san bernardino community college - green technology
TRANSCRIPT
San Bernardino Community CollegeZero Net Energy at the District Office and Applied Technology Training Center
October 30th, 2018San Bernardino, California
Meet Our Team
ZNE Pilot Program Highlights
• SBCCD ZNE Journey• Review of Prop 39 ZNE Pilot Program • Review of Cadmus Analysis And Recommendations• What is ZNE?• SBCCD’s Approach to ZNE• Renewable Energy - Solar PV System At SBCCD • Led Lighting Retrofit – In Closeout Phase • Tube Skylight Project – In Construction Phase• Implementation of Other ZNE Measures• Spectrometer Spot Measurement Study By Agile Environments• EnOcean Controls Installation And Commissioning• Implementation of ZNE measures Campus Wide• Cost of ZNE
Welcome to SBCCD ZNE Journey
Who is SBCCD?
1 Out of 72 Community College Districts in State of California
2 Out of 114 Campuses of CCD system
3.3 Dollar tax-payer receive for every $1.0 invested in education
4 Million people within its geographical region
22 Cities and Communities within its geographical region
25,000 Opportunities for students annually
1 Million square-feet and 57 facilities district-wide
621,800,000 Dollar contribution annually for regional economic impact
7 Goals of Sustainability Plan
1. Create a campus-wide culture of sustainability
2. Incorporate sustainability into the development of new and renovated facilities
3. Invest in renewable energy and energy efficiency programs
4. Develop a more sustainable transportation system
5. Develop a more sustainable system for the purchase of supplies and materials
6. Enhance curricular educational opportunities for sustainability
7. Establish a commitment to climate action
Facilities Planning & Construction
• Supports the mission of SBCCD through the planning and development of facilities and standards which advance learning by providing a safe, sustainable, and high-quality environment
• LEED and sustainability programs • District standards & specifications • Owner program requirements (OPR) • Facilities master plan • Sustainability integrated energy • Energy conservation plan • Waste water management plan • Environmental health & safety program • Saving by design • Water saving plan • Waste and recyclable
Sustainability is a Culture
• 2010 Participation @ American college and university presidents’ climate commitment
• 2010 Board policy (3580) • 2011 Committee membership• 2012 Sustainability plan adopted. Long term dedication & commitment by BOT,
chancellor, colleges presidents, community stakeholders • 2012 Alternate energy conception plan• 2012 Energy conservation plan• 2012 Behavioral changes – educational component• 2010 - 2017 (10) LEED Certified projects districtwide• 2013 SBVC central plant + CHC solar farm • 2016 CHC recyclable water for campus irrigation • 2017 - 2022 Facilities master plan• 2018 Sustainability & Energy Manager • 2018 - 2019 Integrated energy & sustainability master plan
Challenges, Opportunities, Initiatives
Overcoming challenges:
• Local obligation bonds • Proposition 39 fund • Capital outlay fund • Energy saving • Projects paid by itself – saving from general fund • CPCU incentives • ZNE pilot program• Professional consultants • Events: green schools, CHESC, USGBC, CCFC, CMAA,
AIA, CASH, etc.
Facilities, Sustainability &
Integrated Energy Master Plans
Measure P Bond $190
Million
Measure M Bond $500
Million
Prop 39 Clean Energy
Act$3.1 Million
Energy Conservation
Measures
Prop 39 SCE Zero-Net Energy Pilot
Program
CCC/IOU Partnership
Program
2017 Master Planning
• Sustainable facilities planning … continue • Sets milestones toward achieving zero net energy (ZNE)• Sustainability goals for healthy environments• Community enthusiasm for environmental stewardship • Optimal learning conditionsNext steps: • Ultra-efficient building design standards• Micro-grid and battery storage • Fuel cell electrical generation • Emerging technologies, sub-metering of all systems • Electric/hybrid vehicle charging stations • Online dashboard that shows power generation and power usage • Retro-commissioning on a 3- to 5-year cycle
Prop 39 ZNE Pilot Project
Program GoalsZNE projects are part of California Public Utilities Company’s (CPUC) Proposition 39 ZNE for Schools Pilot Program. Funds for Prop 39, The California Clean Energy Jobs Act, are helping schools across California with the state’s goals to reduce energy use and greenhouse emissions. Leverage Prop 39 funds • Retrofitting “existing” buildings in public schools & community
colleges • Establish “Proof of Concept” of feasibility across California • Document findings & Best Practices • Future Program Development
Prop 39 ZNE Value to Schools• Socialize awareness to stakeholders• District staff members, teachers, students, parents, & community• Design Assistance• Training• Implementation & on-going maintenance of these retrofits
Selection Criteria
• Potential to reach an EUI of 16-22 kBtu/sqft/year after measures are applied
• Project currently has Prop 39 funding or other Non-Prop 39 funds
• Onsite renewable will be installed at the site
• Funded separately from ZNE Pilot
• Must meet Prop 39 ZNE Pilot Schedule
Prop 39 ZNE Rounds 1 and 2 Screening
Target-setting for the whole
building energy footprint
Designing to the target footprint
Building to the design
Monitoring, diagnosis and
correction
Utilities have observed that ZNE buildings can be achieved only by way of an integrated, multidisciplinary design process that includes:
Achieving ZNE
Design Consultation
Construction Inspection and Commissioning
Support
Incremental Cost Buy Down
Monitoring, Diagnosis,
Correction and Validation
Coordination with Prop 39
Utility Support
CEC Loading Order
Energy Hierarchy
Pre-ZNE Implementation: District Offices
Current Utility Data• Electrical consumption 510,000 kWh/year• Peak electrical demand 158 kW• Average electricity cost $0.15/kWh• Average gas cost $1.17/therm
Existing Equipment• Lower efficiency rooftop package cooling units• Electrical resistance water heaters for domestic hot water needs• Lighting systems were found to be 1st generation T8 lamps and lack
effective occupancy and daylight controls
CAMDUS Recommendations
Zero Net Energy – What is it?
1. Increased energy efficiency
2. Reduced operating costs
3. Resiliency
4. Insulation from future energy cost fluctuations
5. Societal valueE
NE
RG
Y C
ON
SU
MP
TIO
N
MIDNIGHT
RENEWABLE ENERGY
BUILDING ENERGY
Zero Net Energy Approach
Zero Net Energy ApproachEEM-9
Automated Shading
Photovoltaics
EEM-2 / 4New RTU’s
EEM-3Evaporative Condenser
EEM-5Convert to
VAV
EEM-6Gas Water
Heater
EEM-7Plug load
management
EEM-7LED Lighting
EEM-10Light Tubes
Zero Net Energy Approach
-
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
3,500,000
4,000,000
4,500,000
Existing EnergyUse
Existing SourceEnergy
Proposed SourceEnergy
On site renewableenergy (source)
Ene
rgy
Use
/ kB
tu-Y
r
Electricity Natural Gas
-
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
3,500,000
4,000,000
4,500,000
Existing EnergyUse
Existing SourceEnergy
Proposed SourceEnergy
On site renewableenergy (source)
Ene
rgy
Use
/ kB
tu-Y
r
Electricity Natural Gas
EEM’s
Zero Net Energy Approach
-
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
3,500,000
4,000,000
4,500,000
Existing EnergyUse
Existing SourceEnergy
Proposed SourceEnergy
On site renewableenergy (source)
Ene
rgy
Use
/ kB
tu-Y
r
Electricity Natural Gas
Zero Net Energy Approach
Solar PV System
1. 174 kW Carport Photovoltaic System
2. Provided by Sunpower
3. Added benefits of keeping cars cool(er) and reduced heat island effect from asphalt
4. Operational since Feb 2018. Performance so far meeting expectations
LED Lighting Retrofit in Closeout Phase
1. Retrofit solution
2. LA Lighting and EnOcean controls have been key
3. Integration with solar tubes
Parabolic Troffer
Spectrometer Spot Measurement
By: Kyle KonisAgile Environnements
400 450 500 550 600 650 700
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Wavelength (nm)
uW/c
m2/
nm
EML = 98pLux = 173M/P = 0.57
This grey curve is the circadian response function
Visual response function
Not much energy is distributed in the wavelengths of the circadian response
Old Fluorescent Lighting at Open Office Workstation
400 450 500 550 600 650 700
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Wavelength (nm)
uW/c
m2/
nm
EML = 269pLux = 274M/P = 0.98
Just SolaTube
Where this measurement was taken, 269 EML is achieved with just the daylight coming from the SolaTube.This measurement supports the design goal that workstations near Solatubescan be primarily lit with daylight during daylight hours, (even with the blinds fully closed).
Old Fluorescent
• Compared with the old fluorescent light spectrum, which has sharp spikes, the daylight spectrum is broader and more even.
• The daylight source delivers nearly three times more Equivalent Melanopic Lux (EML), which leads to greater potential for circadian stimulus and alertness
269 EML
98 EML
400 450 500 550 600 650 700
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Wavelength (nm)uW
/cm
2/nm
EML = 98pLux = 173M/P = 0.57
LED Lighting Retrofit in Closeout Phase
Executive Training Room
LED Lighting Retrofit in Closeout Phase
EnOceanControls
LED Lighting Retrofit in Closeout Phase
EnOceanCommissioning
Tube Skylight Project in Construction Phase
HVAC Replacement in Bid & Award Phase
HVAC
Demolition and replacement of five existing rooftop package constant volume units with new ultra high efficiency variable speed air conditioning units
Variable Air Volume (VAV)
Provide new variable air volume boxes for training rooms.
Controls
The existing building energy management system will be upgraded.
CO2 sensors were added for demand control ventilation.
Replacement of Hot Water Heater in Procurement Phase
Utilizing Southern California Gas Midstream Program
Replacing existing storage gas water heater with tankless high efficiency water heater.
Automated Shading in Planning Phase
Motorized MechoShade
Daylight Wireless Sensor
Allows operation of shades via EnOceancontrols
Campus-wide Upcoming Renewable Energy
• At SBVC campus
• Self-generation and reliability
• Reduced utility bills
• Economical factors
• 2.2 mW solar carport and rooftop
• Approved interconnection application by SCE
• Grandfather TOU for 10 years
• Clean Renewable Energy Bond
• Public-Private Partnership (P3)
• Combined with Battery storage
• Long term power stability
Zero Net Energy Cost
Q&AModerator:Farrah Farzaneh (SBCCD)Sustainability and Energy Manager
Panel:Hussain Agah (SBCCD)Director, Facilities Planning & Construction
Efren Villasenor (SCE)ZNE Project Manager
Martin Howell (Arup)Associate Principal, Energy
Ken Salyer (HMC Architects)Principal / Higher Education Practice Leader