1. Solar Project Performance Assessment
Firstgreen Webinar Series : 29th April 2014

2. About Firstgreen Consulting
Project Management Consulting
Due diligence including technical, commercial and environmental services, Design and development  including pre-contract negotiations, Land identification, Vendor finalisation, Preparation of RFP and RFQ, Equipment procurement, Site supervision
Detail Engineering & Design
Plant layout & design, Solar PV system sizing, Module & inverter selection, Shadow analysis, DC cable route planning, Monitoring & control system design, AC system design, Plant storm water planning, Power evacuation planning
Lender’s Engineer
Borrower financial appraisal, technical due diligence, assessment of power off take arrangements, engineering design review, review of compliance and approvals, review of plant performance guarantees and warrantees, Site supervision
Project Financing
Arranging finance from domestic banks, Private equity funding, Arranging the buyer’s credit, organising the collaterals, bridge loan financing,

3. Speakers Dr. Sanjay Vashishtha CEO, Firstgreen Consulting
Mr. Basant Jain
CEO Mahindra EPC

4. Key Topics

5. Solar Plant Performance Assessment

6. Performance of Solar Plants in India
The Performance of Solar Plants has been improving over last few years

7. Requirement of SPV plant Assessment
Gangesh Green
CUF 12.2%
Waa Solar
CUF 20.6%
Plant performance is dependent on BoS and System Sizing
It is also dependent on the better O&M practices

8. Plant Data Monitoring Strategies
V,I
V,I, kWh
kWh
At the PV panels the solar radiation is being recorded
At string level measurement of current & Voltages are monitored
At inverter level V,I are measured at the input as well as at output level. The kWh is also measured
The energy injected to the grid is measured at the ABT meter

9. Performance Assessment at String Level

10. String Performance can be affected due to Five Key Factors
The Underperforming string

11. Shadow Losses
Shadow losses can significantly reduce your plant performance

12. Inter-row spacing and Shading
Inter row shading needs to be optimised. This can cause significant losses in your plant.

13. Monitoring the String Voltage and Currents
IV Curve of a partially shaded string

14. Benchmarking of String Performance
Array string performance to each other.
String performance to a Standard Panel.
String performance to specific Solar Radiation level.
Panel to Panel performance within a string or to standard.

15. Inverter Performance Analysis
This inverter is performing poorest
This inverter is performing best

16. Assessment of Plant losses

17. Monitoring instruments
Thermography
Megger
Tong tester
Power meter
IV Tracer
Pyranometer

18. Use of Thermography in Solar Plant Performance Assessment

19. Step by Step Approach to conduct Plant Performance Assessment

20. Five Step process for Plant Performance Assessment
Feasibility analysis
Identification of Options
Site Assessment
: Planning and organization
Priorities the feasible options
Where are the bottlenecks?
Validate the available Information
Analyze the data in advance
Implement the options
Monitor the results for continuous improvement?

21. Questions ?

22. Thank You Questions ? First Green Consulting Private Limited
U-28A/3 FF, White Town House
DLF Ph III Gurgaon,
Haryana – , India
Tel.: (+91) ,
Fax: (+91)