WebGen’s Intelligent Use of Energy (IUE)™ System Powering Smart Energy Networks Now www.webgensystems.com

1. WebGen’sIntelligent Use of Energy (IUE)™ System Powering Smart Energy Networks Nowwww.webgensystems.com

2. WebGen: Intelligent Use of Energy WebGen’s IUE is the first intelligent, predictive energy conservation system that remotely monitors, forecasts, continuously optimizes, and automatically controls energy use.

3. IUE: An Overview • Low-cost, low-risk, energy conservation service • Helps companies understand & reduce energy costs • Conserves scarce energy resources & creates new revenue streams • Accounts for savings & revenues

4. Hobbs Brook Trizec Properties Bank of America NYSERDA, State of New York State of California, DGS University of Miami, Florida Representative Customers

5. WebGen Installations • Total Installed Space • 25 million square feet • 185 buildings • Locations • California, New York, Florida, New England

6. Our Value: 12% Savings • Always-Active Permanent Load Reduction • Full-Time Peak Load Management (Avoidance & Reduction) • Virtual Meter Aggregation • Curtailment & Sale Back to ISO Cut net aggregated energy spend by 12% with no impact on tenant comfort

7. IUE: Complete Enterprise Energy Management Energy Information Systems IUE Demand Response Systems Building Management Systems

8. IUE: What it Does • Monitors existing energy consuming devices and meters • Aggregates data in buildings, portfolios, power pools • Forecasts usage and executes smart conservation strategieswith real-time analysis of space temperature, air quality, occupancy, weather, and energy price • Intelligently controls devices and lighting, learns consumption patterns and reactions to change • Optimizes and accounts for results

9. IUE: Enhances Building Management Systems

10. Connecting to IUE • WebGen connects existing building management systems (BMS) to the Internet • If no BMS exists, equipment is connected directly via WebGen’s wireless connectivity solution • Building equipment & meters are mapped to WebGen’s IUE servers • Exchange begins, real-time monitoring & control signals are sent via secure Internet connection

11. IUE: Architecture • Standard three-layered architecture: • Browser-based user interface layer • Intelligent business logic layer • Standard data collection layer • Distinct communications layer accommodates new connection protocols.

12. IUE: Lighting Agent • IUE Lighting Agent controls the Flux Regulator • External factors (weather, grid load, energy price) drive agent decisions • Flux Regulator responds to agent commands • Regulated voltage saves money Electric Energy Flux Regulator Internet Connection IUE Office Lighting

13. IUE: Immediate Results • Provides detailed analysis of consumption • Shows and aggregates energy consumed at each device/meter • Shows actions taken & results in real-time • Depicts actual and forecasted consumption based on IUE usage • Translates actions taken into dollars saved • Complete comparison of baseline and actual energy data to bills • Accounts for capacity & energy revenues • Provides real time analysis of commitments, payments and fees

14. Logging In Access system through any standard Web browser with password-protected, encrypted log-in.

15. Baseline Data Preparation

16. Consumption Analysis Detailed Analysis of Consumption kWh consumption over time Cyclical kw demand Selectable From and To Dates

17. Actions Taken

18. Savings Detail Detailed Savings

19. IUE System Savings & Revenues(US $ Per Square foot) Annual Energy Savings on $1.00 energy spend* $0.23 • 10.0% Permanent Load Reduction $0.10 • 5.0% Lighting Load Reduction ** $0.05 • 7.5% Peak Load Avoidance & Diversification $0.08 Annual Capacity & Energy Revenues*** $0.11 • Capacity (.75 W/sq.ft. @ $0.05/W) $0.04 • Energy (.75 W/sq.ft. @ $0.10/kWh) $0.07 Total Annual Savings & Revenues $0.34 *Assumes constant baseline data. Any changes in weather patterns, building occupancy, plug load, lighting load, capital projects will impact savings up or down. *WebGen does not participate in savings resulting from reduced maintenance, lower staff costs, energy-efficient capital projects, etc.. **Where applicable ***Assumes sale of Capacity @ $80,000/MWY and Energy @ $500/MWH (300 hours)

20. IUE System Benefits(US $ Per Square foot) Total Annual Savings & Incremental Revenues $0.340 WebGen Maintenance Fee @ $.09/sq. ft. $0.090 WebGen Share of Energy Savings @ 25% of $.23 $0.075 WebGen Share of Incremental Revenues @ 50% of $.11 $0.055 Total WebGen Share $0.220 Annual Net Savings $0.012 Total Customer Energy Cost Reduction =12.0% Customer Payback on Invested Capital* <8 months • *Assumes no NE ISO energy-efficiency funds available to mitigate installation costs.

21. Summary Report

22. Summary Report Detail

23. Bank of America Energy Curtailment For The California Energy Commission June 27, 2002

24. California Energy Commission Pilot Test • On June 27, 2002, WebGen Systems Intelligent Use of Energy product curtailed 2 Megawatts of power, in 78 Bank of America properties, within the state of California. • The total load of the 78 properties was approximately 9 Megawatts • The time duration was four hours. The test commenced at 2:00 PM, and completed at 6:00 PM, PDST • The following slides display the demand trends for Northern & Southern California, and the aggregate for the pilot test.

28. IUE: System Benefits • Increased Asset Value • Lowers costs of delivering higher capitalized value • Tenant/Employee Satisfaction & Security • Increases perceived value • Provides Consistent Comfort (space temp, air quality) • Heightens Safety (chemical and substance “sniffer” options) • Stakeholder/Management Bottom Line • Reduces energy costs • Eliminates uncertainty of energy price & capacity • Environmentally conscientious & technically superior • energy management solution

29. Financials and Payback: Cost Summary • Net Reduction in Customer Energy Spend • 12% after payment of all fees, shared savings & revenues • One-Time Installation Cost • $.08 per gross square foot (An additional $.05 Lighting) • Annual Maintenance Fee • $.09 per gross square foot • WebGen Share of Energy Savings • 25% of reduced energy spend • WebGen Share of Capacity & Energy Sold • 50% of all new revenues generated

30. Financials & Payback: Transaction Structure Alternatives • Maintenance Fee + Share of Savings and Revenues • As described • Three –Year System Lease/Purchase • Purchase Installation • Lease fully-operational system at fixed rate • Negotiated Performance Conditions • Prepaid System Purchase • Purchase Installation and full operation at NPV price • Negotiated Performance Conditions

31. WebGen History • Founded, May 2000 • Headquartered in Cambridge, MA • Experienced Senior Management: energy suppliers & policy-makers, commercial, institutional & industrial property owners, facilities management, online business services • Leading Institutional Investors

32. Alternative Financials @ $1.30

33. Financials and Payback:Market Cap Impact Assume: Energy Spend/Sq. Ft. $1.30 Savings & Revenue/Sq. Ft. $0.18 7.5 million Sq. Ft. X $0.18 $1.4 million After-Tax Impact @40% tax rate $0.8 million Increase in Earnings ($34 to $34.8) 2.3 % Price-Earnings Ratio 13.5 Market Cap Impact $10.8 million

34. Financials and Payback:Savings & Revenues(US $ Per Square foot) Annual Energy Savings on $1.30 energy spend* $0.29 • 10.0% Permanent Load Reduction $0.13 • 7.5% Peak Load Avoidance & Diversification $0.10 • 5.0% Permanent Lighting Reduction $0.07 Annual Capacity & Energy Revenues** $0.11 • Capacity (.75 W/sq.ft. @ $0.08/W) $0.03 • Energy (.75 W/sq.ft. @ $0.15/kWh) $0.08 Total Annual Savings & Revenues $0.40 *Assumes constant baseline data. Any changes in weather patterns, building occupancy, plug load, lighting load, capital projects will impact savings. *WebGen does not participate in savings resulting from reduced maintenance, lower staff costs, energy-efficient capital projects, etc.. **Where applicable, assumes sale of Capacity @ $80,000/MWY and Energy @ $500/MWH (300 hours)

35. Financials and Payback: Savings & Revenues(US $ Per Square foot) Total Annual Savings & Incremental Revenues $0.400 WebGen Maintenance Fee @ $.09/sq. ft. $0.090 WebGen Share of Energy Savings @ 25% of $.29 $0.073 WebGen Share of Incremental Revenues @ 50% of $.11 $0.055 Total WebGen Standard Share $0.285 Fixed Portion (Customer responsibility) =$.090 Variable Portion (WebGen’s risk) =$.128 Annual Net Savings (50 % Share) $0.200 Total Customer Energy Cost Reduction =15.0% Customer Payback on Invested Capital* <8 months Minimum Energy Savings for Customer Break Even =4.7% • *Assumes no ISO energy-efficiency funds available to mitigate installation costs.