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PV Solar Design & Installation
Consideration for Net metering fixed PV
For low or high voltage grid connected
Prepared by ...
Net Metering Equivalent to Energy Storing
2
A Basic Threshold
• Aluminate shadowing on the Panels
• Sustainable roof structure
• Active consumption
• Electricity boar...
Permits
• IEC’s Conditional license
(Temporary and more the 50KW systems)
• Authorities building permit (more the 50KW)
• ...
Which parameters effect on the producing
• Soiling level and hot spot
• Panel PID phenomenon
• Panel reflection and degrad...
Optional Additions/Upgrade
• Main cable diameter depend on the current and distance
from the main board.
• Main board, in ...
Initial Design milestones
• Technical survey
• Roofs measurement
• Pre-design, sketches and imagining as option
• Build an...
PV array deployment
8
Simulation
• Simulation helps to indicate the system
performance and predict the production
• Simulation shows the analyzi...
System Losses and shadowing
10
Single Line Diagram
11
Generator changeover
Detail design and specifications
• DC string , array topographic
• Contracture design
• Panels and inverter manufacture ch...
Protections and Safety
• PV system is not a source of hazard radiation
• PV system committed to conform by IEC low
and Ele...
Main Project Milestones
• First step for project rating
• Map the final PV affective area
• Opening request in IEC (deposi...
Monitoring
• How to know how your system is good or bad?
• Monitoring system present the producing data
• The precise indi...
Preparing for installation
• Check list
• Visual inspection
• Measuring and mapping
• Preparing non penetration foundation...
Installation process
• Construction
Construction is preliminary step.
Construction anchoring and foundation
Building the i...
Installation non conventional construction and frameless
made by SolaticsTM
 Lightweight
– In some configurations as low ...
Installation process (Continue)
• Panels classification and installation
• Cable DC and AC tunnels and wiring
• DC and AC ...
IEC test, Metering and grid connection
• IEC final inspection for the PV plant
• Producing metering monitor by IEC and use...
Actual Improvements in PV
• More PV panels but lower panel tilt
• Panels efficiency incising
• Better system optimization
...
100KW Project Time table
22
Thank you
23
Link to Green In Grid Website
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PV solar Design and Installtion

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PV solar Design and Installtion

  1. 1. PV Solar Design & Installation Consideration for Net metering fixed PV For low or high voltage grid connected Prepared by Eli Israeli, Green in Grid solar, May 2015 1
  2. 2. Net Metering Equivalent to Energy Storing 2
  3. 3. A Basic Threshold • Aluminate shadowing on the Panels • Sustainable roof structure • Active consumption • Electricity board and cables infrastructure • Registries for IEC’s available quota 3
  4. 4. Permits • IEC’s Conditional license (Temporary and more the 50KW systems) • Authorities building permit (more the 50KW) • Constructor and Electrical Engineer permit • Fire fitter requisite and permit • IEC’s permanent license for production 4
  5. 5. Which parameters effect on the producing • Soiling level and hot spot • Panel PID phenomenon • Panel reflection and degradation • Mismatch between the panels • Inverter efficiency by load rate • Ambient Temperature Air ventilation • IEC grid quality such as Cos Ƥ (PF), different phase voltage, harmonics, spicks and Etc. 5
  6. 6. Optional Additions/Upgrade • Main cable diameter depend on the current and distance from the main board. • Main board, in case nan IEC standard • Lightning rods protection connect to GND • (In specific areas) • Top-roof upgrade for Asbestos, sealing or any obstacle effect the PV array • Roof Construction Strengthening in case of light roof no compliable for PV panel + constriction weight and wind load (according to the standard) • PV plant is not an alternative of Generator. In case GR connected, PV switch-off automatically 6
  7. 7. Initial Design milestones • Technical survey • Roofs measurement • Pre-design, sketches and imagining as option • Build an ideal place for Inverters, switches, DC & AC boards and switchgear (normally indoor) • Poisoning deployment PV layout • Simulation analyzing and output power • Structure plan for the PV array and the inverters • Detail plans DC and AC including SLD 7
  8. 8. PV array deployment 8
  9. 9. Simulation • Simulation helps to indicate the system performance and predict the production • Simulation shows the analyzing and using base for system optimization • PVsyst software in being used by the most of the designers. • Bankability (confirmed by the bank for credit) 9
  10. 10. System Losses and shadowing 10
  11. 11. Single Line Diagram 11 Generator changeover
  12. 12. Detail design and specifications • DC string , array topographic • Contracture design • Panels and inverter manufacture choosing • DC & AC cable infrastructure routing plan • DC and AC cable distances and loss • Grounding concept and connections • Electrical protection calculation and load flow • One line diagram module to the main board 12
  13. 13. Protections and Safety • PV system is not a source of hazard radiation • PV system committed to conform by IEC low and Electrical standard • System protection by Switch, relays overvoltage and other devices • Fire fitter standard • Safety element install in the plant area 13
  14. 14. Main Project Milestones • First step for project rating • Map the final PV affective area • Opening request in IEC (deposit payment) • Conditional permit receiving (Above than 50KW) • Foundation and infrastructure preparation (Construction installation and cable channels) • Receiving the equipment and panels installation • Electrical concretions Inverters installation and setup • IEC inspection and reject action • Fine tuning , configuration, production metering installation • Electrification for the IEC grid 14
  15. 15. Monitoring • How to know how your system is good or bad? • Monitoring system present the producing data • The precise indication for the system testing call PR, the performance ratio, Normally a good PR is above 78% • PR = Energy out (actual) / Energy in (reference) • Energy in = measure by the Metrologic sensors • Energy out = measure by the electricity output • Receiving a management reports • Receiving alerts (Inverter fail, difference..) 15
  16. 16. Preparing for installation • Check list • Visual inspection • Measuring and mapping • Preparing non penetration foundation base for the construction • Prepare functional and safe place for the solar equipment (Panels, inverters and boards) • Water filter infrastruction on the roof for panel washing as possible 16
  17. 17. Installation process • Construction Construction is preliminary step. Construction anchoring and foundation Building the internal stand The classic construction made from Aluminum 17
  18. 18. Installation non conventional construction and frameless made by SolaticsTM  Lightweight – In some configurations as low as 2.5kg/m2  Durable design and manufacturing – Providing industry leading long-term reliability  Novel attachment system – No need for racking & brackets – Lower BOS cost (balance of system) – Low installation costs - Faster and easier installation  PID – PID free design – Better/cheaper invertors possible  Highly versatile, beautiful design – Ultra thin – from 4mm – Easy integration into structures 18
  19. 19. Installation process (Continue) • Panels classification and installation • Cable DC and AC tunnels and wiring • DC and AC protection devices • Inverter connection • Signage and labeling for item identification An example below 19
  20. 20. IEC test, Metering and grid connection • IEC final inspection for the PV plant • Producing metering monitor by IEC and use for the annual credit offsetting • PUA operation permit • Electrification and power producing • O&M for the next 25 years 20
  21. 21. Actual Improvements in PV • More PV panels but lower panel tilt • Panels efficiency incising • Better system optimization • Movement toward increased DC voltage • Micro-inverters and Power sharing • Panel and strings losses improvement • Energy Storing 21
  22. 22. 100KW Project Time table 22
  23. 23. Thank you 23 Link to Green In Grid Website

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