1. www.esource.com January 17, 2013 The Latest and Greatest Spencer Sator Facility Managers Meeting, City of Palo Alto Utilities Six Emerging Technologies That Deserve a Close Look

2. www.esource.com || © 2013 E Source2 Who is E Source?

3. www.esource.com || © 2013 E Source3 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

4. www.esource.com || © 2013 E Source4 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

5. www.esource.com || © 2013 E Source Electrochromic Windows Before After 5 Source: Sage Electrochromics

6. www.esource.com || © 2013 E Source6 Electrochromic Windows: How They Work Source: HowStuffWorks.com

7. www.esource.com || © 2013 E Source7 You might already own an electrochromic window

8. www.esource.com || © 2013 E Source8 Electrochromic Windows: Energy Impacts Energy savings dependent on specifics of application  2004 LBNL simulation study:  Baseline = spectrally selective low-e, daylighting controls, no shading  Primary energy reduction up to 20% for S, E, & W perimeter zones  Peak demand reduction of up to 25%  2006 LBNL/CEC PIER field study:  Baseline = spectrally selective low-e, daylighting controls, blinds  Daily lighting energy savings of up to 26%  Cooling load reduced by up to 8%  Peak cooling demand reduced by up to 26%

9. www.esource.com || © 2013 E Source9 Electrochromic Windows: Finally Affordable? February 25, 2009 November 11, 2010 November 12, 2012 August 5, 2011

10. www.esource.com || © 2013 E Source10 Electrochromic Windows: Finally Affordable? February 25, 2009 November 11, 2010 November 12, 2012 August 5, 2011 Feb 2009Sage receives $20 million investment from Good Energies, Bekaert, & Applied Ventures Nov 2010Saint-Gobain invests $80 million in Sage Aug 2011Lux Research predicts global market for dynamic windows will be ~$418 million in 2020 (up from $5 million in 2011) Lux also predicts EC windows prices will decrease by 5% per year Oct 2011Serious Energy’s CTO leaves company to join Soladigm Jan 2012Soladigm hopes to be shipping windows made in its new $130 million facility May 2012Guardian Industries to market Soladigm windows May 2012Saint-Gobain acquires Sage Nov 2012Soladigm announces commercial readiness of product and company name change to View, Inc. End of 2012 New Sage high volume manufacturing facility for due to be operational – prices predicted to fall from $50 - $75/sqft to $30 - $50/sqft as a result (high performance low-e is $6 - $20/sqft)

11. www.esource.com || © 2013 E Source11 Electrochromic Windows: Do They Payback?  $30/sqft  9 ft high walls  0.6 WWR  100’ x 100’ footprint  20% electricity savings (ignore demand savings/demand charges)  2 story office building  17.3 kWh/sqft /yr from BEB  $0.10/kWh  540 sqft of windows per wall per floor (2160 per floor) (4320 overall)  Cost of windows = $129,600  346,000 kWh/yr before, 69,200 kWh saved  $6920 savings/yr  19 year simple payback

12. www.esource.com || © 2013 E Source12 Coming to a Building Near You? Colorado State University Morgan Library Source: glassmagazine.com Kimmel Center for the Performing Arts in Philadelphia Source: sageglass.com W Hotel in San Francisco Source: forbes.com

13. www.esource.com || © 2013 E Source13 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

14. www.esource.com || © 2013 E Source14 Cloud Thermostats Source: photoeverywhere.co.uk

15. www.esource.com || © 2013 E Source15 Here’s How They Work

16. www.esource.com || © 2013 E Source16 ItemValue First costs$500 to $1,000 per thermostat installed Annual costs$200 to $300 per thermostat Energy savings10% to 50% of overall energy costs Other benefitsReduced O&M costs Costs and Benefits © E Source

17. www.esource.com || © 2013 E Source17 Now, the Fine Print  Few independent savings analyses  Ability of vendors to manage quality and reliability unproven  Potential savings vary widely depending on baseline conditions Source: CKSinfo.com

18. www.esource.com || © 2013 E Source18 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

19. www.esource.com || © 2013 E Source19 LED Troffers: Coming of Age Troffers are the most common fluorescent fixture :  Operate 10.5 hours/day  Lots of peak hours  Draw 25W to 113 W  Millions of installed fixtures  Utility programs: custom and prescriptive © E Source Source: Lithonia

20. www.esource.com || © 2013 E Source20 A Wealth of Products  Design Lights Consortium Qualified Products List  >200 2x4 products listed  At least 65 lumens per watt  35,000-hour life Source: Finelite Source: GLT Source: GE Lighting

21. www.esource.com || © 2013 E Source21 Samples from the QPL list Other manufacturers include GE (Lumination), Philips (Daybrite), Cooper Lighting, Maxlite, Albeo, and Lunera Brand NameModel Measured Luminaire Efficacy (lm/W) Measured Light Output (lm) Rated Lifetime (hours) Measured CRICCT (K) Lithonia Lighting2RTL 102 5,07360,000834123 CREE LED Lighting CR24 115 4,21750,000923404 Finelite Inc.HPR 89.9 6,085100,000833684 Hubbell/ColumbiaLEPC 108 439650,000833687 Fluorescent—top 25 percent >74.0 40,000+85.0 © E Source

22. www.esource.com || © 2013 E Source22 LED Troffers at E Source  $20,854 price premium over fluorescent  $2,300/year energy and maintenance savings  9-year payback  Custom incentive (awaiting approval)

23. www.esource.com || © 2013 E Source23 How to Spec an Efficient Troffer  U.S. DOE’s Commercial Buildings Energy Alliance http://www1.eere.energy.gov/buildings/commercial/bba.html  Design Lights Consortium Qualified Products List http://www.designlights.org/solidstate.about.QualifiedProducts List_Publicv2.php  City of Palo Alto Utilities!

24. www.esource.com || © 2013 E Source24 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

25. www.esource.com || © 2013 E Source Commercial Plug Loads are a Big Deal! 25 Images Courtesy Wikimedia Commons

26. www.esource.com || © 2013 E Source26 Smart Power Strips Are Supposed to Help… Image Courtesy Wikimedia Commons

27. www.esource.com || © 2013 E Source27 …But They Can Present Challenges  Difficult to determine the best strategy for a given plug load  Company-wide installation can be challenging.  Tough to determine savings  Employees can change settings or unplug the smart strip altogether Image Courtesy Wikimedia Commons

28. www.esource.com || © 2013 E Source28 Introducing Enmetric! Image used without permission! For now...

29. www.esource.com || © 2013 E Source29 What Makes it Different?  Multiple control strategies for up to four plugs  Scheduled and load-sending control options  Communicates wirelessly  Uses a centralized web portal  All settings can be adjusted in one place  Easy monitoring and reporting  Simplifies installation and set-up of power strips  Can intelligently reduce peak load  OpenADR-compliant for use with demand response  Designed to monitor and control hundreds of plug loads in commercial settings!

30. www.esource.com || © 2013 E Source30 Or just go old school!

31. www.esource.com || © 2013 E Source31 Measured Savings

32. www.esource.com || © 2013 E Source32 Overall takeaways  Office energy use was most significantly reduced by timer control  Overall reduction of about 50%  The largest savings were for loads that run 24/7  Laptops and monitors may not be the best targets if they already employ effective settings  Installed costs vary  $100 per web-connected strip, timers are $10  Simple payback periods can vary widely  Can range from <1 to nearly 50 years!

33. www.esource.com || © 2013 E Source33 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

34. www.esource.com || © 2013 E Source34 What’s Bubbling Up on the Rooftop? Source: David Monniaux

35. www.esource.com || © 2013 E Source35 Opportunity… Source: Wikimedia Commons

36. www.esource.com || © 2013 E Source36 Little Boxes

37. www.esource.com || © 2013 E Source37 Benefits  Annual energy savings claims:  Catalyst: 25 - 40 percent  Enerfit: 50 - 70 percent  Digi-RTU:45 - 64 percent  Optimum’s:25 - 45 percent  Payback claims:  Catalyst:~ 2 years  Enerfit: 1-3 years  Digi-RTU: <1 year (large RTUs); <4 years (small RTUs)  Better humidity control  Reduced maintenance

38. www.esource.com || © 2013 E Source38 Four New RTU Retrofit Products  Catalyst Transformative Wave Technologies  Enerfit Enerfit LLC  Digi-RTU Optimizer DTL Controls  Unnamed controller (available in 6-8 months) Optimum Energy

39. www.esource.com || © 2013 E Source39 Features  All add VFD controls for the evaporator fan  In addition:  Catalyst:  Integrated and differential economizer controls  Demand controlled (based on occupancy and internal CO2)  Optional web interface  Working on fault detection and diagnostics (FDD) platform  Enerfit:  Demand Controlled capable  Optional web interface  Economizer controls

40. www.esource.com || © 2013 E Source40 Features (cont)  Digi-RTU Optimizer  VFD on compressor  Optional web interface  Working on demand control, economizer controls and FDD  Optimum’s controller  VFD on compressor and both evaporator and condenser fans  Built-in web interface; some degree of FDD  Working on demand control, economizer controls

41. www.esource.com || © 2013 E Source41 Recent tests look good!  Independent studies:  Snohomish PUD  Seattle City Light  Puget Sound  National Grid  NSTAR  California utilities  Omaha Public Power District  Western Cooling Efficiency Center Source: Wikimedia Commons

42. www.esource.com || © 2013 E Source42 Latest and Greatest in Efficiency Tech  Electrochromic windows  Cloud Thermostats  LED Troffers  Controlling office plug loads  RTU Retrofits  enLighted

43. www.esource.com || © 2013 E Source What is enLighted?  A new approach to wireless lighting control  Easy installation and calibration  Flexible and autonomous  Lighting savings ranging from 50-70% with a short simple payback Courtesy: Wikimedia Commons

44. www.esource.com || © 2013 E Source How does it work? 44 Gateway Ethernet Green Energy Manager (GEM) Sensor Courtesy: enLighted Inc.

45. www.esource.com || © 2013 E Source45 What types of sensors are used?  Occupancy  Daylight  Thermometer  Power meter Courtesy: enLighted Inc.

46. www.esource.com || © 2013 E Source Sensor data mapping 46 Courtesy: enLighted Inc.

47. www.esource.com || © 2013 E Source47 Savings tracking Courtesy: enLighted Inc.

48. www.esource.com || © 2013 E Source48 Economics Retrofit Building 25K sq ft CaliforniaMassachusettsNew YorkOregon Electricity Rate (cents/kWh) 12.9818.0114.997.95 Annual Lighting Electricity Cost$22,000$31,000$25,000$14,000 enLighted Lighting Energy Savings (71%)$15,513$21,859$17,628$9,872 enLighted Annual Operational Savings (Bulb life + HVAC effects) $4,989$5,954$5,375$4,025 Total Annual enLighted Savings$20,502$27,813$23,003$13,896 Total Solution Cost (includes ballast and labor) $36,630 Federal Tax deductions for lighting controls$5,250 ROI (months) (includes utility rebates) 13 months10 months12 months19 months ROI w/o rebates/incentives (months) 18 months13 months16 months27 months Courtesy: enLighted Inc.

49. www.esource.com || © 2013 E Source49 Additional benefits  Demand response  Enables participation in demand response programs (either automatic or manual)  Intelligent dimming of lights  Possible BAS integration  HVAC  Security  Fire  LEED compliant  Adds ~6-10 points in a typical open-plan commercial lighting space with T8 fixtures  Averts integration headaches  To get a comparable system, NEEA had to combine multiple different systems and create a brand new control box

50. www.esource.com || © 2013 E Source50 Questions?