1. Power plant monitoring for reliable performance and safe investment Grid-Connected PV Systems – Business and Technological Opportunities and Developments in Indonesia 5 May 2014, Jakarta, Indonesia www.skytron-energy.com

2. Page 2 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Neuhardenberg – Germany / Enerparc, 76.57 MWp, 2012 & pv backoffice, 61.72 MWp, 2013 250 ha or 618 ac  350 Football Fields

3. Page 3 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Module Price BOS Price Project Price Development Development of Project EPC Prices

4. Page 4 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Monitoring?

5. Page 5 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Monitoring of Power Production in Solar PV 01 Why? 02 Situation? 03 How? 04 And now?

6. Page 6 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Why

7. Page 7 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Why Damaged Modules (mounting, manufacturing) Lightning Bad Installation Module Degradation

8. Page 8 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Why Less Efficient String Performance Animal Weed & Plant Dust, Dirt & Shadowing Dust, Dirt & Shadowing

9. Page 9 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Why Inverter Down no I 1 1 Clouds 2 2 V operating 3 3 Clouds (identical variations in current and irradiation curves) 4 4 Power failure 5 5 Voc = 900 V 6 6 7 7 “Don‘t let the sun go down on me”

10. Seite 10 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH Investors & Banks Insurances EPC & Plant Operators Grid Operator O&M / Control Room Why? Who Is Interested? Efficiency & Availability Safety & Reliability Maximum Yields Secure Investments & ROI Grid Stability & Service

11. Page 11 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 01 Why? 02 Situation? 03 How? 04 And now? Remote Control of Power Production in Solar PV

12. Page 12 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Situation Source: MEMR 2013

13. Page 13 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 QUALITY COUNTS Situation Sample Plant : 51 MW DC Installed / 75 Central Inverters / 9528 Strings Located in Indonesia (adapted to sample plant) 1800 kWh/kWp in 2013 PPA 0.10 USD/kWh

14. Page 14 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 01 Why? 02 Situation? 03 How? 04 And now? Remote Control of Power Production in Solar PV

15. Page 15 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Measure Collect Save Calculate Manage Visualize Analyze Control “Monitoring” How? Know what is going on in the plant! Instrumentation and Control, or Monitoring, Control and Supervision

16. Page 16 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Monitoring: Generator Field All electrical quantities (string currents, voltages) Ambient conditions – solar irradiation, weather Monitoring: Inverters Monitoring should be independent of inverter type and make How? Maintain a comprehensive plant database!

17. Page 17 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Monitoring of the PV generator High resolution, high precision → real-time monitoring String currents: 100 ms scan rate, 0.5% precision Data acquisition, locally, on site (= data logging) Short-term data storage (weeks): 1-minute mean values Long-term data storage ( = Data Hosting) Data maintenance and analysis over entire plant life cycle Control Room (SCADA) How? Supervise the entire plant!

18. Page 18 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 How? Keep the power feed under control! 04 SUPERVISORY LEVELPVGuard® 03 CONTROL LEVEL EnergyGuard skycontrol skylog® 01 SENSOR LEVEL ArrayGuard® StringGuard® skyCONNi® 02 DATA ACQUISITION LEVEL System Overview

19. Page 19 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 01 Why? 02 How? 03 Example 04 And now? Remote Control of Power Production in Solar PV

20. Page 20 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 1995199819992008 solar city Award (Stadt Berlin) Nominated for eco design Award (Austria) Environment Award (Stadt Berlin) Intersolar Award for StringGuard® String Current Monitoring PVGuard® Control Room Platform (SCADA) skytron energy GmbH 2012 and 2013: Nominated for Intersolar Award for our skycontrol power plant controller 2012 Committed to “Renewables”

21. Page 21 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH CANADA 67.9 MWp UNITED KINGDOM 50.3 MWp FRANCE 191.6 MWp SPAIN 70.9 MWp ITALY 267.5 MWp SLOVAKIA 2 MWp GREECE 7.2 MWp UKRAINE 751.6 MWp CZECH REPUBLIC 72.1 MWp GERMANY 2 459.7 MWp BELGIUM 10.4 MWp THAILAND 18.1 MWp BULGARIA 8.2 MWp TONGA 1 MWp CHILE 31.7 MWp 4.5 GWp worldwide rely on skytron® energy QATAR 0.7 MWp ROMANIA 154.9 MWp MALAYSIA 5.4 MWp KUWAIT 0.117 MWp AUSTRALIA 0.13 MWp URUGUAY 1.8 MWp SAUDI ARABIA 0.15 MWp MAURITIUS 15 MWp USA 5.8 MWp INDIA 296 MWp RUSSIA 1 MWp ISRAEL 4.1 MWp OFFICES: DALLAS / SANTIAGO DE CHILE / BERLIN / CAPE TOWN / BANGALORE / SINGAPORE / BEIJING

22. Page 22 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH Positioning Customers – Samples Global Customer Base and Long-term Relations GermanyEuropeAsiaUS

23. Page 23 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Worldwide Service & Support Operation & Maintenance Service - Fulfilling Your Needs - Project Engineering Data Logging Planning Commissioning Optimum Start Maintenance Fresh Cell Therapy Control Room Everything Under Control Workshops O&M Consulting Sustainable Training&Set Up Our Hotline For Rapid Support Avoid expensive retrofitting from the outset - depending on the installation site and the applied PV plant components, our project engineering team plans all the measurement points that require monitoring. We provide the complete configuration of necessary technology, data communication and data banks, in addition to the adjustment of the power plant control system to meet the requirements of the local public utility company. Extend the lifecycle of your PV power plant and the warranty of your installed components! Our maintenance team inspects, repairs and updates your power plant on a continuous basis. Our highly- trained control room team, with its extensive experience in renewable energies, provides permanent management, monitoring, documentation and analysis of your PV power plant. skytron PV plant monitoring and control solutions are comparatively unique in the young solar market. For a good introduction and to cover the basics of our monitoring concept, we offer regular training workshops at our head office in Berlin. So as to be able to react quickly and competently to your requests in the case of an emergency, we provide a number of ways for you to quickly reach the right contact person

24. Page 24 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 Forecast Integration ›Forecast capabilities are already included and will be enhanced continuously ›A state-of-the-art photovoltaic power plant production prognosis is available for all plants monitored in PVGuard® ›The self-learning forecast algorithm doesn‘t need any plant specific configuration ›Prognosis is based on high quality weather forecast ›Forecast includes energy yield (plant level), radiation and temperature ›Up to six days in one hour resolution Yield Prognosis Example: green - plant power blue - prognosis

25. Page 25 Grid-Connected PV Systems in Indonesia - 05 May 2014 © skytron energy GmbH F_R01-02_121205 “The bitterness of poor quality is remembered long after the sweetness of low price has faded from memory.” Aldo Gucci quote Monitoring & Control PLUS Cooperative System Engineering YES, WE CAN!