0
Enphase Micro-inverter System
        Micro inverter
Enphase Background


Founded in 2006

Located in Petaluma

Cross-disciplinary
team
The Enphase Micro-Inverter


  Definition: Micro-Inverter
  A micro-inverter is a device that takes the DC output power of...
Key Elements


Enphase Micro-Inverter System:
  Enphase Micro-Inverter

  Envoy Energy Management Unit (EMU)

  Enlighten™...
Enphase Micro-inverter System
Enphase Micro-inverter System
 Value Proposition
  a ue opos t o

                     Energy Harvest Gains:
[ Productive ...
Enphase Micro-inverter


One inverter per module
Inverter specifically matched to module configuration
Per-module Maximum ...
Impact on Production
Compounded IV Curve
Impact on Production
Compounded IV Curve
Impact on Production – Shade
Impact on Production - Shade
Impact on Production - Orientation
Impact on Production
Module Mismatch
Burst Mode


Low irradiance (e.g. beginning/end of day)

Micro-inverter stores energy until sufficient to “burst”

0.5 1.0...
Burst Mode



BURSTING STORING BURSTING STORING BURSTING




                                      [ 15 ]
Energy Production Comparison
Enphase vs. Traditional Inverter
  p




                                                    ...
Energy Production Comparison
Enphase vs. Traditional Inverter
  p




                                                    ...
Site #3: Energy Production Comparison
Dust & Debris Comparison

                                                Sample Dat...
Reliability - RESULTS



                               MTBF
                           330 years
[ Reliable ]
           ...
Increased Unit Reliability


330 year MTBF

Distributed thermal
footprint

Operates at full power
up to 65˚C (149˚F)

Rugg...
Increased System Availability


 No single p
       g point of system failure
                   y

 Problems are isolated...
Smart - Results




                     BOS & Labor Savings:
                        up to 15%

[ Smart ]               I...
Simplifies Design




No STRING Sizing
 Calculations
 C l l ti
Simplifies Design


Utilize all available roof space

Fully utilize inverter

Any combination of module quantity, type, ag...
Simplifies System Design


 No DC balance-of-system components
                   y        p

 No DC combiners, recombiner...
Simplifies Design


 Allows for small PV systems projects
                      y      p j

 System can be easily expanded...
Simplifies Installation


Quickly mounts on the PV racking

Aesthetically ideal installation

Low voltage DC

No large inv...
M190 Micro-Inverter

60 & 72 cell module compatibility

CEC Efficiency = 95%

12 per carton – 288 per pallet

Polyurethane...
Smart Communications


Communications gateway
Plug & play
Power-line
Power line communications
No communication wiring to
...
Enlighten
Smart Monitoring


Enphase Enlighten™
        Enlighten

Web based monitoring and
analysis
    y

Ensures maximu...
Enlighten
Smart Monitoring

 Immediate and historical
 system performance trends
    t      f        t     d
 Per module i...
Enlighten
  Smart Monitoring
                 g

Login: demo@enphaseenergy.com
Password: microinverter




               ...
Entrust Program


 15 Year Standard Warranty
  – Simple RMA process
  – Advanced troubleshooting through Enlighten
  – New...
Enphase Micro-inverter System
        Micro inverter
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9096 Enphase Introduction

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Enphase Presentation at CCSE

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Transcript of "9096 Enphase Introduction"

  1. 1. Enphase Micro-inverter System Micro inverter
  2. 2. Enphase Background Founded in 2006 Located in Petaluma Cross-disciplinary team
  3. 3. The Enphase Micro-Inverter Definition: Micro-Inverter A micro-inverter is a device that takes the DC output power of a single solar module and converts it into grid-compliant AC power. AC Jack AC Cable DC Cables CSA-listed per UL1741 15 Year 15-Year Standard Warranty
  4. 4. Key Elements Enphase Micro-Inverter System: Enphase Micro-Inverter Envoy Energy Management Unit (EMU) Enlighten™ web based analytics and visualization
  5. 5. Enphase Micro-inverter System
  6. 6. Enphase Micro-inverter System Value Proposition a ue opos t o Energy Harvest Gains: [ Productive ] 5 - 25% MTBF: System [ Reliable ] 330 years ROI Gain: 20 % BOS & Labor Savings: [ Smart ] 12 - 15%
  7. 7. Enphase Micro-inverter One inverter per module Inverter specifically matched to module configuration Per-module Maximum Power Point Tracking (MPPT)
  8. 8. Impact on Production Compounded IV Curve
  9. 9. Impact on Production Compounded IV Curve
  10. 10. Impact on Production – Shade
  11. 11. Impact on Production - Shade
  12. 12. Impact on Production - Orientation
  13. 13. Impact on Production Module Mismatch
  14. 14. Burst Mode Low irradiance (e.g. beginning/end of day) Micro-inverter stores energy until sufficient to “burst” 0.5 1.0% 0 5 – 1 0% additional harvest
  15. 15. Burst Mode BURSTING STORING BURSTING STORING BURSTING [ 15 ]
  16. 16. Energy Production Comparison Enphase vs. Traditional Inverter p Installation in Petaluma, CA 24 Suntech 175W modules in checker board pattern Traditional string inverter – CEC efficiency – 94.5% y Independent meter – 1% Energy Production Gain 14% Enphase Energy Proprietary & Confidential [ 16 ]
  17. 17. Energy Production Comparison Enphase vs. Traditional Inverter p Installation in Los Altos CA Altos, 54 BP 175W modules in parallel rows Traditional string inverter – CEC efficiency – 96% Independent meter – 1% Energy Production Gain 7% Enphase Energy Proprietary & Confidential [ 17 ]
  18. 18. Site #3: Energy Production Comparison Dust & Debris Comparison Sample Data No Shading Maple Leaf Shading Installation in Auburn, CA 60 165W modules Traditional string inverter – CEC efficiency – 96% Independent meter – 1% accurate Increased Energy: 3%
  19. 19. Reliability - RESULTS MTBF 330 years [ Reliable ] System Availability > 99.8% Maximum System Availability
  20. 20. Increased Unit Reliability 330 year MTBF Distributed thermal footprint Operates at full power up to 65˚C (149˚F) Rugged NEMA type 6 enclosure rating No fans / moving parts
  21. 21. Increased System Availability No single p g point of system failure y Problems are isolated to a small fraction of array Service becomes routine maintenance System monitoring, advanced analytics, and automatic notifications All these points lead to a 99.8% system availability, included with every system
  22. 22. Smart - Results BOS & Labor Savings: up to 15% [ Smart ] IRR Increase: 17% Simplifies System Design and Management
  23. 23. Simplifies Design No STRING Sizing Calculations C l l ti
  24. 24. Simplifies Design Utilize all available roof space Fully utilize inverter Any combination of module quantity, type, age A bi i f d l i
  25. 25. Simplifies System Design No DC balance-of-system components y p No DC combiners, recombiners, fuses, switches Fewer AC inverter branch circuits than DC module strings Results in less wire runs
  26. 26. Simplifies Design Allows for small PV systems projects y p j System can be easily expanded – Planned future system expansion – Underperforming systems
  27. 27. Simplifies Installation Quickly mounts on the PV racking Aesthetically ideal installation Low voltage DC No large inverter to locate No long wire runs from array to inverter No custom MC extension cables required No DC conduit runs from array to inverter Use of Romex within structure - no conduits
  28. 28. M190 Micro-Inverter 60 & 72 cell module compatibility CEC Efficiency = 95% 12 per carton – 288 per pallet Polyurethane potted 190Wac output 208 & 240V model 330 year MTBF 30% smaller
  29. 29. Smart Communications Communications gateway Plug & play Power-line Power line communications No communication wiring to inverters Micro-Inverters automatically begin reporting to Enlighten™ Immediate system verification during installation
  30. 30. Enlighten Smart Monitoring Enphase Enlighten™ Enlighten Web based monitoring and analysis y Ensures maximum energy harvest
  31. 31. Enlighten Smart Monitoring Immediate and historical system performance trends t f t d Per module information Displays real-time, d il Di l l ti daily, monthly and lifetime data Errors and warning messages g g emailed to user 24/7 analysis alerts you of issues Enphase is a qualified CSI PMRS data provider
  32. 32. Enlighten Smart Monitoring g Login: demo@enphaseenergy.com Password: microinverter Enphase Energy Proprietary & Confidential [ 32 ]
  33. 33. Entrust Program 15 Year Standard Warranty – Simple RMA process – Advanced troubleshooting through Enlighten – New inverters System Up-time Guarantee – Requires Enlighten service – 30 power production reimbursement – Calculated from 30 day history Reimbursement Program – $150 per inverter replacement (with Enlighten, $75 without) Enphase Energy Proprietary & Confidential [ 33 ]
  34. 34. Enphase Micro-inverter System Micro inverter
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