Opportunities in sustainability in commercial buildings 10152015 (final updated)

ECO Green Group Thursday October 15, 2015
by
Tony Green
Copyright @ Tony Green 2015
Opportunities in Sustainability in
Commercial Buildings

Agenda
 1. Definition of a Commercial Buildings
 2. Energy Use in Commercial Buildings
 3. Current Water Use in Commercial Buildings
 4. Opportunities in Sustainability - Water
 5. Opportunities in Sustainability – Energy
 6. Opportunities in Sustainability – Plant Operation
 7. About Capture H20
 8. Delivering Sustainability
 9. Case Study

Definition of a Commercial Building
http://www.eia.gov/consumption/commercial/reports/2012/preliminary/
A Commercial building
is:
A building greater >
1,000 square feet
With more than 1/2 of
their floor space
dedicated to activity
that is “work or office
related”
Commercial
buildings include,
but are not limited
to: stores, offices,
schools, churches,
gymnasiums,
libraries, museums,
hospitals, clinics,
warehouses, and
jails.
Source: Center for Sustainable Systems, University of
Michigan. 2014. “Commercial Buildings Factsheet.” Pub. No.
CSS05-05

Within the different types of Commercial
Buildings

Square Footage of Commercial Buildings
http://www.energystar.gov/sites/default/files/buildings/tools/DataTrends_Energy_20121002.pdf

Energy Use in Commercial Building
http://www.energystar.gov/buildings/about-us/facts-and-stats
Combined annual energy costs for U.S. commercial buildings and industrial
facilities: $400 billion
Portion of energy in buildings used inefficiently or unnecessarily: 30 percent
Combined percentage of U.S. greenhouse gas emissions generated by
commercial buildings and industrial facilities: 45 percent
If the energy efficiency of commercial and industrial buildings improved by 10
percent, the collected savings would be:
Amount of money: $40 billion
Amount of greenhouse gas emissions prevented: equal to the emissions
from about 49 million vehicles – or about 19 percent of all registered
highway vehicles in the United States.

Energy Use in Commercial Building
Cite as: Center for Sustainable Systems, University of Michigan. 2014. “Commercial Buildings Factsheet.” Pub. No. CSS05-05.

In 2005, the commercial sector
used an estimated 10.2 billion
gallons of water per day.
Three applications account for
88% of commercial building water
use: sanitary (e.g., toilets, sinks),
landscaping, and
heating and cooling.
Water Use in Commercial
Buildings
http://www.sfgate.com/news/article/History-
of-the-Transamerica-Pyramid-3277563.php

Water Use in Commercial Buildings
http://www.energystar.gov/sites/default/files/buildings/tools/DataTrends_Water_20121002.pdf

Current Water Use in Commercial
Building - Office
http://www.pacinst.org/wp-content/uploads/sites/21/2013/02/appendix_f3.pdf

Building - Hotel

Building - Hospitals

Building - Laundry

Building - Groceries

So what is typical usage for a normal
building on a typical day?

Opportunities for Sustainability
– Water
1. Low Flow fixtures
2. Grey Water
3. Rain Water harvesting*
4. Pressure Reduction (Booster)
5. Insulate piping - leaks
6. Leak Proofing
7. Rain Sensors
8. Cooling Tower Recovery*
9. Blowdown*
10. Education
Source: http://www.csemag.com/singlearticle/10waystosavewaterincommercialbuildings/8f74baabfcc8f672483b3b0353ccad16.html

Opportunities for Sustainability
– Energy
 Purchase energy from renewable
sources to reduce fossil fuel use
and emissions
 Passive solar heating and
lighting, low emissivity
windows, structural insulating
panels, and energy efficient
landscaping
 Renewable materials

Opportunities for Sustainability – Operations
Typical Chemical System

Opportunities for Sustainability – Operation

Opportunities for Sustainability – Operation
Versus a Sustainable System

About Capture H2O
BASED IN CARLSBAD, CA
PROVIDER OF SUSTAINABLE WATER
TECHNOLOGIES
FOCUS IS ON PROCESS WATER
WATER AUDITS AND BASELINING
AUTOMATION, CONTROL AND REMOTE
MONITORING
MEASUREMENT AND VERIFICATION SERVICES
SERVICE PROVIDER FOR WATER TECHNOLOGIES

MARKETS SEGMENTS: ANY
BUILDING WITH WATER COOLED
AIR CONDITIONING OR PROCESS
COOLING, SUCH AS...
· COMMERCIAL BUILDINGS
· POWER PLANTS
· HOSPITALS
· HOTELS
· UNIVERSITIES & SCHOOLS
· MANUFACTURING PLANTS
· BIOTECH COMPANIES
· FOOD AND BEVERAGE PLANTS
· HIGH RISE CONDOS
About Capture H2O

THESE BUILDINGS HAVE:
· COOLING TOWERS
· WATER COOLED CHILLERS
· HEAT EXCHANGERS
· USE EVAPORATIVE COOLING
AND USE:
· A LOT OF WATER
· DISCHARGE WASTE WATER TO THE SEWERS
(BLOWDOWN)
· HAZARDOUS SCALE, CORROSION AND BIOCIDE
CHEMICALS
About Capture H2O

About Capture H2O – The Enemy
SCALE BACTERIACORROSION
INCREASES ENERGY,
MAINTENANCE AND
CLEANING COSTS
SHORTENS EQUIPMENT
LIFE AND INCREASES
CAPITAL EXPENSES
6X MORE INSULATING
THAN SCALE
AND HEALTH/SAFETY
RISKS

Background
A very large commercial center had been using liquid water treatment products for many years in
its cooling system. The technical results had always been acceptable. In recent years, however,
the management team of the commercial center had become more and more focused on
environmental issues.
Blended solid concentrate water treatment products for their five cooling tower and
chillers, each with 1,000 tons of refrigeration, with slightly soft municipal water for
make-up.
Solution
Case Study

Case Study
Impact
With the blended solid concentrate product implementation, cycles of concentration were increased
from 5 to 10, which enabled significant water savings and reduced chemical usage. The system
uses “bleed and feed” method to deliver the blended solid concentrate water treatment products.

Thank You!!!!!

Opportunities in sustainability in commercial buildings 10152015 (final updated)

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