1. Save 25% Off Your Utility Bills
EVEN IF YOU HAVE IMPLEMENTED
CONSERVATION MEASURES PREVIOUSLY!
MEC Ohio Energy Conference
February 22nd, 2011
H. Kelly Tisdale C.E.M., LEED AP
Energy Services Division Manager
The Brewer-Garrett Company
1800-686-6869
ktisdale@brewer-garrett.com
2. Agenda
The Need to be Green
Measuring Current Consumption
Benchmarking
Are you considered efficient or not when compared with similar Businesses
Assessing Opportunities
Rebate Programs
Examine Cost and Savings for Energy Conservation Measures
Lighting, Ventilation, Automation, Boilers, Chillers
Sanity Checks – Are savings projections realistic
New Technologies
3. Greener than Green
“The least expensive and most
environmentally friendly unit of
energy is the one that is never
needed!”
100 Watt Light Bulb run year
round
5. Greener than Green
“The least expensive and most
environmentally friendly unit of
energy is the one that is never
needed!”
100 Watt Light Bulb run year
round
This represents only about a 50th
of what a US household consumes
Today‟s technologies can reduce
energy consumption up to 75%
6. Reduction in Pollutants for
Cuyahoga Community College
Annual Reduction – 10,074,032 kWh
Greenhouse Gases 10,600 Tons
VOC 262 Pounds
NOX 30 Tons
Carbon Monoxide 2,100 Pounds
SO2 44 Tons
Particulates 2,500 Pounds
Mercury 270,000 Milligrams
7. Understanding Utility Bills - Electric
Electric Bill
7000
6000
5000
4000
3000
2000
Air Conditioning
1000
0 HVAC Fans
July
January
August
November
June
February
May
March
April
October
December
September
Plug Load
Lighting
kWh
Month
8. Understanding Utility Bills - Gas
Gas Utility - MCF of Gas
1200
1000
800
600
400 Heating
200 Cooking and Misc.
0 Hot Water
July
January
August
November
June
February
May
March
April
October
December
September
Month
9. Measuring Current Consumption
Convert everything to mmBtu…
Gas – Total MCF
MCF = 1 mmBtu
Electricity – Total kWh
1 kWh = 3412 Btu
Divide by 1,000,000 = mmBtu
Example
1000 MCF = 1000 mmBtu
100,000 kWh = 341,200,000 Btu = 341.2 mmBtu
10. Benchmarking
Know the total square footage for you facility –
(example = 10,000 Utility = $225k mmBtu=1,341)
Calculate mmBtu per square foot
Example
Total mmBtu = 1,341
Total square footage = 10,000
Total mmBtu per square foot = .1341
11. Benchmarking
Typical mmBtu per square foot
Schools .03 - .08
Universities .10 - .17
Commercial .12 - .15
Industrials .12 - .25
Use EERE at Rutgers
Energy Star
14. Rebate Programs
Lighting
Prescriptive Method
Will pay $7 per Lamp for t-12 or $1 per t-8
$50 per HID fixture
Occ. Sensors, Exit Signs, Parking Lots, Exterior, Motors, VFDs,
Vending, Cooling, PC Power Management, etc.
Custom Program
$.08 per kWh and $100 per kW
Includes anything that reduces electrical load that is
permanently installed
Process- application, Pre-retrofit survey, Post Application, and Proof
15. Examine Energy Conservation
Opportunities
Lighting
T-12 to T-8
T-8 to T-8
HID to T- 5
Assume cost at about $1.1 per square foot
Assume savings at $.17 per square foot
Example – 10,000 square foot facility
$11,000 cost
$1,700 annual savings
16. LED Benefits / Concerns
Operational Savings
Reduced recycling costs, Extremely long life, Vibration and orientation proof.
Energy and HVAC Savings – Up to 50% in some cases.
Instant-on capabilities
0-100% dimmability
Color changing
Exceptional Lamp Lumen Depreciation
No UV, No IR, No Mercury
Small size allows for many new designs and ideas from the ground up that could not have been
possible before.
Drawbacks?
COST!
Glare issues if not properly applied or designed.
17. Established Types of
LED Products
General Illumination Replacements
Incandescent Halogen Downlights Linear
Landscape Architectural Signage Area
19. Examine Energy Conservation
Opportunities
Ventilation
Nearly 40% of your utility cost can come from
conditioning outdoor air
ASHRAE requirements allow for different control
Potential Savings = .02 mmBtu per square foot
Typically 2 – 4 year payback
20. Examine Energy Conservation
Opportunities
Building Automation
Savings of 2% to 3% off total Utility
Retro-Commissioning also 2% to 3%
Cost is Low
Payback typically < 1year to 3 years
Night set-back
Control Strategies
21. •The first HVAC controllers were pneumatic
•The use of electromechanical relays in ladder logic, to
switch dampers became standardized.
•The relays became electronic switches
•By 1985, pneumatic control could no longer compete with
this new technology.
•By the year 2000, computerized controllers were common
•Today, some of these controllers can even be accessed by
web browsers and PDA’s?
23. Innovative BAS Solutions will..
Preserve existing investments in control and monitoring
devices and integrate them with new standards-based
technologies.
Access and control through a standard web browser.
Combine information from different systems to support
better overall facility management.
Increase flexibility of vendor selection
Lower operational costs, improved facility operations,
reduced energy costs, increased occupant/tenant
satisfaction, and greater control, manageability, and
security of building operations.
24. Examine Energy Conservation
Opportunities
Boilers (15 – 25 year ROI)
Chillers (10 -20 year ROI)
Occupancy Sensors (ventilation)
Rooftops AHU‟s
Processes
Others
Water conservation
Air Dryers
25. Water Conservation
New fixtures
Save nearly 40% of bill
Cooling Towers
Deduct Meters
Water Cooled Condensers
<1year to 3 year paybacks
Irrigation
Deduct Meters
Storm-water Management
Retention Ponds / Pervious Surfaces / Gardens
26. Sample Project
ECM Investment Annual Savings
Lighting $11,000 $1,700
Ventilation $12,500 $3,000
Auto / Cx $ 5,000 $1,500
Mechanicals $15,000 $1,500
Totals $43,500 $7,700
Payback 5.65 years 29% of bill
27. Sanity Check
< 20% = Very Conservative
20% to 25% = Good Target
25% to 35% = Aggressive Target
> 35% = Caution
30. Honeywell Wind Turbine
Cut in Speed < 2 mph
Bicycle Wheel Design
$5000 on market in June 2011
2kW
2,000 kWh per year
About 225 watts per hour
31. Micro Nuclear – Hyperion & Toshiba
$50M each…already 100 orders
25 MW units (vs. 1000MW Base Load Plant) = 5 New Locomotives
Construction begins in 2013
5,000 to 10,00 homes, 40 year life cycle, safe
34. Hairy Solar Panels
19% Efficiency with potential for 40%
Compared to 6 to 9% from Thin Film
Flexible
35. Solar Power and the Fuel Cell
Solar Panels used for Electrolysis
Hydrogen and Oxygen recombine in Fuel Cell
Heats Domestic Water
Power availability very High – Closed Loop