b3 building benchmarking program overview...in b3, “benchmarking” is an engineering model that...

B3 Benchmarking

www.CleanEnergyResourceTeams.org

B3 Building Benchmarking

Program Overview

B3 Benchmarking: Background


B3 stands for:

Buildings

Benchmarking and

Beyond


• The State of Minnesota B3 Energy Benchmarking program has been developed by the State of Minnesota Department of Administration and Department of Commerce to help State and local governments improve the energy performance of their buildings by tracking and managing facility energy consumption. mn.b3benchmarking.com

• Made in collaboration with the private design firm The Weidt Group




Current Statistics • Number of Organizations 1,347 • Number of Sites 5,286 • Number of Buildings 7,405 • Number of Meters 11,248 • Total Square Feet 298,116,956

State 2570

Public Schools

1336 County

575 Other 157

City 1597

Higher Ed 1170

Public Buildings in B3


Why Benchmark?

You Can’t Manage What You Don’t Measure


Why Benchmark?

Benchmarking is useful when your city, county, school district, or other entity would like to:

Find the “lowest hanging fruit”

efficiency projects.

Participate in various financing

projects.

Complete an action in the

GreenStep Cities program.

Demonstrate to others the value of

your energy efficiency projects.


Using B3

The following slides briefly go over how to create a B3 account and how to utilize the features.

ACCOUNT CREATION

DATA COLLECTION

DATA ENTRY

ANALYSIS


Account Creation

mn.b3benchmarking.com


Account Creation: Building Editor

Also, Specify the Space Usage Type

When creating an account, it is crucial to enter the Square Footage of the building.


Account Creation: Building Editor

There are many space usage types from which to choose.

Data Collection


ACCOUNT CREATION

DATA COLLECTION

DATA ENTRY

ANALYSIS

Data Collection


Data Collection

•Historic energy data will need to be collected from your utility. •3 Years is preferable

•Local government entities can get this historic data from their utility provider. •Data needs to include:

•Start and end date of meter reading •Consumption in therms, kWh, gallons of fuel, etc •TOTAL billing amount in $ •Electric demand charges if available

Data Collection


ACCOUNT CREATION

DATA COLLECTION

DATA ENTRY

ANALYSIS

Data Collection


Data Entry

Once historic data is in the system, monthly data entry is quick and easy.

Often, the staff person that pays the utility bills is able to spend a few minutes each month entering the new data into B3.


ACCOUNT CREATION

DATA COLLECTION

DATA ENTRY

ANALYSIS

Analysis


Analysis: Summary

kBtu/SF/Year This measure is a very important number to know. It is like an MPG for your car, but for your building. This building is using 79.73 kBtu/SF/Year

Analysis: Benchmark


In B3, “benchmarking” is an engineering model that predicts how much energy a site would use if it were built to today’s energy codes. The B3 ratio is a measurement of a site’s actual consumptions to its predicted benchmark.

Note that LESS than the benchmark is GOOD

89.47 (prediction)

.89 (ratio)

79.73 (actual)

Analysis: Benchmark


See that MORE than the benchmark is BAD

Sites that use more energy than the benchmark are good candidates for an energy audit.

Analysis: Reports


These are all the different reporting options.

Analysis: Reports


New Features


Several new features have recently been made available:

Renewable Energy Meter types for solar P.V., water turbine and wind turbine.

Organizational Google Map View Graphical representation of the energy use of all buildings within an organization

Additional Queries & Exports Continue to improve and expand the reporting and exporting abilities of the application.

Peer Comparison New metric displays how a site is performing compared to peer sites of similar space usage.

New Features


Features that will be rolled out in 2013 •Advanced Benchmarking - further define building spaces, parameters and operations to improve the accuracy of the benchmark ratio and opportunities for improvement

•Improvement module - Identify buildings to improve and create plans to track progress

•Water Consumption Tracking - New mode to track and baseline the water consumption for your organization and buildings.

•Integration with upgraded ENERGY STAR Portfolio Manager - ENERGY STAR is overhauling their website and services so we'll be overhauling how we integrate and share B3 data with Portfolio Manager.

FAQ: Weather Normalization


Weather Normalization mathematically adjusts the energy

consumption figures to factor out any variations outside air temperature

may have had allowing for an "apples to apples" comparison of one

periods of time's energy consumption to another period of time.

Example: you used less energy in 2010 than 2009 so is that savings

related to more efficient operations or due to the fact that the winter of

2010 was warmer than 2009 thus you would expect to use less heating

energy in 2010. Unlike many programs which use heating and cooling

degree days, the B3 Benchmarking system uses an algorithm to

determine the nonlinearity relationship between load and temperature

thus establishing the appropriate curve and balance point.

FAQ: Benchmark


B3 Benchmarking automatically creates an energy Benchmark for each

site. The benchmark is a prediction of the site’s consumption based on an

engineering model of the buildings and space types, constructed as if each

building were built to the current Minnesota Energy Code.

Actual consumption of the site will vary from the benchmark. If the variance

is large, you should check all your building and meter reading data.

The Benchmark is designed to be a good screening tool to identify sites

that need attention. Sites that use more energy than the benchmark are

good candidates for an energy audit.

b3 building benchmarking program overview...in b3, “benchmarking” is an engineering model that...

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