ORDER IN 2012 (B-18-12):

ZNE Design Approach

Canyon High School

Canyon High School

Canyon High School

Canyon High School

Campus Energy Usage Profile

Canyon High School

Canyon High School

ZNE

PV Generation

HVAC System

Building Envelop

Control System

SSTRATEGY BALANCE

• Life cycle cost analysis • Technology advancing • Ease of implementation • Available funding • … …

Canyon High School

LED RETROFIT

BMS LIFE CYCLE ANALYSIS

IIMPROVE INSULATION

EFFICIENT WINDOWS

ADEQUATE DAYLIGHTING

EXTERIOR SHADING

. . . . .

THERMAL MASS

PLUG LOAD MANAGEMENT

OCCUPANT ENGAGEMENT

DISTRIBUTED GENERATION

11 ENERGY EFFICIENCY/ENERGY CONSERVATION MEASURES

GeneralDevelop upgrade measures through integrated, interactive design process

Develop upgrade measures through integrated, interactive design process

Roof insulation Well-insulated roof

Continuous insulation Continuous insulation

Green roof Green roof

Evaluate and implement building envelope measures Evaluate and implement building envelope measures

Upgrade to R-38 Insulation Upgrade to R-38 InsulationWall insulation Well-insulated walls

Uninsulated CMU Install Continuous insulation Install Continuous insulation

Evaluate and implement building envelope measures Evaluate and implement building envelope measures

Upgrade to R-38 Insulation Upgrade to R-38 InsulationEnvelope airtightness Airtight envelope

Conduct blower door testing and infrared photographic analysis

Conduct blower door testing and infrared photographic analysis

Implement air sealing improvements Implement air sealing improvementsWindows Efficient windows

Double glazing Double glazing

Low-E glazing Low-E glazingAirtight Airtight

No thermal bridges No thermal bridges

Electrochromic glazing Electrochromic glazing

Keep doors and windows closed when warranted by outside conditions

Keep doors and windows closed when warranted by outside conditions

Appropriate solar orientationInadequate fenestration Add north/south fenestration Add north/south fenestration

Appropriate window to wall ratio Appropriate window to wall ratioAdd transpired solar collector at facade Add transpired solar collector at facade

Daylighting Adequate daylighting

Inadequate fenestration Add windows Add windows

Install skylights with appropriate glare control and operable shades

Install skylights with appropriate glare control and operable shades

Add clerestories with operable shades Add clerestories with operable shades

LOW COST MEASURES

R-13 polyiso insulation within TPO roofingassembly

Well-distributed skylights were designedbut only three installed

Assume double-pane standard glazing

Asssume metal frame with

ADVANCED MEASURES

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11 ENERGY EFFICIENCY/ENERGY CONSERVATION MEASURES

Natural ventilation

few operable vents or windows Operable windows Operable windows

Operable skylights Operable skylights

Operable vents Operable vents

Wind chimney Wind chimney

Automatic night cooling Automatic night cooling

Ceiling fans Ceiling fans

Provide operable vents at new clerestories Provide operable vents at new clerestories

Provide night cooling Provide night cooling

Provide ceiling fans at major spaces Provide ceiling fans at major spaces

Exterior shading

Louvered sunshades Louvered sunshades

operable exterior shades operable exterior shades

Thermal mass

Phase-change material Phase-change material

Crawlspace thermal labyrinth heat storage Crawlspace thermal labyrinth heat storage

Underground concrete passive storage Underground concrete passive storage

Mechanical ventilation Balanced heat recovery ventilation

Balanced heat recovery ventilation Balanced heat recovery ventilation

Underfloor ventilation delivery system Underfloor ventilation delivery system

HVAC Efficient HVAC

Roof-top package units Radiant ceiling panels for heating and cooling Radiant ceiling panels for heating and cooling

Evaporative cooling for ventilation air and data center Evaporative cooling for ventilation air and data center

VAV for conference rooms VAV for conference rooms

Solar absorption chiller and back-up compressor Solar absorption chiller and back-up compressor

Install programmable thermostats Install programmable thermostats

Control classroom thermostats Control classroom thermostats

Control exhaust fans Control exhaust fans

Install mechanical system upgrades Install mechanical system upgrades

Upgrade to higher efficiency roof-top package units Upgrade to higher efficiency roof-top package units

LOW COST MEASURES ADVANCED MEASURESW

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chool

11 ENERGY EFFICIENCY/ENERGY CONSERVATION MEASURES

Commissioning/Calibration/Preventive maintenance

Ensure key maintenance activities are performed Ensure key maintenance activities are performed

Inspect all outside air systems Inspect all outside air systems

Implement building commissioning Implement building commissioning

Adopt a preventive maintenance program Adopt a preventive maintenance program

Monitoring/Energy management

Building automation system Building automation system

Post-occupancy monitoring, data loggers, and utility bill analysis

Post-occupancy monitoring, data loggers, and utility bill analysis

Benchmark the school Benchmark the school

Adopt a vacation shutdown program Adopt a vacation shutdown program

Obtain and analyze load profiles Obtain and analyze load profiles

Perform energy audits Perform energy audits

Use building performance asessment technology Use building performance asessment technology

Provide energy efficiency training to staff and faculty Provide energy efficiency training to staff and faculty

Plug load management

Switched outlets with occupancy sensor Switched outlets with occupancy sensor

Establish a plug load plan Establish a plug load plan

Occupant engagement

Monitoring dashboard and kiosk Monitoring dashboard and kiosk

Hold an awareness campaign Hold an awareness campaign

User education/occupant training User education/occupant training

Establish and communicate a policy Establish and communicate a policy

Assign responsibility for common areas Assign responsibility for common areas

Establish a recognition program with or without incentives Establish a recognition program with or without incentives

LOW COST MEASURES

PREDICTED EUI AS CALCULATED FROM ENERGY MODEL

ADVANCED MEASURES

West R

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Baseline EUI 40.4

Low Cost EUI 31.3

Advanced EUI 20.8 23% ↓ 49% ↓

Participate demand Response Program Participate demand Response Program

Photovoltaics Photovoltaics

Microturbine Microturbine

Battery storage Battery storage

Photovoltaics Photovoltaics

Solar thermal water heating Solar thermal water heating

Geothermal preheating/precooling Geothermal preheating/precooling

Power generation at the point of consumption.

Microturbine Microturbine

Fuel Cell Feul Cell

LOW COST MEASURES

44 DISTRIBUTED GENERATION

Shifting electricity usage from peak periods to periods of lesser demand.

Existing photovoltaic panels over the parking lot satisfy 62% of existing annual energy demand

Energy collected from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat, instead of f il f l

22 DEMAND RESPONSE

33 RENEWABLE ENERGY

ADVANCED MEASURES West R

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Hig

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chool

Reduce Energy Use Reduce Energy Cost

Low Cost Measures EUI 331.3

23% ↓

Advanced Measures EUI 20.8

49% ↓

* Unit in kBtu/sf yr

Canyon High School

Canyon High School

Energy use

Exist. PV generation

Future PV needs

Annual Energy Consumption

Annual Energy Generation