#2015672 10/15 Youngstown Thermal – 30 MW Combined Heat and Power

TEG has been selected by Youngstown Thermal (YT) to provide engineering services for the design, engineering and construction administration for a new gas turbine co-generation system at their downtown Youngstown, OH DHC facility being developed in partnership with EPRI, Energy Industries of Ohio and DOE to host the AUSC Com Test of experimental materials and turbine technology designed to operate at 1,400°F. TEG will be responsible for infrastructure upgrades, design and engineering for modifications needed for the existing DHC plant to serve as the host facility including interface with the Com Test systems and the design and engineering for the new co-generation systems. The new co-generation system will include an HRSG to provide HP steam to a new steam turbine generator and for the Com Test superheater and turbine. High temperature steam from the Com Test turbine will be available to be inducted into the steam turbine generator and supplement the 150 psig DHC system. Equipment procurement and construction is anticipated to begin in the fourth quarter of 2016.

Value of Construction - $50,000,000

#2011649 11/11 General Service Administration (GSA) Co-Generation Facility - Control System Upgrade

TEG has again been selected by GSA to upgrade the combined heat and power (CHP) system originally designed by TEG. TEG served as the lead engineer and designer for the expansion of GSA's DHC system in Washington, D.C. and introduced CHP into their operations to include 11 MW of co-generation and modification of an existing coal-fired boiler to operate as heat recovery steam generator. The most recent project involves developing modifications to the chilled water control system to optimize the chiller plant operation. The optimization program will include monitoring remote usage and pumping pressures, realtime chiller performance, realtime steam production cost and realtime electric power cost. The key to achieving operating cost savings is to switch from electric to steam driven chillers based on realtime production cost and divert electric power produced by the co-generation system to the electric power grid for sale.

Value of Construction - $200,000

#2015863 01/15 Nashville District Energy System Combined Heat and Power

TEG performed the initial development stages for introducing CHP to the Metro Nashville District Energy System (MNDES) to significantly reduce overall operating cost while providing reliable back-up electrical energy to Metro's proposed downtown flood protection system. The new co-generation system will provide emergency electrical power to a river water pumping system proposed to protect the First Avenue and the lower SoBro area from flooding as was experienced in the spring of 2010. During normal operation, the new co-generation system will produce up to 7 MW of electric power and reduce both the electrical demand and energy currently being purchased from Nashville Electric Service (NES), the local TVA power distributor. Heat recovered will produce up to 150,000 lbs/hr (with supplemental firing) of steam for distribution to MNDES customers. TEG analyzed appropriate alternative technical configurations to satisfy the MNDES heat cycle while meeting the energy requirements of the flood-water pumping system as well as the Energy Generating Facility's electric demands. TEG defined the optional equipment selections and prepared the conceptual design. TEG prepared the requisite probable project construction, operation and maintenance cost analysis and developed the LCCA to determine the project will satisfy an acceptable ROI. The economic overview is extremely favorable and the project is expected to be operational in the second quarter of 2017.

Value of Construction - $25,000,000

#2014162 11/13 Co-Gen Facility Modified to Increase Export Steam

TEG was awarded the design and project administration services contract for constructing a steam and condensate pipeline to serve the General Motors (GM) Assembly Plant in Hamtramck, MI. The new services, consisting of a 20" high pressure steam main and 6"condensate return line, extend approximately 7,200 feet from the municipal solid waste-fueled co-generation facility to the Hamtramck facility’s powerhouse. The design included modification to three separate boiler plants. The steam is primarily supplied from extraction steam from the co-gen facility. To achieve the desired steam export, significant modifications were required to the co-gen system’s controls, process extraction, desuperheating and condensate systems. The GM facility receiving the services required modification to facilitate delivery of externally generated steam, manage return of condensate and lay-up the existing coal and gas-fired boilers with hot stand-by provisions. A third boiler plant which provides back-up steam service to the waste-to-energy (WTE) facility required re-rating of two large package boilers to a higher operating pressure required to enable these boilers to provide the high pressure backup steam to the GM facility. In addition to boiler modifications, new steam export piping was installed, along with feedwater system modification to facilitate the higher pressure, control system modification to enable dual-pressure operation of the re-rated boilers and replacement of economizers of both boilers to facilitate the required capacity.

Value of Construction - $12,000,000

#2012650 01/12 University Medical Center (UMC) Heat Recovery Chiller

TEG was selected by EnWave USA (previously Entergy Thermal, LLC) who owns and operates the downtown New Orleans DHC system, to develop construction documents for the installation of a heat recovery chiller within the utility building of the UMC campus to supply 1,329 tons of cooling while supplying over 20 mmbtu of hot water. The scope included development of equipment bid specification, evaluation of equipment bids, developing a design to integrate operation into the heating and cooling services being installed on the UMC campus and development of construction documents. Hot water and chilled water distribution system was constructed under separate contact.

Value of Construction - $1,704,070

#2010863.07077 02/10 Metro Nashville District Energy System-Chiller Plant Modifications to Serve the Hydraulic Requirements of the Music City Convention Center

TEG prepared the design and construction documents for modification of the existing chilled water distribution pumps at the central chiller plant (Energy Generating Facility) for Nashville's District Energy System. The modifications include the replacement of the existing pump impellers and replacement of the existing motor. These modifications are necessary to enable the Facility to provide the necessary flow and head for the new Convention Center while maintaining reliable service to the existing customers.

Value of Construction - $500,000