"Jan. 7, 2020: Working with Sanjeev and his students was nothing short of professional and educating. From the first interaction with the students you could tell that there was real interest in the work that they were doing. The areas that they indicated improvements and the estimated cost savings made it really easy to justify the costs of the upgrades. I would highly recommend this group to any company or cooperation looking to modernize and become more efficient with the energy they consume. March 29, 2019: I have printed and briefly went through the review. This is a great amount of work and am excited to thoroughly read through this and look at how we can save money on electrical consumption as well as water. I will provide some feedback/comments after I go through it completely. Thank you very much again for the diligent work you and the students have put into this I greatly appreciate it. Best Regards, Joshua B. Youngblood Asst. Water Quality Superintendent-Wastewater" "Jan. 7, 2020: Working with Sanjeev and his students was nothing short of professional and educating. From the first interaction with the students you could tell that there was real interest in the work that they were doing. The areas that they indicated improvements and the estimated cost savings made it really easy to justify the costs of the upgrades. I would highly recommend this group to any company or cooperation looking to modernize and become more efficient with the energy they consume. March 29, 2019: I have printed and briefly went through the review. This is a great amount of work and am excited to thoroughly read through this and look at how we can save money on electrical consumption as well as water. I will provide some feedback/comments after I go through it completely. Thank you very much again for the diligent work you and the students have put into this I greatly appreciate it. Best Regards, Joshua B. Youngblood Asst. Water Quality Superintendent-Wastewater" "Jan. 7, 2020: Working with Sanjeev and his students was nothing short of professional and educating. From the first interaction with the students you could tell that there was real interest in the work that they were doing. The areas that they indicated improvements and the estimated cost savings made it really easy to justify the costs of the upgrades. I would highly recommend this group to any company or cooperation looking to modernize and become more efficient with the energy they consume. March 29, 2019: I have printed and briefly went through the review. This is a great amount of work and am excited to thoroughly read through this and look at how we can save money on electrical consumption as well as water. I will provide some feedback/comments after I go through it completely. Thank you very much again for the diligent work you and the students have put into this I greatly appreciate it. Best Regards, Joshua B. Youngblood Asst. Water Quality Superintendent-Wastewater" "Jan. 7, 2020: Working with Sanjeev and his students was nothing short of professional and educating. From the first interaction with the students you could tell that there was real interest in the work that they were doing. The areas that they indicated improvements and the estimated cost savings made it really easy to justify the costs of the upgrades. I would highly recommend this group to any company or cooperation looking to modernize and become more efficient with the energy they consume. March 29, 2019: I have printed and briefly went through the review. This is a great amount of work and am excited to thoroughly read through this and look at how we can save money on electrical consumption as well as water. I will provide some feedback/comments after I go through it completely. Thank you very much again for the diligent work you and the students have put into this I greatly appreciate it. Best Regards, Joshua B. Youngblood Asst. Water Quality Superintendent-Wastewater"

"Bhuvnesh wrote: Thank you, Dr. Khanna, it was a pleasure for our Mascoutah team to learn the techniques of energy assessment from you. Amy wrote: Thank you and your team for the onsite assessment and providing the detailed report; I have filed the report and intend to visit each recommendation and request action to implementation opportunity. I thoroughly enjoyed having your students and the length of detail to supply Legrand Cablofil with sustainability projects that identifies the cost savings and energy reduction efforts maximum impact. Legrand Cablofil is committed to setting objectives intended to improve our environmental performance by taking action to protect the environment, meeting compliance obligation and continually improving. Thank you for your support in those efforts and reaching our sustainability and energy reduction goals." "Bhuvnesh wrote: Thank you, Dr. Khanna, it was a pleasure for our Mascoutah team to learn the techniques of energy assessment from you. Amy wrote: Thank you and your team for the onsite assessment and providing the detailed report; I have filed the report and intend to visit each recommendation and request action to implementation opportunity. I thoroughly enjoyed having your students and the length of detail to supply Legrand Cablofil with sustainability projects that identifies the cost savings and energy reduction efforts maximum impact. Legrand Cablofil is committed to setting objectives intended to improve our environmental performance by taking action to protect the environment, meeting compliance obligation and continually improving. Thank you for your support in those efforts and reaching our sustainability and energy reduction goals." "Bhuvnesh wrote: Thank you, Dr. Khanna, it was a pleasure for our Mascoutah team to learn the techniques of energy assessment from you. Amy wrote: Thank you and your team for the onsite assessment and providing the detailed report; I have filed the report and intend to visit each recommendation and request action to implementation opportunity. I thoroughly enjoyed having your students and the length of detail to supply Legrand Cablofil with sustainability projects that identifies the cost savings and energy reduction efforts maximum impact. Legrand Cablofil is committed to setting objectives intended to improve our environmental performance by taking action to protect the environment, meeting compliance obligation and continually improving. Thank you for your support in those efforts and reaching our sustainability and energy reduction goals." "Bhuvnesh wrote: Thank you, Dr. Khanna, it was a pleasure for our Mascoutah team to learn the techniques of energy assessment from you. Amy wrote: Thank you and your team for the onsite assessment and providing the detailed report; I have filed the report and intend to visit each recommendation and request action to implementation opportunity. I thoroughly enjoyed having your students and the length of detail to supply Legrand Cablofil with sustainability projects that identifies the cost savings and energy reduction efforts maximum impact. Legrand Cablofil is committed to setting objectives intended to improve our environmental performance by taking action to protect the environment, meeting compliance obligation and continually improving. Thank you for your support in those efforts and reaching our sustainability and energy reduction goals."

"Such a wonderful opportunity - you can use me as a reference anytime!" "Dr. Wu, Thank you for the follow up to the audit you and the students performed last year. I found the observations very insightful and relevant to our manufacturing operation. It was extremely helpful to learn how to quantify the savings. It is easy to overlook and avoid making the investments until you place a value on what it costs you in energy costs. Though we are unable to implement some of the items we've taken the first steps with trading out the light fixtures throughout the facility as suggested by your audit team. Best regards, Drew Dubray General Manger Koken Manufacturing" "Such a wonderful opportunity - you can use me as a reference anytime!" "Dr. Wu, Thank you for the follow up to the audit you and the students performed last year. I found the observations very insightful and relevant to our manufacturing operation. It was extremely helpful to learn how to quantify the savings. It is easy to overlook and avoid making the investments until you place a value on what it costs you in energy costs. Though we are unable to implement some of the items we've taken the first steps with trading out the light fixtures throughout the facility as suggested by your audit team. Best regards, Drew Dubray General Manger Koken Manufacturing" "Such a wonderful opportunity - you can use me as a reference anytime!" "Dr. Wu, Thank you for the follow up to the audit you and the students performed last year. I found the observations very insightful and relevant to our manufacturing operation. It was extremely helpful to learn how to quantify the savings. It is easy to overlook and avoid making the investments until you place a value on what it costs you in energy costs. Though we are unable to implement some of the items we've taken the first steps with trading out the light fixtures throughout the facility as suggested by your audit team. Best regards, Drew Dubray General Manger Koken Manufacturing" "Such a wonderful opportunity - you can use me as a reference anytime!" "Dr. Wu, Thank you for the follow up to the audit you and the students performed last year. I found the observations very insightful and relevant to our manufacturing operation. It was extremely helpful to learn how to quantify the savings. It is easy to overlook and avoid making the investments until you place a value on what it costs you in energy costs. Though we are unable to implement some of the items we've taken the first steps with trading out the light fixtures throughout the facility as suggested by your audit team. Best regards, Drew Dubray General Manger Koken Manufacturing"

"Hi Dr. Wu, Thank you for putting this together. We appreciate the time you and your team spent on this. We will review and get back to you with any questions and I will see if I can involve any other sites. Thanks again," Also feedback from one of the MoIAC student team member (Jeff Hoiday): "... I first want to thank you for introducing me into the world of energy efficiency and sustainable energy. The opportunity that you (IAC) provided was one that would change my outlook on the ever bearing question of what I want to do when I graduate. You opened the door for me to finally answer that question." "Hi Dr. Wu, Thank you for putting this together. We appreciate the time you and your team spent on this. We will review and get back to you with any questions and I will see if I can involve any other sites. Thanks again," Also feedback from one of the MoIAC student team member (Jeff Hoiday): "... I first want to thank you for introducing me into the world of energy efficiency and sustainable energy. The opportunity that you (IAC) provided was one that would change my outlook on the ever bearing question of what I want to do when I graduate. You opened the door for me to finally answer that question." "Hi Dr. Wu, Thank you for putting this together. We appreciate the time you and your team spent on this. We will review and get back to you with any questions and I will see if I can involve any other sites. Thanks again," Also feedback from one of the MoIAC student team member (Jeff Hoiday): "... I first want to thank you for introducing me into the world of energy efficiency and sustainable energy. The opportunity that you (IAC) provided was one that would change my outlook on the ever bearing question of what I want to do when I graduate. You opened the door for me to finally answer that question." "Hi Dr. Wu, Thank you for putting this together. We appreciate the time you and your team spent on this. We will review and get back to you with any questions and I will see if I can involve any other sites. Thanks again," Also feedback from one of the MoIAC student team member (Jeff Hoiday): "... I first want to thank you for introducing me into the world of energy efficiency and sustainable energy. The opportunity that you (IAC) provided was one that would change my outlook on the ever bearing question of what I want to do when I graduate. You opened the door for me to finally answer that question."

""Hello Bin - My Maintenance team upgraded the building BMS controls in 2014. In Oct 2014, we tested & Nov refined the control. The results. In a same time comparison, the site used 814,229 kWh less Jan - May 2013 & 423,564 kWh less than Jan - May 2014. We implemented 1-3. 4 & 5 were not done." Update from the company's Sustainability Manager, On Dec 16 2015 Mr. Jeffery Whitford wrote: "I just wanted to reach out to let you know that we're in the very early stages of a major energy efficiency investment. Our business went through a major transition over the past few months as we were acquired by XXXX, Germany. There is an even greater focus on environmental sustainability and investment in energy efficiency. I expect that with this change we will be working on implementing the things you outlined in the coming year or two since we're looking a 3 year program that is probably in the range of a $5 - $15 M investment (coop - wide). Thank you again ....jw" " ""Hello Bin - My Maintenance team upgraded the building BMS controls in 2014. In Oct 2014, we tested & Nov refined the control. The results. In a same time comparison, the site used 814,229 kWh less Jan - May 2013 & 423,564 kWh less than Jan - May 2014. We implemented 1-3. 4 & 5 were not done." Update from the company's Sustainability Manager, On Dec 16 2015 Mr. Jeffery Whitford wrote: "I just wanted to reach out to let you know that we're in the very early stages of a major energy efficiency investment. Our business went through a major transition over the past few months as we were acquired by XXXX, Germany. There is an even greater focus on environmental sustainability and investment in energy efficiency. I expect that with this change we will be working on implementing the things you outlined in the coming year or two since we're looking a 3 year program that is probably in the range of a $5 - $15 M investment (coop - wide). Thank you again ....jw" " ""Hello Bin - My Maintenance team upgraded the building BMS controls in 2014. In Oct 2014, we tested & Nov refined the control. The results. In a same time comparison, the site used 814,229 kWh less Jan - May 2013 & 423,564 kWh less than Jan - May 2014. We implemented 1-3. 4 & 5 were not done." Update from the company's Sustainability Manager, On Dec 16 2015 Mr. Jeffery Whitford wrote: "I just wanted to reach out to let you know that we're in the very early stages of a major energy efficiency investment. Our business went through a major transition over the past few months as we were acquired by XXXX, Germany. There is an even greater focus on environmental sustainability and investment in energy efficiency. I expect that with this change we will be working on implementing the things you outlined in the coming year or two since we're looking a 3 year program that is probably in the range of a $5 - $15 M investment (coop - wide). Thank you again ....jw" " ""Hello Bin - My Maintenance team upgraded the building BMS controls in 2014. In Oct 2014, we tested & Nov refined the control. The results. In a same time comparison, the site used 814,229 kWh less Jan - May 2013 & 423,564 kWh less than Jan - May 2014. We implemented 1-3. 4 & 5 were not done." Update from the company's Sustainability Manager, On Dec 16 2015 Mr. Jeffery Whitford wrote: "I just wanted to reach out to let you know that we're in the very early stages of a major energy efficiency investment. Our business went through a major transition over the past few months as we were acquired by XXXX, Germany. There is an even greater focus on environmental sustainability and investment in energy efficiency. I expect that with this change we will be working on implementing the things you outlined in the coming year or two since we're looking a 3 year program that is probably in the range of a $5 - $15 M investment (coop - wide). Thank you again ....jw" "

"This audit has resulted approximately $400,000 annual saving through implementation of recommendations - very close to the estimation in as our report (company recorded 10% of savings out of $4.5M utility costs/year): "Good Afternoon Dr. Wu, ... I will update you on your findings during your team’s energy audit at Piramal. It should also be noted that our plant has formed an “Energy Pillar Team” in an effort to achieve a level 3 status in our “Operational Excellence” program.... ... AR2. Our XXX furnace was repaired not long after your audit. This furnace is operating more efficiently. Our XXX Furnace is being scheduled for a repair in xxxx. AR3. I have initiated a quoted project using Ameren’s rebate program. I currently have a proposal to install VFDs on all of our fans before our Corporate office awaiting approval. AR4. At present our XXX is down for a rebuild and upgrade. I also have an approved project through Ameren’s rebate program to improve control of our compressors. This project includes leak detection and repair of our compressed air system. This project to be completed before November of this year. AR5. This is a viable suggestion which has yet to be implemented. AR6. This suggestion is part of the compressed air project mentioned above and will be implemented as funds become available. AR7. As belts are changed in the course of PM’s, we are re-installing cogged V-belts. Estimate 50% of belts are now cogged. AR8. Resetting of thermostats for the most part has been accomplished. Problem with keeping unauthorized personnel from changing settings will have to be addressed. AR9. Photo-eyes have been installed and are working well. · Preliminary data shows electrical saving of about 10% over previous year with just the implemented items. · Our Energy Pillar Team is working to establish data collection with more detail. · I will stay in touch as more data becomes available. Sincerely,"" "This audit has resulted approximately $400,000 annual saving through implementation of recommendations - very close to the estimation in as our report (company recorded 10% of savings out of $4.5M utility costs/year): "Good Afternoon Dr. Wu, ... I will update you on your findings during your team’s energy audit at Piramal. It should also be noted that our plant has formed an “Energy Pillar Team” in an effort to achieve a level 3 status in our “Operational Excellence” program.... ... AR2. Our XXX furnace was repaired not long after your audit. This furnace is operating more efficiently. Our XXX Furnace is being scheduled for a repair in xxxx. AR3. I have initiated a quoted project using Ameren’s rebate program. I currently have a proposal to install VFDs on all of our fans before our Corporate office awaiting approval. AR4. At present our XXX is down for a rebuild and upgrade. I also have an approved project through Ameren’s rebate program to improve control of our compressors. This project includes leak detection and repair of our compressed air system. This project to be completed before November of this year. AR5. This is a viable suggestion which has yet to be implemented. AR6. This suggestion is part of the compressed air project mentioned above and will be implemented as funds become available. AR7. As belts are changed in the course of PM’s, we are re-installing cogged V-belts. Estimate 50% of belts are now cogged. AR8. Resetting of thermostats for the most part has been accomplished. Problem with keeping unauthorized personnel from changing settings will have to be addressed. AR9. Photo-eyes have been installed and are working well. · Preliminary data shows electrical saving of about 10% over previous year with just the implemented items. · Our Energy Pillar Team is working to establish data collection with more detail. · I will stay in touch as more data becomes available. Sincerely,"" "This audit has resulted approximately $400,000 annual saving through implementation of recommendations - very close to the estimation in as our report (company recorded 10% of savings out of $4.5M utility costs/year): "Good Afternoon Dr. Wu, ... I will update you on your findings during your team’s energy audit at Piramal. It should also be noted that our plant has formed an “Energy Pillar Team” in an effort to achieve a level 3 status in our “Operational Excellence” program.... ... AR2. Our XXX furnace was repaired not long after your audit. This furnace is operating more efficiently. Our XXX Furnace is being scheduled for a repair in xxxx. AR3. I have initiated a quoted project using Ameren’s rebate program. I currently have a proposal to install VFDs on all of our fans before our Corporate office awaiting approval. AR4. At present our XXX is down for a rebuild and upgrade. I also have an approved project through Ameren’s rebate program to improve control of our compressors. This project includes leak detection and repair of our compressed air system. This project to be completed before November of this year. AR5. This is a viable suggestion which has yet to be implemented. AR6. This suggestion is part of the compressed air project mentioned above and will be implemented as funds become available. AR7. As belts are changed in the course of PM’s, we are re-installing cogged V-belts. Estimate 50% of belts are now cogged. AR8. Resetting of thermostats for the most part has been accomplished. Problem with keeping unauthorized personnel from changing settings will have to be addressed. AR9. Photo-eyes have been installed and are working well. · Preliminary data shows electrical saving of about 10% over previous year with just the implemented items. · Our Energy Pillar Team is working to establish data collection with more detail. · I will stay in touch as more data becomes available. Sincerely,"" "This audit has resulted approximately $400,000 annual saving through implementation of recommendations - very close to the estimation in as our report (company recorded 10% of savings out of $4.5M utility costs/year): "Good Afternoon Dr. Wu, ... I will update you on your findings during your team’s energy audit at Piramal. It should also be noted that our plant has formed an “Energy Pillar Team” in an effort to achieve a level 3 status in our “Operational Excellence” program.... ... AR2. Our XXX furnace was repaired not long after your audit. This furnace is operating more efficiently. Our XXX Furnace is being scheduled for a repair in xxxx. AR3. I have initiated a quoted project using Ameren’s rebate program. I currently have a proposal to install VFDs on all of our fans before our Corporate office awaiting approval. AR4. At present our XXX is down for a rebuild and upgrade. I also have an approved project through Ameren’s rebate program to improve control of our compressors. This project includes leak detection and repair of our compressed air system. This project to be completed before November of this year. AR5. This is a viable suggestion which has yet to be implemented. AR6. This suggestion is part of the compressed air project mentioned above and will be implemented as funds become available. AR7. As belts are changed in the course of PM’s, we are re-installing cogged V-belts. Estimate 50% of belts are now cogged. AR8. Resetting of thermostats for the most part has been accomplished. Problem with keeping unauthorized personnel from changing settings will have to be addressed. AR9. Photo-eyes have been installed and are working well. · Preliminary data shows electrical saving of about 10% over previous year with just the implemented items. · Our Energy Pillar Team is working to establish data collection with more detail. · I will stay in touch as more data becomes available. Sincerely,""

"On Jul 30, 2013, at 4:12 PM, Joe Kaufman <JKaufman@ofalloncasting.com> wrote: Dr. Bin Wu O'Fallon Casting would like to thank Dr. Bin Wu and the IAC team for the Assessment report that helped us to review the recommendations for Compressed Air, Broken Seals on Oven Doors, Insulating all of our steam pipes, heat recovery and replacing our old 1978 Boiler with a new efficient Boiler. These completed recommendations will result in actual cost savings, reduction in CO2 emissions, a reduction in electric and natural gas consumption. You and your team are always welcome at O'Fallon Casting. Thanks Joseph J.Kaufman Human Resource & Environmental Mgr. " "On Jul 30, 2013, at 4:12 PM, Joe Kaufman <JKaufman@ofalloncasting.com> wrote: Dr. Bin Wu O'Fallon Casting would like to thank Dr. Bin Wu and the IAC team for the Assessment report that helped us to review the recommendations for Compressed Air, Broken Seals on Oven Doors, Insulating all of our steam pipes, heat recovery and replacing our old 1978 Boiler with a new efficient Boiler. These completed recommendations will result in actual cost savings, reduction in CO2 emissions, a reduction in electric and natural gas consumption. You and your team are always welcome at O'Fallon Casting. Thanks Joseph J.Kaufman Human Resource & Environmental Mgr. " "On Jul 30, 2013, at 4:12 PM, Joe Kaufman <JKaufman@ofalloncasting.com> wrote: Dr. Bin Wu O'Fallon Casting would like to thank Dr. Bin Wu and the IAC team for the Assessment report that helped us to review the recommendations for Compressed Air, Broken Seals on Oven Doors, Insulating all of our steam pipes, heat recovery and replacing our old 1978 Boiler with a new efficient Boiler. These completed recommendations will result in actual cost savings, reduction in CO2 emissions, a reduction in electric and natural gas consumption. You and your team are always welcome at O'Fallon Casting. Thanks Joseph J.Kaufman Human Resource & Environmental Mgr. " "On Jul 30, 2013, at 4:12 PM, Joe Kaufman <JKaufman@ofalloncasting.com> wrote: Dr. Bin Wu O'Fallon Casting would like to thank Dr. Bin Wu and the IAC team for the Assessment report that helped us to review the recommendations for Compressed Air, Broken Seals on Oven Doors, Insulating all of our steam pipes, heat recovery and replacing our old 1978 Boiler with a new efficient Boiler. These completed recommendations will result in actual cost savings, reduction in CO2 emissions, a reduction in electric and natural gas consumption. You and your team are always welcome at O'Fallon Casting. Thanks Joseph J.Kaufman Human Resource & Environmental Mgr. "

"Dr. Wu, It was truly a pleasure to speak with you again. Please find the attached document which demonstrates we have reduced our KWH consumption by 13.9% (while producing more product) since your visit. Thanks again for your assistance and don’t hesitate to call if you need any additional data. Jason C. Hamblen Ring Container Technologies Saint Joseph, MO" "Dr. Wu, It was truly a pleasure to speak with you again. Please find the attached document which demonstrates we have reduced our KWH consumption by 13.9% (while producing more product) since your visit. Thanks again for your assistance and don’t hesitate to call if you need any additional data. Jason C. Hamblen Ring Container Technologies Saint Joseph, MO" "Dr. Wu, It was truly a pleasure to speak with you again. Please find the attached document which demonstrates we have reduced our KWH consumption by 13.9% (while producing more product) since your visit. Thanks again for your assistance and don’t hesitate to call if you need any additional data. Jason C. Hamblen Ring Container Technologies Saint Joseph, MO" "Dr. Wu, It was truly a pleasure to speak with you again. Please find the attached document which demonstrates we have reduced our KWH consumption by 13.9% (while producing more product) since your visit. Thanks again for your assistance and don’t hesitate to call if you need any additional data. Jason C. Hamblen Ring Container Technologies Saint Joseph, MO"