1. Cogeneration (CHP – Combined Heat & Power) October 2013 © Siemens AG 2013. All rights reserved.

2. Current Market for CHP and Cogeneration State Level Heat Map. Weighted (Top State Analysis, Spark Spread, and RPS for CHP) Siemens IC Infrastructure & Cities Sector October 2013Page 2 State Level Heat Map. Weighted (Top State Analysis, Spark Spread, and RPS for CHP) 0.8 to 1.0 0.71 to 0.79 0.27 to 0.70 Total Weighted CHP Potential by State

3. Cogen Central Plant Electricity Steam CHW Facility 2) Power Management* Supplemental & Backup Power Tariff Optimization Transmission Rights Power Sales / Net metering Capacity & Ancillary Services Supplier & Grid Administration 1) Fuel Management* Gas Purchasing Gas Transportation Scheduling & Balancing Backup Fuel Hedging Invoices & Payment Electric Transmission Grid Natural Gas Transport Microgrid Controller Wind Solar Electricity 3) Cogen / Utility Optimization Load/Demand Mgmt Load & Price Forecasting Cogen Dispatch Analysis Utilities Optimization Energy & Capacity Bidding Reliability Planning 4) Asset Management Cogen / Central Plant Operations & Maintenance Environmental Compliance Planning & Budgeting Accounting & Reporting “CHP Basic” and “CHP +”w/(Potential Services 1, 2, 4) “CHP Microgrid” w/(Services 1 - 4) IC value maximized Introducing full CHP Microgrid Siemens IC Infrastructure & Cities Sector October 2013Page 3

4. Eric Herman National Financial Solutions Manager Siemens Industry, Inc. +1 847-941-6595 (office) +1 847-915-8837 (mobile) eric.herman@siemens.com Contact details 03-21-2011 Copyright Siemens Industry, Inc 2011 Page 4