Optimizing Operation & Maintenance
Practices for Solar Power Plant
SPAIN66MW	ITALY122MW	
JAPAN45MW	
UK32MW	
INDIA31MW	 FRANCE9MW	
Mexico	City	
MEXICO	
Soria	–	Global	HQ	
SPAIN	
Lima	
PERU	
Quito	
ECUADOR	
Paris	
FRANCE	
Cape	Town	
SOUTH	AFRICA	
London	
UNITED	KINGDOM	
Rome	
ITALY	
Msida	
MALTA	
Abu	Dhabi	
UNITED	EMIRATES	
Ahmedabad	
INDIA	
Tokyo	
JAPAN	
SanTago	de	Chile	
Chile
30 MW already under operation in India
300+ MW under O&M negotiation
Following ISO9001 / ISO14001 procedures globally
Shareholders
Solarig: 300+ MW of Global O&M Portfolio
Gensol: 2 GW+ Technical Advisory Portfolio
Eras of Indian Solar
Indian Solar History can be broadly
divided into 5 ERAs
2009 – 2011
Bold Risk Takers
2011 – 2012
Opportunists
2012 – 2013
Penny Pinchers
2014 – 2015
Mammoths
2015 – onwards
Operators
What is O&M for Solar?
Preventive Maintenance
þ
Correctve Maintenance
≈
Proactive Maintenance
ý
Preventive Maintenance
What is it? -	Works	defini>on	and	scheduling	plan	
Objectives -	Minimize	downTmes	
	-	Enlarge	lifeTme	of	the	equipment	
	-	Minimize	Risks	(H&S,	Security,	etc)	
	-	DetecTng	faults	for	claims	
When? -	In	low	irradiaTon	periods	
	-	According	to	meteorological	condiTons	
Needs -	Schedule	Plan	&	Trained	staff	
	-	Tools	and	auxiliary	machinery	
	-	Management	of	work	orders	/	Spare	Parts	
	-	IT	Pla`orm
Corrective Maintenance
What is it? -	ResoluTon	of	incidences	
Objectives -	Minimize	downTmes	
	-	Increase	Availability	&	Performance	Ra>o	
	
Factors -	Incidences	Protocols	incorporated	
	-	Spare	Parts	available	
	-	Trained		team	
	-	Warranty	Manufactures	
Needs -	Monitoring	System	
	-	Tools	and	auxiliary	machinery.	
	-	Management	of	work	orders/Spare	Parts		
	-	IT	Pla`orm
Proactive maintenance
What is? -	Analysis	for	detecTng	underperformances	
Objectives -	Avoid	hidden	defaults	&	losses		
	-	Enlarge	lifeTme	of	the	equipment	
	-	Minimizes	risks	
	-	ProducTon	increase	
How? -	Due	Diligences	
	-	Analysis	of	electrical	parameters		
	-	Trends	evaluaTons	&	Comparisons	
Needs -	Specialized	Tools	&	IT	management	
	-	IV,	Analyzer	PV,	Thermographic	Camera…	
	-	Specialized	Team
Factors Impacting Production Losses
What really contributes to the loss of
generation and how much?
Design & Construction O&M Environmental Factors
•  Near	shadings:	irradiance	loss	
•  IAM	factor	
•  Shadings:	Electrical	loss	acc.	to		string	
•  LID-Light	Induced	DegradaTon	
•  Module	array	mismatch	loss	
•  Ohmnic	wiring	loss	
•  Inverter	loss	during	operaTon	
(efficiency)	
•  Inverter	loss	over	nominal	inv.	power	
•  Inverter	loss	due	to	power	threshold	
•  Inverter	loss	over	nominal	inv.	voltage	
•  Inverter	loss	due	to	voltage	threshold	
•  AC	ohmnic	loss	
•  External	transfo	loss	
•  Soiling	loss	factor	
•  System	
unavailability	
•  Near	shadings:	irradiance	loss	
•  IAM	factor	
•  PV	loss	due	to	irradiance	level	
•  PV	loss	due	to	temperature	
•  Shadings:	Electrical	loss	acc.	to		
string	
•  LID-Light	Induced	DegradaTon	
Factors of the Production Losses
0%	
10%	
20%	
30%	
40%	
Suppliers	&	
Manufactures	
Design	&	
EPC	
External	
Factors	
CommunicaTon	
Factors	
O&M	 Others	
%	Energy	loss	 %	Events	
% Outages/events vs Energy losses
Source: Solarig
0%	
10%	
20%	
30%	
40%	
Suppliers	&	
Manufactures	
Design	&	
EPC	
External	
Factors	
CommunicaTon	
Factors	
O&M	 Others	
%	Energy	loss	 %	Events	
Considering an expert O&M Company	
Source: Solarig	
% Outages/events vs Energy losses
0%	
10%	
20%	
30%	
40%	
50%	
Inverters	 DC	Side	 External	
Factors	
Grid	 Meter	 Transformer	 Others	
%	Energy	loss	 %	Events	
Analysis corrective incidence
Source: Solarig
Lessons Learnt
Lessons Learnt over last 10 years of
Global O&M Experience
20	©	2015	Solarig	Holding	
EOL IS
COMING
Failures	Level	
Set up
Failures	
Common
Failures	
Wastage
Failures	
Basic	O&M	
With	a	professional	
O&M	company	
COD	 20	years	PPA	Term	(years)
21	©	2015	Solarig	Holding	
Cillamayor	
PALENCIA	
Alfaro	
LA	RIOJA	
Ledaña	
CUENCA	
Matapozuelos	
VALLADOLID	
Arroyomolinos	
MADRID	
Soria	-	HQ	
SORIA	
Almazan		
Tozalmoro	
SORIA	
Trujillo	
CÁCERES	
Abanilla	
MURCIA	
SCALE COUNTS
Perugia		
UMBRIA	
Arezzo	
TOSCANA	
Cuneo	
PIEMONTE	
Roma	-	Italia	HQ		
LAZIO	
L’Aquila	
ABRUZZO	
Viterbo	
LAZIO	
LaTna	
LAZIO	
Ancona	
MARCHE	
Terni	
UMBRIA	
Isernia	
MOLISE	
Foggia	
PUGLIA	
Brindisi	
PUGLIA	
Lecce	
PUGLIA	
Vibo	Valencia	
CALABRIA	Agrigento	
SICILIA	
Siracusa	
SICILIA	
Potenza	
BASILIC
ATA
PV Plant PV Portfolio
A PV PORTFOLIO NEEDS A PROFFESIONAL COMPANY
External factors
-	Claims	Force 		
-	Suppliers	Force	
-	Contractors	efficiency	
Internal factors
-	Spare	Parts	Management	
-	Trained	Technical	Personnel		
-	Staff	costs	repercussion	
-	Sophis>cated	Tools	investment	
-	IT	PlaUorm	(CMMS)	
Results
• Saving	Costs	
• Shorter	Response	
Time	
• Higher	Performance	
• Comparable	PR´s		
• Major	Profits	for	Client
23	©	2015	Solarig	Holding	
02 | O&M – Upgrading Plans
ACTING
LOCALLY
24	©	2015	Solarig	Holding	
RESPONSIBLE
BACKTOBACK
25	©	2015	Solarig	Holding	
EPC vs O&M
26	©	2015	Solarig	Holding	
KEY
PLAYERS
FIELD	SERVICE	
BACK	OFFICE	
IT	PLATFORM
A professional Company
Technical
Reports
Work orders
Management
KPI
Control
Inventory
Management
Assets
Management
Insurance
Management
Corrective
Maintenance
Preventive
Maintenance
Monitoring
System
CMMS
Solarig Gensol Utilities Pvt. Ltd
108, Pinnacle Business Park
Opp. Royal Arcade, Prahladnagar
Ahmedabad – 380015, Gujarat, India
Tel +91 79 40068235
Email: puneetjaggi@solariggensol.com
M: +91 99980 25820

Optimizing Operation & Maintenance Practices for Solar Power Plant