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MINNEAPOLIS BENCHMARKING & PORTFOLIO MANAGER WORKSHOP
Jenny Edwards & Lester Shen
Center for Energy and Environment
May 6, 2014
Pg. 2
Learning Objectives
• Understand what benchmarking is and how to interpret EUI and ENERGY STAR Scores
• Know what is required to comply with the Minneapolis benchmarking ordinance
• Be able to correctly enter your building, energy, and water data through Portfolio Manager
• Know how to obtain your energy and water use data from your service provider
• Know how to get started to reduce your building’s energy use
Pg. 3
Agenda
I. Introduction to Benchmarking and the Minneapolis Ordinance
II. How to Characterize your Property in Portfolio Manager
Break
III. Resources for Saving Energy
IV. How to Obtain and Format Energy & Water Data
V. Q & A
Pg. 4
CEE Help Website
Buildingdisclosure-mpls.mncee.org
Pg. 5
Pg. 6
Pg. 7
What is benchmarking?
Pg. 8
How does your building compare?
< = >?
Pg. 9
Energy and Water Usage
Pg. 10
Site Energy
Pg. 11
Source Energy
Pg. 12
Building Floor Area
Pg. 13
Energy Use Intensity (EUI)
Pg. 14
Energy Use Intensity (EUI)
EUI = energy per square foot per year
(kBtu/ft2-yr)
Pg. 15
Energy Use Intensity (EUI)
Pg. 16
Pg. 17
Energy Star Scores
100
Pg. 18
ENERGY STAR Scores
Median = 50
100
Pg. 19
ENERGY STAR Scores
75th Percentile
100
Pg. 20
ENERGY STAR Certification
≥ 75th Percentile
100
Pg. 21
NYC ENERGY STAR Scores
100
Pg. 22
Pg. 23
Property Type
Pg. 24
Property Type
> 100,000 square feet
2014
Pg. 25
Property Type
50,000 - 100,000 ft2
2015
Pg. 26
Property Use Details
Pg. 27
Gross Floor Area
Pg. 28
Do NOT include residential space
X
Pg. 29
Do NOT include industrial space
X
Pg. 30
Utility Energy Use Data
Pg. 31
All the meters serving the building
Pg. 32
Disclose Your Data to the City
By June 1, 2014
Pg. 33
Information is Submitted as a Data Request thru Portfolio Manager
Access the link from the CEE Help Websitehttp://buildingdisclosure-mpls.mncee.org/
Pg. 34
Disclosure of Energy Results
Pg. 35
Ordinance Timeline
Pg. 36
Summary of Minneapolis Requirements
• Submit by June 1, 2014• All space types except for residential and industrial• Electricity, natural gas, steam & chilled water,
municipal water• Submit summary data to Minneapolis through a
Portfolio Manager data request• City does not require certified ENERGY STAR score• City will publicly disclose summary statistics after 1
year grace period
Pg. 37
Resources
• CEE Help Website• http://buildingdisclosure-mpls.mncee.org/• Portfolio Manager and Utility Data Guides• FAQ (updated regularly!)
• CEE Help line and email• [email protected] or (612) 244-2454.
• EPA Portfolio Manager 101 webinars• http://www.energystar.gov/buildings/training
• Retired Engineers Technical Assistance (ReTAP)• (612) 781-1307 or [email protected]
• ENERGY STAR Help Center• https://portfoliomanager.energystar.gov/pm/help
Pg. 38
Agenda
I. Introduction to Benchmarking and the Minneapolis Ordinance
II. How to Characterize your Property in Portfolio Manager
Break
III. Resources for Saving Energy
IV. How to Obtain and Format Energy & Water Data
V. Q & A
Pg. 39
Log-in to Portfolio Manager
https://portfoliomanager.energystar.gov/pm/login.html
Pg. 40
Connect as a Contact with the City
Pg. 41
Gross Floor Area
Pg. 42
Gross Floor Area
• Total size between exterior surfaces• Includes elevator shafts, but not pipe and ventilation
chases• Not the same as rentable space• Leased spaced included in gross square footage
(GSF)• Atriums calculated by base floor only• Parking garages/lots are included if under building
utility meter but entered separately
Thanks to Leah Hiniker, Hennepin County Energy Manager
Pg. 43
Average Occupancy
• Percentage reflecting the occupancy of the property• Measured as the percentage of the property that is
occupied and operational• Used to account for vacant or unused space in the
property
Pg. 44
Hotel Average Occupancy
Based on the number of rooms filled.
Pg. 45
Property Use - Office
Pg. 46
Weekly Operating Hours
• Total hours property is occupied by a majority of the employees
• Not hours occupied by support staff (security, maintenance, cleaners)
• Not the same as the HVAC schedule• Follow most common schedule for varied schedule
Thanks to Leah Hiniker, Hennepin County Energy Manager
Pg. 47
Weekly Operating Hours
Pg. 48
Number of Computers
Pg. 49
Number of Workers
Pg. 50
Percent That Can be Heated
Pg. 51
Percent That Can be Cooled
Pg. 52
Data Center
75 kW 75 to 100 servers≅
Pg. 53
Computer Room Air Conditioning Unit (CRAC)
Pg. 54
Open Parking Lot Size
Measure area of one parking space and multiply by the number of spaces in the lot
Pg. 55
Property Type Tips and Reminders
• Property type(s) and details will determine your ENERGY STAR score
• You can not use defaults if you want a certified ENERGY STAR score
• Data centers are larger facilities with > 75 servers and separate CRAC; do not include server closets
• Some property use details that matter include operating hours, computers, and percent heated
Pg. 56
Gross Floor Area Reminders
• Gross floor area is measured from exterior walls• Not the same as leasable space• Includes all common and tenant spaces• Only include atrium base floor area• Good idea to include skyway floor area – energy use
will be included• Should be similar to the floor area on file with the city –
though not if portions of the building are exempt.
Pg. 57
Enter Your City Building ID Number
Note: This is different from your Portfolio Manager Building ID!
Pg. 58
City Building ID Number
Pg. 59
City Building ID Number
Your ID is available for download from http://minneapolismn.gov/energybenchmarking
Pg. 60
Agenda
I. Introduction to Benchmarking and the Minneapolis Ordinance
II. How to Characterize your Property in Portfolio Manager
Break
III. Resources for Saving Energy
IV. How to Obtain and Format Energy & Water Data
V. Q & A
Pg. 61
Resources for Saving Energy
• Utilities are the entry point for savings
Pg. 62
Resources for Saving Energy
• Contact account manager for information regarding programs
• Some of the offerings include• Online Energy Assessment• On-Site Assessment• Recommissioning
• Full offering available on Website• www.xcelenergy.com
• Home > Save Money & Energy > Business > Energy Audits & Studies
Pg. 63
Resources for Saving Energy
• Account manager is best source for information• Some offerings
• Energy-saving advise (tips, checklists)• Boiler tune-ups• Steam traps• Natural Gas Energy Analysis• Recommissioning
• www.centerpointenergy.com• Home > Natural Gas > Minnesota > Business > Rebates for
Business
Pg. 64
Technical Terminology for EBCx
• ReCommissioning and/or RetroCommissioning (RCx)
• Repair to, or optimization of, building operations (schedules, procedures), equipment, facilities, or systems to primarily enhance energy efficiency
• RCx generally focuses on major building systems (building envelope, HVAC, and controls), targeting quick payback and often, relatively quick turnaround, energy conservation opportunities.
Pg. 65
Efficient: Prioritize actions
Energy Star five stages of opportunity
Pg. 66
EBCx’s Strategic Difference
Pg. 67
Support for EBCx
• National Study, 2009
• 186 project, various bldg types• Average energy cost savings 10-15%• Paybacks under 2 years
Mills, et al. 2009. Building Commissioning – A Golden Opportunity for Reducing Energy Cost and Greenhouse Gas Emissions. Berkeley, CA: Lawrence Berkeley National Laboratory Report LBNL – 56637.
Pg. 68
Potential Scope of Existing Work
Article Highlights
+ 40% of all GHG come from building sector
+ Survey in 2000 suggested that 0.03% of existing buildings have been RCX
+ Half of all RCX is happening in California
+ RCX has potential to save $30 billion a year and 300 million tons of GHG emissions.
San Francisco Chronicle, Sunday Sept 6 2009
Pg. 69
Case Studies
• Reduced energy costs in office building
• 525,000 sqft• Cost: $185,960• Savings: $143,000• Payback: < 1.3 yr• Building is now
Energy Star Certified
Pg. 70
Case Studies
• Reduced energy costs in hospital
• 600,000 sqft• Cost: $208,000• Savings: $180,800• Payback: 1.2 yr
Pg. 71
Top Ten Energy Savings Opportunities
• 10. Improve boiler efficiency/controls
• 9. Reset supply air static pressure set-points
• 8. Terminal unit tune-ups - dampers & valves
• 7. Return VFD’s to variable speed operation
• 6. Lower condenser water temps/improve chiller sequencing
Pg. 72
Top Ten Energy Savings Opportunities
• 5. Calibrate sensors and instrumentation
• 4. System level test & balance (over air, over pumping)
• 3. Optimize/restore economizer operation
• 2. Eliminate simultaneous heating and cooling
Pg. 73
Top Ten Energy Savings Opportunities
And the #1 Opportunity for saving Energy…..
• 1. Turn off equipment when not needed (scheduled start/stop)
Pg. 74
Agenda
I. Introduction to Benchmarking and the Minneapolis Ordinance
II. How to Characterize your Property in Portfolio Manager
Break
III. Resources for Saving Energy
IV. How to Obtain and Format Energy & Water Data
V. Q & A
Pg. 75
Meters Tab
Pg. 76
Sources of Energy
Pg. 77
Water Usage
Pg. 78
About Your Meters
Pg. 79
Meter data spreadsheet template
optional
Pg. 80
Common Data Errors
• Entry errors• Extra zero• Decimal points• Switched numbers• Half bills
• Units of measurement• Water units: ccf (hundred cubic feet)• Gas units: therms• Electricity units: kWh• Chilled water units: ton-hours• Steam Units: thousand pounds
Thanks to Leah Hiniker, Hennepin County Energy Manager
Pg. 81
Energy & Water Tips and Reminders
• You will need 13* bills covering all days in 2013• *14 billing cycles if no meter start date
• Data are entered monthly to account for weather• Use the spreadsheet upload function in Portfolio
Manager• Use indoor and outdoor water• Steam units: is billed in “MLBS” – which means
thousand pounds; this is the same as “kLbs” in PM• If you have interruptible service and used propane or
diesel, you will need to include those fuels as well. Use delivery dates and volumes that cover 2013.
Pg. 82
Obtaining Your Utility Data
Pg. 83
Obtaining Your Utility Data
• Must include all non-exempt spaces in the building• Tenants are required to provide data, according to City
ordinance.• You can not get tenant data directly without permission• Options for obtaining tenant data:
1. Obtain signed release form and obtain data from utility
2. Ask for data directly from tenant:• Tenant can provide bills• Tenant can use online access • Tenant can provide you with online access
• Water data is publicly available• Step-by-step instructions at:
• http://buildingdisclosure-mpls.mncee.org/compliance/
Pg. 85
Xcel My Account (Green Button)https://myaccount.xcelenergy.com/
Pg. 86
Xcel Electricity Data (Green Button)
Pg. 87
CenterPoint My Account Online
https://myaccount.centerpointenergy.com/
Pg. 88
CenterPoint My Account Online
https://myaccount.centerpointenergy.com/
Pg. 89
CenterPoint Natural Gas Usage Data
Pg. 90
CenterPoint Natural Gas Usage Data
End date
Usage
Pg. 91
CenterPoint Natural Gas Usage Data
End date
Usage
Start date
Pg. 92
Note on CPE Usage Data
• If you buy your gas through a marketer, there is a chance your total use will not be available by logging in to the CPE site. If you show cost but not use, call your CenterPoint account representative.
Pg. 93
NRG District Steam Usage Data
Usage
Reminder: This is equivalent to “kLbs”
Pg. 94
NRG Chilled Water Usage Data
Usage
Pg. 95
Note on district energy costs
• If you decide to include cost, note that natural gas and steam costs are not apples-to-apples
• NRG costs will include equipment and some O&M.• You will be able to compare your building’s energy
costs to itself, but not across a portfolio of different buildings on different fuels.
Pg. 96
NRG Chilled Water Usage Data
Pg. 97
NRG Chilled Water Usage Data
Pg. 98
City of Minneapolis Online Access
http://www.minneapolismn.gov/utilitybilling/
Pg. 99
City of Minneapolis Online Access
http://www.minneapolismn.gov/utilitybilling/
Pg. 100
Water Usage Data from the City
Pg. 101
Water Usage Data from the City
End date Usage
Pg. 102
Water Usage Data from the City
End date Usage
Start date
Pg. 103
What if a meter serves more than my eligible floor area?• For example, a water meter serves building
commercial and residential space• You will have to estimate off the usage from the
exempt space
Pg. 104
ENERGY STAR Score
Pg. 105
Optional: ENERGY STAR Certification
Pg. 106
ENERGY STAR Certificationhttp://www.energystar.gov/buildings/facility-owners-and-managers/existing-buildings/earn-recognition/energy-star-certification/how-app-1
• Your building must be >50% of the property type
• Certifying entity requires AIA or PE license
Pg. 107
Submit your data to Minneapolis
• Only a summary of your Property will be submitted• Items included in data request
• Building Address & Property ID• Property type, floor area, year built• ENERGY STAR Score (if applicable)• Site and source EUI• Total GHG Emissions• Water Use Intensity
Pg. 108
City Building ID Number
Pg. 109
City Building ID Number
Pg. 110
City Building ID Number
Pg. 111
Minneapolis Data Requesthttps://portfoliomanager.energystar.gov/pm/reports/dataRequest/respond/14798
On CEE Help website:
Pg. 112
Select building(s) to be disclosed
Pg. 113
Preview and send response
Pg. 114
Where to go for Help
• CEE Help Website• http://buildingdisclosure-mpls.mncee.org/• Portfolio Manager How-to guide • Utility data request guides & tenant release forms• FAQ (updated regularly)• Email and help line for custom questions• Link to submit your data to Minneapolis
• EPA Portfolio Manager glossary and help email• City Environmental Services Website
• http://minneapolismn.gov/energybenchmarking
Pg. 115
Agenda
I. Introduction to Benchmarking and the Minneapolis Ordinance
II. How to Characterize your Property in Portfolio Manager
Break
III. Resources for Saving Energy
IV. How to Obtain and Format Energy & Water Data
V. Q & A