owner’s / banker's engineering services – a critical part
TRANSCRIPT
Slide 1SERIS is a research institute at the National University of
Singapore (NUS). SERIS is sponsored by the National University of
Singapore (NUS) and Singapore’s National Research Foundation (NRF)
through the Singapore Economic Development Board (EDB).
1
Owner’s / Banker's Engineering Services – A Critical Part of Quality Assurance TAN Congyi Project Manager
Solar Energy Research Institute of Singapore (SERIS) National University of Singapore (NUS)
SERIS INDUSTRY DAY on “PV Quality and Asset Management” NUS, University Hall 14 August 2017
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
2
The case for quality assurance The PV industry has been growing at a stellar rate Market is highly competitive, and cost is often a major driving
factor How can we ensure that PV systems remain safe, and investors
get their money’s worth?
Source: HDB rooftops,
3
PV systems have almost no moving parts, do not operate at high temperatures and have no dangerous emissions
BUT, there are two key areas to watch out for, in order to have a PV system that can last 25+ years: Safety (mechanical, electrical) System performance
What are the concerns? Role of Owner’s / Banker’s Engineer
Source: Google Images
4
Concern #1: M&E safety Most failures are electrical in nature
Messy wiring Using improper protection devices
Case studies show that catastrophic failures in solar PV systems are primarily caused by: Inadequate/wrong system and fault protection design Sloppy workmanship during installation
5SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
Concern #2: System performance Example from analytical monitoring of SERIS in Singapore
82.6 82.2 81.9 81.7 79.9 79.8 73.5 70.0 69.5
62.5 58.1
A B C D E F G H I J K 0
10
20
30
40
50
60
70
80
90
100
A well-built system should perform according to design specifications
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
6
Case studies – Faults identified (I) Loose mounting mixtures
Mounting problems can stay undetected for a long time, until environmental conditions force it to manifest Especially risky for roof-mounted PV systems
No quick test to uncover it, only meticulous inspection
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
7
Case studies – Faults identified (II) Electrical hazards
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
8
Case studies – Faults identified (III) Incorrect use of components
Common faults: wrong polarity, DC components used in AC circuit or vice versa
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
9
Some insidious problems can lay dormant until checks uncover them
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
10
Commissioning formalizes quality control of PV systems
Ensures that systems are safe and performing well Guards against fires, electrical harm arising from poorly
constructed systems
Dollars and effort are not wasted on non-performing or underperforming systems
Encourages EPCs and system integrators to be responsible for their installations
Gives system owners a peace of mind during the transfer of ownership
How can we mitigate the risks? System verification is critical
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
11
For grid-connected PV systems: IEC 62446:2016 (SS601: 2014 in Singapore) Photovoltaic (PV) systems - Requirements for testing, documentation and maintenance
For off-grid PV systems: IEC 62124:2004 Photovoltaic (PV) stand alone systems - Design verification
Relevant standards PV system commissioning
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
12
IEC 61683:1999 Photovoltaic systems - Power conditioners (Procedure for measuring efficiency)
IEC 62109:2010 Safety of power converters for use in photovoltaic power systems
IEC 62116:2014 Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures
IEC 62894:2014 Photovoltaic inverters - Data sheet and name plate
Other useful IEC standards Inverters
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
13
Low-voltage installations shall comply with:
IEC 60227:2007 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V
IEC 60228:2004 Conductors of insulated cables
High-voltage installations shall comply with:
IEC 60502:2014 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)
IEC 60840:2011 Power cables with extruded insulation and their accessories rated voltages above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV)
Other useful IEC standards Power cables and accessories
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
14
IEC 60076:2011 Power transformers
IEC 62271:2016 High-voltage switchgear and control gear
IEC 61936-1:2010 Power installations exceeding 1 kV a.c. - Part 1: Common rules
Other useful IEC standards Power cables and accessories
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
15
IEC 62548:2016 Photovoltaic (PV) arrays - Design requirements
IEC 62093:2005, Balance-of-system components for photovoltaic systems - Design qualification natural environments
IEC 62093:2005 Balance-of-system components for photovoltaic systems - Design qualification natural environments
IEC 60364:2005 Low-voltage electrical installations
Other useful IEC standards Electrical components
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
16
Verification that the system has been installed according to the contract documents, manufacturer’s recommendations and standards
A proper record of equipment list and systems performance
Verification that the installing company performed adequate operation checkout
Confirmation that the operations and maintenance (O&M) documentation left on-site is complete
Adequate training for the owner’s operating personnel
Testing & Commissioning Expected outcomes
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
17
Extensive experience with Owner’s Engineering services and T&C (more than 50 MWp implemented)
Broad range of exposure – from HDB blocks to MW-scale PV installations (roof-top, ground-mounted, floating)
Access to support from domain experts at NUS
How can SERIS be helpful here? Our capabilities at a glance
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
18
Backed by state-of-the-art equipment that goes beyond the minimum standards prescribed I-V curve tracing, Infra-red Imaging, Daylight EL and PL
capabilities can aid in troubleshooting faulty or underperforming systems
How can SERIS be helpful here? Our capabilities at a glance
Irr = 712.2 W/m2
Daylight ELIV curve analysis
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
19
Other services by SERIS Subject matter experts can conduct customer-specific training on
various quality assurance topics for solar PV systems
O&M training can also be provided
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
20
public opinion currently enjoyed by solar PV
Proper system verification plays a critical role in system ownership and risk mitigation
Faults that go unrectified not only impact system performance, but also safety
Owner’s/banker’s engineering services are useful to protect a client’s interest, and to fill in gaps in expertise for a project
Don’t chance it!
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
21
[email protected]
How can SERIS be helpful here? Our capabilities at a glance
Other services by SERIS
1
Owner’s / Banker's Engineering Services – A Critical Part of Quality Assurance TAN Congyi Project Manager
Solar Energy Research Institute of Singapore (SERIS) National University of Singapore (NUS)
SERIS INDUSTRY DAY on “PV Quality and Asset Management” NUS, University Hall 14 August 2017
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
2
The case for quality assurance The PV industry has been growing at a stellar rate Market is highly competitive, and cost is often a major driving
factor How can we ensure that PV systems remain safe, and investors
get their money’s worth?
Source: HDB rooftops,
3
PV systems have almost no moving parts, do not operate at high temperatures and have no dangerous emissions
BUT, there are two key areas to watch out for, in order to have a PV system that can last 25+ years: Safety (mechanical, electrical) System performance
What are the concerns? Role of Owner’s / Banker’s Engineer
Source: Google Images
4
Concern #1: M&E safety Most failures are electrical in nature
Messy wiring Using improper protection devices
Case studies show that catastrophic failures in solar PV systems are primarily caused by: Inadequate/wrong system and fault protection design Sloppy workmanship during installation
5SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
Concern #2: System performance Example from analytical monitoring of SERIS in Singapore
82.6 82.2 81.9 81.7 79.9 79.8 73.5 70.0 69.5
62.5 58.1
A B C D E F G H I J K 0
10
20
30
40
50
60
70
80
90
100
A well-built system should perform according to design specifications
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
6
Case studies – Faults identified (I) Loose mounting mixtures
Mounting problems can stay undetected for a long time, until environmental conditions force it to manifest Especially risky for roof-mounted PV systems
No quick test to uncover it, only meticulous inspection
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
7
Case studies – Faults identified (II) Electrical hazards
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
8
Case studies – Faults identified (III) Incorrect use of components
Common faults: wrong polarity, DC components used in AC circuit or vice versa
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
9
Some insidious problems can lay dormant until checks uncover them
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
10
Commissioning formalizes quality control of PV systems
Ensures that systems are safe and performing well Guards against fires, electrical harm arising from poorly
constructed systems
Dollars and effort are not wasted on non-performing or underperforming systems
Encourages EPCs and system integrators to be responsible for their installations
Gives system owners a peace of mind during the transfer of ownership
How can we mitigate the risks? System verification is critical
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
11
For grid-connected PV systems: IEC 62446:2016 (SS601: 2014 in Singapore) Photovoltaic (PV) systems - Requirements for testing, documentation and maintenance
For off-grid PV systems: IEC 62124:2004 Photovoltaic (PV) stand alone systems - Design verification
Relevant standards PV system commissioning
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
12
IEC 61683:1999 Photovoltaic systems - Power conditioners (Procedure for measuring efficiency)
IEC 62109:2010 Safety of power converters for use in photovoltaic power systems
IEC 62116:2014 Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures
IEC 62894:2014 Photovoltaic inverters - Data sheet and name plate
Other useful IEC standards Inverters
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
13
Low-voltage installations shall comply with:
IEC 60227:2007 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V
IEC 60228:2004 Conductors of insulated cables
High-voltage installations shall comply with:
IEC 60502:2014 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)
IEC 60840:2011 Power cables with extruded insulation and their accessories rated voltages above 30 kV (Um = 36 kV) up to 150 kV (Um = 170 kV)
Other useful IEC standards Power cables and accessories
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
14
IEC 60076:2011 Power transformers
IEC 62271:2016 High-voltage switchgear and control gear
IEC 61936-1:2010 Power installations exceeding 1 kV a.c. - Part 1: Common rules
Other useful IEC standards Power cables and accessories
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
15
IEC 62548:2016 Photovoltaic (PV) arrays - Design requirements
IEC 62093:2005, Balance-of-system components for photovoltaic systems - Design qualification natural environments
IEC 62093:2005 Balance-of-system components for photovoltaic systems - Design qualification natural environments
IEC 60364:2005 Low-voltage electrical installations
Other useful IEC standards Electrical components
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
16
Verification that the system has been installed according to the contract documents, manufacturer’s recommendations and standards
A proper record of equipment list and systems performance
Verification that the installing company performed adequate operation checkout
Confirmation that the operations and maintenance (O&M) documentation left on-site is complete
Adequate training for the owner’s operating personnel
Testing & Commissioning Expected outcomes
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
17
Extensive experience with Owner’s Engineering services and T&C (more than 50 MWp implemented)
Broad range of exposure – from HDB blocks to MW-scale PV installations (roof-top, ground-mounted, floating)
Access to support from domain experts at NUS
How can SERIS be helpful here? Our capabilities at a glance
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
18
Backed by state-of-the-art equipment that goes beyond the minimum standards prescribed I-V curve tracing, Infra-red Imaging, Daylight EL and PL
capabilities can aid in troubleshooting faulty or underperforming systems
How can SERIS be helpful here? Our capabilities at a glance
Irr = 712.2 W/m2
Daylight ELIV curve analysis
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
19
Other services by SERIS Subject matter experts can conduct customer-specific training on
various quality assurance topics for solar PV systems
O&M training can also be provided
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
20
public opinion currently enjoyed by solar PV
Proper system verification plays a critical role in system ownership and risk mitigation
Faults that go unrectified not only impact system performance, but also safety
Owner’s/banker’s engineering services are useful to protect a client’s interest, and to fill in gaps in expertise for a project
Don’t chance it!
SERIS is a research institute at the National University of Singapore (NUS). SERIS is sponsored by the National University of Singapore (NUS) and Singapore’s National Research Foundation (NRF) through the Singapore Economic Development Board (EDB).
21
[email protected]
How can SERIS be helpful here? Our capabilities at a glance
Other services by SERIS