Newsletter 2017 | Quarter 1

The Oklahoma Association of Energy Engineers

CHECK OUT OUR NEW WEBSITE!

Welcome from the President: Looking to the Future. Greetings to AEEOK Members and Honored Colleagues of AEEOK.

I am pleased to present the updated newsletters for the AEEOK Chap-ter. AEEOK board will publish the newsletter quarterly with the content to highlight new members, information on special events and meetings, energy efficiency case studies, and the relevant news for the premier en-ergy efficiency professionals in Oklahoma. As I look to the future in 2017 I am excited to see the growth of our industry and eager to work with

each of you to make our profession great. My theme for 2017 comes from Archimedes, “Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.” Some-times the work of energy efficiency is not easy … the challenges we face are not technical we have amazing data analytical tools at our fingertips like never before in the industry; but how do we leverage these tools to get results for our customers and stakeholders in the communities we serve. Let us all believe that if we have a lever long enough and a fulcrum we can move the world towards more energy efficiency and sustainability.

Thank you,

Kerry Rowland, CEM

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Kerry Rowland

Tom Korpal

Lyle Stogner

Jitendra Gautam

Clifford Pelchat

Burl Ray Chambers

President

Newsletter

Secretary

Vice President

Past President

Treasurer

Our Board Members

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The Energy Landscape is ChangingJoin us for

“Back to the Future II”

To learn more and register today, visit:http://aeeok.org/meetinginfo.php

Association of Energy Engineers & Oklahoma Renewable Energy Council

The joint AEEOK & OREC conference will present trends and innovations in renewables and energy efficiency. Keynote speaker will be Oklahoma Secretary of Energy and Environment, Michael Teague.

Breakout sessions and topics for discussion:

• Status update on the Oklahoma wind industry• Analysis of growing solar market in Oklahoma• GHEX … the Utility of the Future• The value of energy efficiency for Residential &

Commercial Buildings

Wednesday, January 11th, 2017OSU-Tulsa | 8am - 3:30pm700 N Greenwood Ave, Tulsa, OK 74106

REGISTER HERE

$25.00 AEEOK Member Ticket$25.00 OREC Member TicketMore ticket options available

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Professionals are recognized as Legends in Energy when

they meet one or more of the following: AEE Energy Managers Hall

of Fame Member; AEE Certified Professional, AEE Past or Present Officer; AEE

Chapter Past or Present Officer; Life AEE Member; AEE Membership for 10 Years

or More; AEE International Award

Fellow: AEE Members who have made a significant contribution to the energy

management and alternative energy industry through books authored, patents

granted, awards received by other organizations, or individual accomplishments

in the field of energy

AEEOK presents the Oklahoma recipients for the prestigious Legends of Energy and Fellow award.

Gaspar Bonet OK P X

P X

P P

Jitendra Gautam OK

Garen Ewbank OK

First Name Last Name State Legend Fellow

Winner.

management.

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LinkedIn is the #1 professional networking social media platform for professionals. Here are the top reasons you should take the plunge and make connections:

ANNOUNCEMENT!

1. Networking

2. Profile as an expanded resume

3. Publish your knowledge

4. Apply for jobs with your profile

5. Showcase a product or service

6. Showcase your professionalism

Follow AEEOK on

AEEOK is increasing our efforts on LinkedIn, and here’s why...

“How a $150 sensor saved $15,000 and other fun facts: Why you want to commission your building?” by Michael Chimack

For more information on how you can network through LinkedIn read this

CHECK IT OUT: PSO’s Mechanical Seminar

article...

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Where Have All the Lamps Gone?Okay you just finished the most amazing LED lighting retrofit with the help of a PSO rebate, but now what to do with all those old T8 and T12 tubes and yucky ballasts? Just like CFL light bulbs, T8/T12 lamps and ballasts are regulated by the EPA as a Universal Waste.

By keeping recycling on the mind this can guarantee a healthier environment for everyone.

Call the MET (Tulsa Metropolitan Environmental Trust) (918) 584-0584 for this and all your recycling needs.

That is fancy EPA jargon for “Don’t throw your lamps and ballasts out with the regular trash!” Lamps and ballasts require proper disposal by recycling. But don’t let this become a problem just call (918) 584-0584 and the friendly folks at the Tulsa Metropolitan Environmental Trust can help.

SOME FACTS:• Lamps and ballasts contain hazardous materials, such as

mercury, which can contaminate the environment and cause harm to human health.

• Ballasts containing the hazardous materials polychlorinated biphenyls (PCBs) or di (2-ethylhexyl) phthalate (DEHP) also cause health and environmental concerns. Therefore, these liquid-containing “wet ballasts” are a regulated waste and must be recycled.

• Each fluorescent lamp contains around four milligrams of mercury, which means one hundred fluorescent lamps contain four grams of mercury.

• One T12 six foot lamp has enough mercury to contaminate one gallon of drinking water. That’s why it is so important we recycle all fluorescent lamps and ballasts.

• Besides most of the materials in lamps and ballast have value and can be separated and reused.• Lamps containing mercury: Fluorescent tubes, CFLs, Mercury Vapor, Metal Halide, High-Pressure Sodium.

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Gotta Wear Shades...

How a White Roof is Saving Energy for Lawton's Central Mall in Southwest Oklahoma Jitendra Gautam, P.E. & Kerry Rowland, C.E.M

A roof can give more than shelter, it can add a fantastic thermal barrier that can dramatically reduce heating and cooling costs and reduce something called the “urban heat-island effect”, where areas dense with buildings and concrete increases summertime peak energy demand, air conditioning costs, and air pollution.1 The Central Mall in Lawton, OK installed a white roof which might be so bright from reflecting the sun’s energy that patrons have to wear shades, but the building owners are seeing all green from the reduction in energy cost on their PSO electric bill.

During one of those Oklahoma hail storms in late spring 2014, severe damage was caused to the roof at Central Mall. First the bad news, a completely new roof system was required to replace the existing roof system; and now the good news, an opportunity for the building owners to get the roof of their dreams. This dream roof, of course, had to be reliable. But the owners also wanted to take the next step and design the roof for energy efficiency. So, they decided to go for a white surface roof with a thermal insulation value close to R-30, which offers about 40% more insulation than the current standard roof for similar buildings. The result will save a significant amount of energy for the building and improve the comfort of occupants. To make the deal even better, PSO kicked in some energy efficiency dollars and did the energy analysis to verify the savings.

Central Mall-Lawton is a single story enclosed shopping mall built in 1979. The existing roof consisted of steel & metal deck, 4” fiberglass insulation, 1” fiber board, BUR with gravel, ¾ Durolast Duro-Fold insulating board and a 40 MIL Durolast liner. After the hail storm the owners decided to replace the roof with a new Johns Manville (JM) 60MIL White PVC Liner for higher solar reflectivity and better energy efficiency. The JM roofing systems are fire and chemical resistant and contain UV inhibitors for added longevity. The roof features result in an ideal commercial roofing system that enhances energy efficiency and reduces environmental impacts, while being reliable, cost-effective and easy to install.

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A white roof is painted with solar reflective white coating and reflects up to 80-90% of sunlight while traditional dark or black roofs only reflect about 20%. The SRI (Solar Reflective Index) value for the white roofs are very high --0.80 to 0.90 in this case. A roof's SRI is a measure of a surface's ability to reflect solar heat. White roofs reflect most of the sun's rays. This can significantly lower the roof surface temperature by several degrees, decreasing the amount of heat transferred into a building.

Not only is city air significantly hotter in the late afternoon, but the temperature of various surfaces also increases. A sketch of a typical heat island is shown below.2

The urban heat-island effect is a phenomenon where buildings and concrete parking lots trap heat resulting in higher

ambient air temperature than what are found in surrounding areas outside the city. The placement of vegetation on and around buildings, and surfaces like cool roofs and cool roads can reflect sunlight out and reduce the amount of heat absorbed. About 5-10% of summer electricity is used to compensate for the urban heat island effect. Americans spend about $40 billion annually to air condition buildings, which accounts for about one-sixth of all electricity generated in this country. White roofs can reduce summer energy use by 10–40%, saving energy, demand, money and environmental impact.3

Another great reason to install a white roof is the lower maintenance cost compared to a traditional roof. White roofs prevent heat related warping and cracking and extend the life of a roof. Since the white roof lasts longer this reduces waste added to landfills. Each year in the U.S., roofing replacements generate 8-10 million tons of old roofing waste. Historically, about 95% (or 22 million cubic yards) of waste roof materials end up in the landfill.3

White roofs also help builders, building owners and managers meet evolving roofing standards. Many cities and states now have minimum roof reflectance requirements for new construction. Standards required for building now include4:• ASHARE 90.1

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• California's Title 24 Energy Efficiency Building Standard• NYC Department of Buildings Roof Reflectance Standards

Timing was a huge challenge to complete the project; the mall is a busy place and popular destination for Lawton residents. Staging of the roofing materials and installation was a delicate balancing act so as to not inconvenience guests and merchants. And the plan for the new roof had to contain provisions for wind and hail resistant materials and design.

Lawton’s Central Mall Footprint before Installation of New RoofSource: Bing maps for Lawton Mall

Lawton’s Central Mall Footprint after Installation of New RoofSource: Google Maps for Lawton Mall

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The new roof consists of the new JM 70003052 60MIL PVC Liner with white/black non-elvaloy liner over ¾’’ perlite installation board installed over the existing BUR gravel, 1’’ fiber board, and 4" fiberglass insulation for a total R value of 29.65. The new roof covers 421,822 square feet and encompasses two separate buildings with 68 inline stores and over 80 tenants anchored by Dillard’s, J.C. Penney and Sears.

The cooling and heating system consists of 123 individual electric packaged roof top units. The Total cost of the project was $1.785 million.

The energy savings were calculated using American Society of Heating Refrigeration and Air conditioning Engineers (AHRAE) Fundamentals Handbook, ASHRAE 90.1 Energy Standards for Buildings Except Low Rise Residential Building, 2007. These energy savings were simplified and did not include the solar heat gain and exterior shading considerations to determine the PSO rebate.

PSO used ASHRAE standards to estimate the energy savings in terms of kW and kWh for the rebate. The current building HAVC systems were considered for energy savings calculations. The estimated energy usage by proposed white roofing system is compared to a baseline standard roofing system with the same mechanical and lighting conditions. The following chart shows the difference in the energy usage for the minimum code complaint baseline roof and the high efficiency cool roof. The PSO rebate was close to $20,000 based on the ASHRAE model of 288,105 kWh savings.

QUALIFYING INCENTIVE: TOTAL KWH SAVED: SUMMER PEAK KW:

$19,986 228,105 36

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Central Mall's White Roof Energy AnalysisBuilding Manager, Grady Morgan, has analyzed the actual billing data and determined the roof has saved an average $3,246 per month on the PSO electric bill, which is around double the estimated savings. Morgan sums up his

appreciation for the white roof saying, “The new roof instantly makes a noticeable difference not only in cost savings but environmental comfort. I just love this new JM white roof and I give it good grades, it reflects the sun so bright I have to wear shades.”

References[1] EPA Heat Island Effect: http://www.epa.gov/heatisland/index.htm[2] Urban Heat Islands: An Investigation of the Causes, Consequences and Solutions http://www.brynmawr.edu/geology/206/cleare.htm[3] White Roof Project http://www.whiteroofproject.org/faq http://www.whiteroofproject.org/[4] Cool Roof Rating Council and Other Cool Roof Codes and Programs http://coolroofs.org/documents/Cool_Roof_Ratings_Codes_and_Programs021710.pdf

Jitendra Gautam PE is a Project Engineer at ICF International working for PSO high Performance Business. He is a Certified Energy Manager (CEM), Certified Measurement and Verification Professional (CMVP) and LEED AP BD+C.”

Kerry Rowland CEM is an Energy Efficiency Coordinator for PSO Consumer Programs. She manages PSO’s High Performance Business Program for Public Service Company of Oklahoma (PSO). She is a Certified Energy Manager (CEM).”

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The Oklahoma Association of Energy Engineers