Reference Monitoring @ Q-CellsIntersolar 2011

CONTENT

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1. NETWORK OF REFERENCES UNDER MONITORING

2. EXAMPLES OF PERFORMANCE DATA

3. LIVE LOG-IN TO WEB PORTAL

Network of References under Monitoring (1)

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Why reference monitoring?

In reality, STC conditions almost never occur… Crucial is the performance under real conditions, in different applications and segements!

Monitoring and development of Q-Cells products under real conditions (ex. Anti PID-Technology)

Network of References under Monitoring (2)

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Why reference monitoring?

Benefits for you:

Improved performance calculations due to energy yield simulation under real life conditions

Optimisation of system design and installation based on real performance data

Broad reference data base for installation benchmarking

Worldwide Reference Network under Monitoring

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Currently about 68 reference sites under monitoring Covering nearly all climate conditions, applications, and segments

We need you to further build up the worldwide network!

CONTENT

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1. NETWORK OF REFERENCES UNDER MONITORING

2. EXAMPLES OF PERFORMANCE DATA

3. LIVE LOG-IN TO WEB PORTAL

* Period: 2010; ** independent certified engineering service (yield certificate)

REFERENCE UNDER MONITORING

Project: StraßkirchenLocation: Bavaria, GermanyPower: 51 MWpOrientation: SouthInclination: 25°Installation: December 2009Segment: Utility Application: Field installationPerformance Ratio*: 86%Simulated PR**: 81,6%

*Period: May 18 – May 31 2011

REFERENCE UNDER MONITORING

Project: PotsdamLocation: Brandenburg, GermanyPower: 8.46 kWpOrientation: SouthInclination: 30°Installation: 2010Segment: ResidentialApplication: RooftopPerformance Ratio*: 86%

Überwachte Referenzanlage

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REFERENCE UNDER MONITORING

Project: DelitzschLocation: Saxony, GermanyPower: 5,4 kWpOrientation: SouthInclination: 40°Installation: March 2010Segment: ResidentialApplication: RooftopPerformance Ratio*: 86%Special Energy Yield*: 1049 kWh/kWpSimulated PR**: 86,8%Simulated Yield**: 1004 kWh/kWp

* Period: March 2010 – February 2011, **PV*SOL Simulation with Application Note

REFERENCE UNDER MONITORING

Project: SchackenthalLocation: Saxony Anhalt, GermanyPower: 30,34 kWpOrientation: South-South-EastInclination: 14°Installation: March 2010Segment: C&IApplication: FlatroofPerformance Ratio*: 85%Specific Energy Yield*: > 903 kWh/kWpSimulated PR**: 87,5%Simulated Car**: 951 kWh/kWp

* Period: March 29th 2010 – March 28th 2011, **PV*SOL Simulation with Application Note

REFERENCE UNDER MONITORING

Project: Alice SpringsLocation: Alice Springs, AustralaPower: 5,61 kWpOrientation: NorthInclination: 20°Segment: Utility (test site)Weblink: http://www.dkasolarcentre.com.au/

Best performance under extreme conditions

CONTENT

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1. NETWORK OF REFERENCES UNDER MONITORING

2. EXAMPLES OF PERFORMANCE DATA

3. LIVE LOG-IN TO WEB PORTAL

Live Login to Web Portal

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Q.PRO example system

Q.SMART example system

Login-Data: www.q-cells.com/monitoring

Username: qcells_intersolar_deu

qcells_intersolar_eng

Password: 2011intersolar

Temporary login to web portal for intersolar guests

THANK YOU.

REFERENCES UNDER MONITORING

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Irradiance cell (in module plane)

Module temperature sensor

Ambient temperature sensorEnergy counter

Data logger

Database

WAN/GSM

Analogue signals

Digital Signal (S0)

Bus (RS485)Web server / Portal

www

Inverter interface

Monitoring Components

References under Monitoring – Indicators

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SPECIFIC ENERGY YIELD [kWh / kWp]

Energy feed into grid normalized to installed nominal (STC) module power

PERFORMANCE RATIO [%]

Irradiance sensor is needed to calculate PR! Describes, how efficient the incoming irradiance energy is used Performance Ratio = 100%: The entire system runs with

nominal module efficiency

Überwachung von Referenzanlagen – Kennzahlen

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Loss factors: Inverter efficiency, wiring, low light behavior, temperature and shading

Common knowledge, annual PR > 80%: “Good” value

REFERENCE UNDER MONITORING

Project: SteutzLocation: Saxony Anhalt, GermanyPower: 22,05 kWpOrientation: SouthInclination: 32°IInstallation: March 2010Segment: C&IApplication: RooftopPerformance Ratio*: 87%Special Energy Yield*: 1041 kWh/kWpSimulated PR**: 86%Simulated Yield**: 994 kWh/kWp

* Period: March, 18th 2010 – March, 17th 2011, **PV*SOL Simulation with Application Note

Überwachte Referenzanlage

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REFERENCE UNDER MONITORING

Project: Solibro FacadeLocation: Saxony Anhalt, GermanyPower: 17 kWpOrientation: SouthInclination: 90°Installation: June 2008Segment: C&IApplication: BIPVPerformance Ratio*: 84%Special Energy Yield*: 705 kWh/kWp

* Period: 2010