The document discusses optimization of PV plant design based on analysis of performance data from 50 PV plants in India totaling 2GW of installations. It finds that CUF (capacity utilization factor) varies significantly between plants from 12.2% to 21.3% despite similar conditions, and that top performing plants have a CUF 6% higher than average. Further analysis shows performance is impacted not just by panels and inverters but also factors like civil works, string/combiner boxes, transformers, and mounting structures. The document advocates taking a holistic design approach and using performance ratio in addition to CUF for improved plant monitoring and optimization.
PVSyst is a standard tool for determining the generation from a solar plant, however there is little standardisation over the losses to be assumed.
Based on Gensol's experience, every loss has been analysed & through this document we are indicating on the loss percentage to be assumed.
Balance of System (BOS) of a Solar Project has undergone a significant price reduction but continuous optimisation is making the trend continuing to go further down.
The presentation discusses on aspects around over-loading, cable optimisation, introduction of 1500 V systems and many other interesting optimisations.
PVSyst is a standard tool for determining the generation from a solar plant, however there is little standardisation over the losses to be assumed.
Based on Gensol's experience, every loss has been analysed & through this document we are indicating on the loss percentage to be assumed.
Balance of System (BOS) of a Solar Project has undergone a significant price reduction but continuous optimisation is making the trend continuing to go further down.
The presentation discusses on aspects around over-loading, cable optimisation, introduction of 1500 V systems and many other interesting optimisations.
Performance paramter and suggestion to optizing the performnce of grid connec...Ashish Verma
performance evaluation of Solar PV plant ,in term of technology , financial investment , research and development is very important for growth of Solar PV Industry .
Solar power sector: Technology, BoS, Pre Feasbility and phase of project dev...Ashish Verma
Key Solar PV technology and future perspective, penetration
Trend in Balance of system, cost projection
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Credit: Bhuwan Mehta, PwC
Gensol Consultants
IRENA, IRELP, AMPSolar
The technical risks in solar PV projects are arising mainly in modules, inverters, other equipment. These risks are unpredictable and can be occurred in any phases of life cycle of PV project like development, installation, commissioning and operation leading to plant outage or reduction in energy output. The presentation covers the various risks and associated mitigation measures.
Photovoltaic Training - Session 4 - Plant MaintenanceLeonardo ENERGY
Importance of good maintenance procedure in the plant operation.
•
Components to be maintained.
o
PV Panel.
o
Inverter.
o
Transformer.
o
Solar tracker.
o
Cabinet.
•
Types of maintenance
o
Corrective maintenance.
o
Preventive Maintenance.
•
Supplies.
o
Critical elements.
o
Guarantees.
•
Management of spare parts and stock.
•
Types of inspections and reach
o
Visual inspections.
o
Deep inspections.
o
Frequency of revisions.
Gensol strives to add value from Project Conceptualisation to Commissioning to ensure timely, quality and cost effective completion. From drafting exhaustive EPC contracts to approving engineering drawings and quality control during construction, Gensol's experience of 1500 MW works to ensure Peace of Mind for the Project Developer.
What services should a solar project developer expect from solar park & how much each service can be valued.
The ppt clears concept on value add by solar park.
Solar PV O&M looks easy however maintaining a Solar PV Plant at top performance is a task and based on the experience of Solarig-Gensol in maintaining a 2 GW portfolio of solar plants in India, here are some basics on Solar O&M.
Presentation has the following contents:
a) Balancing Soiling Losses with case study
b) Monitoring & Corrective Maintenance
c) Performance Ratio & Uptime Guarantee
d) Impact of O&M on IRR
Guidelines for Grid-connected Small Scale (Rooftop) Solar PV Systems for Tami...Headway Solar
Official Guidelines for Grid-connected Small Scale (Rooftop) Solar PV Systems for Tamil Nadu.
This document is not a work of Headway Solar (http://headwaysolar.com/) and it has been released here for the benefit of the general public.
Drivers and Barriers in the current CSP marketLeonardo ENERGY
This webinar will provide a general view of drivers and barriers for CSP development, with a particular focus on the structure of the CSP Value Chain. From a technical point of view, the main key performances will be reviewed for the different technologies.
Performance paramter and suggestion to optizing the performnce of grid connec...Ashish Verma
performance evaluation of Solar PV plant ,in term of technology , financial investment , research and development is very important for growth of Solar PV Industry .
Solar power sector: Technology, BoS, Pre Feasbility and phase of project dev...Ashish Verma
Key Solar PV technology and future perspective, penetration
Trend in Balance of system, cost projection
Step to make the project bankable, Pre-feasibility for solar
Phase of Solar Project development inUtility scale segment
Credit: Bhuwan Mehta, PwC
Gensol Consultants
IRENA, IRELP, AMPSolar
The technical risks in solar PV projects are arising mainly in modules, inverters, other equipment. These risks are unpredictable and can be occurred in any phases of life cycle of PV project like development, installation, commissioning and operation leading to plant outage or reduction in energy output. The presentation covers the various risks and associated mitigation measures.
Photovoltaic Training - Session 4 - Plant MaintenanceLeonardo ENERGY
Importance of good maintenance procedure in the plant operation.
•
Components to be maintained.
o
PV Panel.
o
Inverter.
o
Transformer.
o
Solar tracker.
o
Cabinet.
•
Types of maintenance
o
Corrective maintenance.
o
Preventive Maintenance.
•
Supplies.
o
Critical elements.
o
Guarantees.
•
Management of spare parts and stock.
•
Types of inspections and reach
o
Visual inspections.
o
Deep inspections.
o
Frequency of revisions.
Gensol strives to add value from Project Conceptualisation to Commissioning to ensure timely, quality and cost effective completion. From drafting exhaustive EPC contracts to approving engineering drawings and quality control during construction, Gensol's experience of 1500 MW works to ensure Peace of Mind for the Project Developer.
What services should a solar project developer expect from solar park & how much each service can be valued.
The ppt clears concept on value add by solar park.
Solar PV O&M looks easy however maintaining a Solar PV Plant at top performance is a task and based on the experience of Solarig-Gensol in maintaining a 2 GW portfolio of solar plants in India, here are some basics on Solar O&M.
Presentation has the following contents:
a) Balancing Soiling Losses with case study
b) Monitoring & Corrective Maintenance
c) Performance Ratio & Uptime Guarantee
d) Impact of O&M on IRR
Guidelines for Grid-connected Small Scale (Rooftop) Solar PV Systems for Tami...Headway Solar
Official Guidelines for Grid-connected Small Scale (Rooftop) Solar PV Systems for Tamil Nadu.
This document is not a work of Headway Solar (http://headwaysolar.com/) and it has been released here for the benefit of the general public.
Drivers and Barriers in the current CSP marketLeonardo ENERGY
This webinar will provide a general view of drivers and barriers for CSP development, with a particular focus on the structure of the CSP Value Chain. From a technical point of view, the main key performances will be reviewed for the different technologies.
Solar energy ongoing project by Alejandro PérezASCAME
The energy model on which the majority of cities in developed countries are based upon is characterized by centralization and unsustainability. Barcelona, being a Mediterranean city, faces the challenge to increase its solar energy supply, moving towards a more sustainable energy model, while strengthening the network's business sector.
ASCAME is committed to this initiative, in the framework of the European project FOSTEr in MED gathering together in the auditorium of the Chamber of Commerce, Industry and Navigation of Barcelona, several experts in the field of renewable energy, as well as companies, public authorities, universities and organizations that will analyse the state of sector, its’ trends and the business development scenario emerged.
Contribution to the optimization of energy withdrawn from a PV panel using an...saad motahhir
Considering the high initial capital cost of photovoltaic (PV) panels and their low conversion efficiency, it is imperative to operate the PV system at the maximum power point (MPP). In this context, our goal in this thesis is to develop and improve the PV system, by contributing to the optimization of energy withdrawn from PV panel using an embedded system. For this purpose, in order to simulate and test MPPT algorithm, the model of the PV panel should be first studied in accordance with the real behavior of the PV panel. Therefore, the single diode model of the PV panel is introduced in Matlab/Simulink and PSIM. Moreover, for the first time, the PV panel model is developed in Proteus; an experimental test bench was built to validate the developed model. On the other hand, this work proposes a modified incremental conductance (INC) algorithm to improve the MPP tracker (MPPT) capability for PV system when the irradiation is suddenly modified. Three modifications are made in the INC algorithm, which are described as follows: (1) A check to identify the increase in irradiation and make a correct decision. (2) Eliminate the all-division computations in the INC algorithm and make the algorithm structure simpler allowing the algorithm to be easily implemented by a low-cost embedded system. (3) A modified variable step INC algorithm is used, which can reduce the steady-state oscillations and improve the tracking speed under sudden irradiance variation. The first modification is simulated using PSIM through “Software in the Loop” test and the results show that the modified algorithm provides an accurate response to a sudden variation of solar irradiation with an efficiency of 98.8 %. The second modification is simulated using the PV panel model proposed in Proteus. For verification, a hardware test bench is implemented by using Arduino Uno board in which the low-cost Atmega328 microcontroller is integrated. This has led to a low-cost PV system with an efficiency of 98.5 %. The third modification is developed following the techniques employed in the automotive and aeronautical embedded system. This is done by following the V-cycle development process, which means that our controller will be validated using “Model in the Loop/Software in the Loop/Processor in the Loop” tests. In this sense, integrating the MPPT embedded system in the automotive or the aeronautical area will be possible. It should be mentioned that Matlab/Simulink is used for MIL/SIL/PIL tests, thus STM32F4 board is used for PIL test. On the other side, if minimizing the cost of the PV system is not important than guarantying a very high level of robustness and efficiency, it is required to use a more powerful method. Therefore in this thesis, we design and implement MPPT based on Kalman Filter. The expected outcome of this proposal is an efficient MPPT method which presents a very high level of robustness, reliability and accuracy. The obtained results clearly highlight the superiority of
ARC's Larry O'Brien Process Automation Presentation @ ARC Industry Forum 2010ARC Advisory Group
ARC's Larry O'Brien Process Automation Presentation @ ARC Industry Forum 2010 in Orlando, FL.
Using Process Automation to Optimize Energy Consumption
The Cost of Energy
How Well is Energy Managed in Today’s Plants?
Using Your Process Automation Infrastructure
with an Eye Toward Optimizing Energy
Consumption
The Business Value of Integrated Power &
Automation
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Past and future trends in PV Industry developmentsLeonardo ENERGY
This webinar will address the key drivers of the PV market and industry in the coming years. It will look at the past developments and future scenarios, from a global market development point of view to some key price evolution features. From competitive tenders to the development of distributed PV in China, and the arrival on the market of new industry giants, this webinar will browse the global landscape of PV development.
PV Manufacturing in Europe - European Technology and Innovation Platform Phot...Cluster TWEED
The PV Manufacturing in Europe Conference organised by the European Technology and Innovation Platform for Photovoltaics (ETIP PV) took place on 18 & 19 May 2017, at the BIP House in Brussels.
Key industry leaders, scientists, engineers, and policy makers joined to debate the status and future of "PV Manufacturing in Europe". Over 120 PV specialists from 16 European countries attended the conference.
Dr Marcus Rother, Head of Sales Africa
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Highest quality components and systems, backed by warranty of one of the world’s strongest PV firms
Design team with over twenty experience
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Best practices for Solar and Wind power system case studiesLeonardo ENERGY
Power system impact studies are often the first steps taken towards defining renewable targets. It is important that commonly accepted standard methodologies are applied related to these issues. IEAWIND and IEA PVPS have issued Recommended Practices for Wind/PV Integration Studies to provide researchers, consultants, and system operators with up-to-date guidelines on how to perform renewable power system studies.
The second edition of the report published in 2018, extends recommendations for wind integration studies to also include solar PV and distribution networks, on top of transmission network issues.
Recommendations are based on more than 10 years of work within the International Energy Agency Wind Technology Collaboration Programme (IEA Wind TCP) Task 25: Design and Operation of Power Systems with Large Amounts of Wind Power and the IEA Photovoltaic Power System Programme (PVPS TCP) Task 14: High Penetration of PV Systems in Electricity Grids.
Similar to REACH Solar Consultants - Presentation at Intersolar India 2013 | Learnings from India's 2GW Installations (20)
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LA HUG - Video Testimonials with Chynna Morgan - June 2024Lital Barkan
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https://www.productmanagementtoday.com/frs/26903918/understanding-user-needs-and-satisfying-them
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2. Performance Data
• For this presentation
• Sample of 50 plants
operational for at least
one year in Gujarat
• 28 with c-Si and 22 Thin
Film
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3. This is how the data
tables look like
?
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5. Frequency Distribution CUF Values
16
Highest CUF
21.3%
Lowest CUF
12.2%
14
6
3
2
3
3
2
1
0
12% to 13% 13.1% to 14% 14.1% to 15% 15.1% to 16% 16.1% to 17% 17.1% to 18% 18.1% to 19% 19.1% to 20% 20.1% to 21% Above 21%
The Difference:
Absolute: 9.1% | Factor: 1.75
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6. Frequency Distribution CUF Values
16
14
6
3
2
3
3
2
1
0
12% to 13% 13.1% to 14% 14.1% to 15% 15.1% to 16% 16.1% to 17% 17.1% to 18% 18.1% to 19% 19.1% to 20% 20.1% to 21% Above 21%
Top Performers vs. All Others
94.00%
6%
92.00%
60.00%
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8%
40%
8. No, it is not!
“Nevertheless, the PV systems evaluable per region showed
significant deviations in their respective yields. Although located
in a similar environment, the yield variation in some regions was
up to 20 %. Assessment of the quartiles revealed 75 % of the
plants underperforming compared to the top performing
plants. Another 5 % were included in the group of outliers
due to their overall yield being too low for this study. The
significance test proves that, due to the sufficiently high number
of evaluable PV plants, the statistical results of our study reflect
the actual yields of the PV systems to a high degree.”
- Source: Survey on yield of photovoltaic plants 2012 in Germany
by Meteocontrol (Prof. Dr. Henirk te Heesen et al.
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10. CUF vs. Technology
9
7
Note:
There are 28 c-Si, but
only 22 Thin Film
installations in this
sample!
7
7
5
3
2
1
1
1
1
2
1
1
1
1
0
12% to 13% 13.1% to 14% 14.1% to 15% 15.1% to 16% 16.1% to 17% 17.1% to 18% 18.1% to 19% 19.1% to 20% 20.1% to 21% Above 21%
Thin Film
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c-Si
11. CUF vs. Technology II
12% to 13% 13.1% to 14% 14.1% to 15% 15.1% to 16% 16.1% to 17% 17.1% to 18% 18.1% to 19% 19.1% to 20% 20.1% to 21% Above 21%
Thin Film
Bottom line:
There are very good and not so good
performing plants either with Thin Film
or c-Si!
www.reach-solar.com
c-Si
13. CUF vs. Average Installed Capacity
17.55
15.40
14.59
11.73
11.67
14.14
11.67
10.22
6.67
12% to 13% 13.1% to 14% 14.1% to 15% 15.1% to 16% 16.1% to 17% 17.1% to 18% 18.1% to 19% 19.1% to 20% 20.1% to 21% Above 21%
Average Installed Capacity
Bottom line:
Do larger / smaller plants perform better?
One thing is for sure: The sample of 50
plants is too small to give an answer.
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14. ?
So what can we learn
from this?
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15. A Skeptical Thesis
• We do not have enough information, because
• Generation Data and CUF do not provide the
right or enough insights
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16. ?
Why have we done this
exercise?
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17. Reasons
• #1: To understand better the limitations of CUF and
generation data
• #2: To build awareness that there might be a
problem & that there is room for improvement
• #3: Not specific to India – happens also in Germany
/ Europe so it affects the whole industry
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18. CUF: What goes into the
equation…
• Units generated
• Installed Capacity
• Time (e.g. 1 year)
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CUF
Energy Measured (kWh )
Installed Capacity(kW ) 8760 h
19. CUF: What goes not into
the equation…
• Ambient
Temperature
• Panel Temperature
• Irradiation at Project
Site
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• Grid related aspects
• Availability
• Frequency
20. PR: A Different Approach
• Instead of asking:
What was achieved
without asking
about the frameconditions and
circumstances
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• Ask:
What could have
been achieved
considering all the
frame conditions?
21. Comparison of CUF and PR for a PV System in Germany
(2012)
77.58%
81.54%
78.90%
78.63%
76.00%
75.90%
72.03%
74.42%
76.39%
19%
21%
78.32%
10%
14%
21%
19%
February
March
April
May
June
July
Performance Ratio [%]
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3%
9%
4%
January
70.60%
4%
25%
18%
72.80%
August
CUF [%]
September
October
November December
22. Takeaways
• #1: Great components do not automatically lead to
high performing plants
• #2: Design has a huge impact (but not only
electrical design!)
• #3: CUF is a good tool but will not provide the
complete picture
• #4: PR is also a tool for quality management
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24. Component
Capacity
Nos Installed
Plant
Capacity Lost
Chance of
Detection
1 Panel
250Wp
4000
0.025%
“0”
1 String
5kWp
200
0.5%
Not very likely
1 SCB
50kWp
20
5%
Possible
1 Inverter
500kW
2
50%
Likely
1 Transformer
1000kW
1
100%
Most likely
*1MW plant – not a real application; simplified for illustration
Design for Reliability
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27. Min. Performance and Typical Performance of c-Si Panels vs. Time in Operation
(Aging Process)
100%
98%
96%
94%
92%
90%
88%
86%
84%
82%
80%
0
5
10
Min. Performance
15
20
Typical Performance
Performance of Panels
www.reach-solar.com
25
28. Simplified Output Power vs. Ambient Temperature
120
Standardized Output Power
100
80
60
Temperature
De-Rating
40
20
0
0
10
20
30
40
50
Ambient Temperature
Performance of Inverter
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60
70
29. Is focusing on Panels
and Inverters enough?
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41. Conclusion
• Plant Efficiency
• EPCs and Owners Engineers – educate your clients about
plant efficiency (PR vs. CUF)
• Quality Control
• Install and use a SCADA system to monitor and document
the plant performance
• System Deployment
• Deploy a system – focus on all design aspects (not only
electrical, but also civil)
• Share
• Share your generation and performance data to set a
benchmark
www.reach-solar.com
43. Contact Us
REACH Solar Consulting P Ltd.
S3 Team Business Center
98 V M Street, Mylapore
Chennai 600004
India
c/o CHROSIS UG
Hallerstrasse, 27
74549 Wolpertshausen
Germany
madhavan@reach-solar.com
sebastian@reach-solar.com
www.reach-solar.com