1. Technologies 1 CHP (VA Dallas Case Study)

2. Proprietary Information Of Energy 2013 Dallas VA Medical Center A CHP Case Study Design Build Delivery of a Combined Heat and Power (CHP) Project for a Federal Client

3. Proprietary Information Of Energy 2013 Agenda 1.Introductions 2.Project Overview 3.Vision 4.Construction Activities 5.Challenges/Lessons Learned 6.Q&A

4. Proprietary Information Of Energy 2013 Introductions Mike McLaughlin, PE Vice President of Engineering Jeff Gunlicks Project Manager

5. Proprietary Information Of Energy 2013 Project Overview Dallas VA Medical Center The referral center for VA North Texas Health Care System A major teaching and medical research center. An 84 acre campus less than 10 miles south of Dallas Providing a wide range of medical specialties Includes 544 beds and over 1 million sf of healthcare space

6. Proprietary Information Of Energy 2013 Project Scope Add a 4.6 MW natural gas fired turbine to an existing central energy plant. Replace an existing steam boiler with a dual fuel fired Heat Recovery Steam Generator (HRSG) to replace an existing steam boiler. Integrate electricity into the existing 11MW usage. Existing Central Utility Plant Turbine Yard Electrical Support Building Project Overview

7. Proprietary Information Of Energy 2013 What were the project goals? Reducing operating costs and saving energy Leveraging renewable energy and improve Green footprint Energy Security Why was CHP chosen? Consistent demand for power and heat. Integrated well with existing infrastructure Improved energy independence Where did the owner start? Feasibility study that assessed the economical, technical and funding options. Investigation included Biodiesel, Landfill Gas and Biomass and conventional (natural gas) Project Vision

8. Proprietary Information Of Energy 2013 Power Plant Boiler Plant 45% Efficient Traditional System Power Heat

9. Proprietary Information Of Energy 2013 Generator Heat Recovery 80% Efficient Combined System Power Heat

10. Proprietary Information Of Energy 2013 Gas fired engines ½ – 2.5 MW Micro Turbines ½ - 1 MW Gas Turbines 5 – 50 MW Heating Water 180F-220F Steam 25,000lbs/hr 400,000 lbs/hr Power Heat Combined Heat & Power Dallas VA

11. Proprietary Information Of Energy 2013 Air Inlet Filter Gas Turbine Generator Diverter Valve Bypass Duct Heat Recovery Steam Generator Combined Heat & Power Turbine Heat Recovery Power Heat Supplementary Burner

12. Proprietary Information Of Energy 2013 Supplementary Burner Heat Recovery Steam Generator Combined Heat & Power Heat Recovery Heat Heat Recovery Steam Generator A custom piece of equipment design and fabricated to meet the project requirements Essentially a large water tube boiler using turbine exhaust heat as heat source Actual Dallas VAMC HRSG during hydrostatic pressure test

13. Proprietary Information Of Energy 2013 Aug 2011: Proposal Submitted Dec 2013: Target Turnover Project Schedule 201120122013 DECJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECJANFEBMARAPR CONTRACT SIGNED PURCHASE TURBINE PURHCASE HRSG DRAWINGS COMPLETE DRAWINGS ISSUED FOR CONSTRCTUION CONSTTRUCTION STARTS TUBRINE DELIVERED CONSTRUCTION COMPLETE DESIGNCONSTRUCTION Dec 2013: NG Pipeline Complete

14. Proprietary Information Of Energy 2013 CHP Construction Considerations: Access to site Space for cranes to set up Turbine Equipment Delivery & Rigging:

15. Proprietary Information Of Energy 2013 CHP Construction HRSG Equipment Delivery & Rigging: Considerations: Access to site Space for cranes to set up Size of doors in facility

16. Proprietary Information Of Energy 2013 CHP Construction Considerations: Access to site Space for cranes to set up NG Compressor Equipment Delivery & Rigging:

17. Proprietary Information Of Energy 2013 CHP Construction Site Construction: Considerations: Accessibility Noise & Emissions Proximity to Utilities

18. Proprietary Information Of Energy 2013 Inlet Air Chilling Coils Generator and Turbine (Inside Enclosure) Turbine exhaust CHP Construction Site Construction:

19. Proprietary Information Of Energy 2013 Fuel Train Exhaust from Turbine Water Tube Boiler Economizer Steam Connection Main Stack CHP Construction Site Construction: Duct Burner

20. Proprietary Information Of Energy 2013 Availability of Natural Gas will dictate size/cost of the Natural Gas Compressor. Turbine required 230 psig natural gas. Existing gas supply was 20 psig which would have required a 300 HP compressor. Government opted to contract for a dedicated 100-180 psig natural gas line which dropped NG Compressor to 100 HP saving significant energy Start up currently waiting on completion of NG line. CHP Construction Natural Gas Supply:

21. Proprietary Information Of Energy 2013 1.Construction in an operating Central Energy Plant Shut-downs/high risk operations: Hot tap, Electrical tie-ins 2.Working closely with the end-user throughout the duration of the project facilitated: CHP Construction Other Considerations: Deliver the owner products that meet their needs (example: sight glass change out). Facility operators become familiar with equipment, and manufacturers representatives. RFIs answered quickly with design-build delivery and access to end user. Extensive training at facility turnover for the operators.

22. Proprietary Information Of Energy 2013 3.Manufacturers Representatives are vital to the effort Coordination is critical Expertise is invaluable 4.Planning for Long Lead Items Production of Shop Drawing Payment Schedule and Financing 5.Allow for innovation and design flexibility (design-build): Alternative Solutions within the contractual requirements Improved performance with cost savings CHP Construction Other Considerations:

23. Proprietary Information Of Energy 2013 Summary Benefits: Improved energy efficiency Energy Independence Opportunities to leverage renewable energy sources Environmental Stewardship Options: Available for systems from ½ MW to 50+ MW Heat is available as heating hot water or steam Systems can utilize packaged or custom equipment Unique Considerations: Design to best match your application Construction offers different challenges that traditional construction. Financing and Utility Rebates are commonly available. Select qualified partners to and contract delivery methods

24. Proprietary Information Of Energy 2013 Questions