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<languages />
 
<translate>
 
<translate>
 
<!--T:1-->
 
<!--T:1-->
−
<strong>Welcome to The Open Source Solar Project (OSSP)</strong>
+
<strong>Welcome to the Open Source Solar Project</strong>
  
 
<!--T:2-->
 
<!--T:2-->
−
The sun is the ultimate open energy source and OSSP aims to help everyone harness it. Solar PV in the developing world has been growing at an exponential rate and has managed to provide energy access to millions of people, unfortunately adequate standards and appropriate training programs have not followed suit. Many equipment vendors and installers have little to no training nor are they subject to any form of regulation and end users often have little understanding of the technology. This has lead to the proliferation of many improperly designed PV systems that not only lead to poor end-user experiences but also represent a safety risk. This website is an effort to improve small-scale battery-based (SSBB) solar PV system design, safety, and user experiences in these areas by providing appropriate information, resources and tools on the universal, basic aspects of off-grid system design and installation in these contexts. OSSP hopes to serve as both a direct resource in these areas and as a readily-adaptable base for the development of low-cost training materials and programs that are tailored to the needs and standards of a particular area. Please reach out to alex@opensourcesolar.org if you are interested in collaborating, contributing or need assistance creating training materials.
+
The mission of Open Source Solar Project is to share information in various langauges about the design and installation of off-grid photovoltaic (PV) systems to lead to better performing, safer systems in the developing world. Please reach out to alex@opensourcesolar.org if you are interested in collaborating, have found mistakes, would like to contribute or need assistance creating training materials.
  
 
<!--T:3-->
 
<!--T:3-->
−
Aims of OSSP:
+
Be advised that design, installation, and maintenance work should only be performed by qualified individuals in accordance with local codes and laws. There is no guarantee that the information provided on this website is accurate or complete - use it at your own risk. It is intended to serve as an educational and reference resource - appropriate hands on training is required in order to safely work with electricity and PV systems. See [[Special:MyLanguage/Training providers|Training providers]] for a list of recommended training providers.
−
*Provide an appropriate level of detail for each topic in a way that is practical and accessible for an audience with a varying level of technology literacy.
 
−
*Present universal concepts in a way that is universal. Information or resources that are location specific should be added to a country page.
 
−
*Utilize well-designed graphics that include minimal text to enable easy adapatation and translation using captions.
 
  
−
<!--T:4-->
 
 
Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.
 
Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.
 +
==About OSSP== <!--T:29-->
  
−
==Basics==
+
<!--T:30-->
−
*[[What is an off-grid PV system?|What is an off-grid (stand-alone) PV system?]]<br />
+
*[[Special:MyLanguage/About OSSP|About OSSP]]<br />
−
*[[Types of PV systems|Types of PV systems]]<br />
 
−
*[[Basic stand-alone PV system components|Basic stand-alone PV system components]]<br />
 
−
*[[Electricity and energy|Electricity and energy]]<br />
 
−
*[[Types of electricity|Types of electricity]]<br />
 
−
*[[Voltage and frequency by country|Voltage and frequency by country]]<br />
 
−
*[[Power flow between components|Power flow between components]]<br />
 
−
*[[Series and parallel|Series and parallel]]<br />
 
−
*[[Electrical codes|Electrical codes]]<br />
 
−
*[[Electrical safety|Electrical safety]]<br />
 
−
*[[Multimeters|Multimeters]]<br />
 
  
−
==Components==
+
==Basic concepts== <!--T:5-->
 +
*[[Special:MyLanguage/What is an off-grid PV system?|What is an off-grid (stand-alone) PV system?]]<br />
 +
*[[Special:MyLanguage/PV system types|PV system types]]<br />
 +
*[[Special:MyLanguage/Basic stand-alone PV system components|Basic stand-alone PV system components]]<br />
 +
*[[Special:MyLanguage/Electricity and energy|Electricity and energy]]<br />
 +
*[[Special:MyLanguage/Electricity types|Electricity types]]<br />
 +
*[[Special:MyLanguage/Voltage and frequency by country|Voltage and frequency by country]]<br />
 +
*[[Special:MyLanguage/Power flow between components|Power flow between components]]<br />
 +
*[[Special:MyLanguage/Series and parallel connections|Series and parallel connections]]<br />
 +
*[[Special:MyLanguage/Electrical codes|Electrical codes]]<br />
 +
*[[Special:MyLanguage/Electrical safety|Electrical safety]]<br />
 +
*[[Special:MyLanguage/Multimeters|Multimeters]]<br />
 +
 
 +
==System components== <!--T:8-->
 
====Certifications and ratings====
 
====Certifications and ratings====
−
*[[Equipment certifications|Equipment certifications]]<br />
+
*[[Special:MyLanguage/Equipment certification|Equipment certification]]<br />
−
*[[Weather ratings|Weather ratings]]<br />
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*[[Special:MyLanguage/Weather rating|Weather rating]]<br />
−
====PV source====
+
 
−
*[[PV module|PV module (PV source, solar panel)]]<br />
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====Photovoltaic (PV) source==== <!--T:9-->
−
*[[Insolation|Insolation (peak sun hours)]]<br />
+
*[[Special:MyLanguage/PV module|PV module (PV source, solar panel)]]<br />
−
*[[Tilt and orientation|Tilt and orientation]]<br />
+
*[[Special:MyLanguage/Insolation|Insolation (peak sun hours)]]<br />
−
*[[Shading|Shading]]<br />
+
*[[Special:MyLanguage/Tilt and azimuth|Tilt and azimuth]]<br />
−
*[[Module connectors|Module connectors]]<br />
+
*[[Special:MyLanguage/Shading|Shading]]<br />
−
*[[Combiner box|Combiner box]]<br />
+
*[[Special:MyLanguage/Module connectors|Module connectors]]<br />
 +
*[[Special:MyLanguage/Combiner box|Combiner box]]<br />
 
====Energy storage====
 
====Energy storage====
−
*[[Energy storage|Energy storage]]<br />
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*[[Special:MyLanguage/Energy storage|Energy storage]]<br />
−
*[[Lead acid batteries|Lead acid batteries]]<br />
+
*[[Special:MyLanguage/Lead acid battery|Lead acid battery]]<br />
−
*[[Shunt|Shunt]]<br />
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*[[Special:MyLanguage/Lithium-ion battery|Lithium-ion battery]]<br />
−
====Charge controller====
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*[[Special:MyLanguage/Shunt|Shunt]]<br />
−
*[[Charge controller|Charge controller]]<br />
+
 
 +
====Charge controller==== <!--T:10-->
 +
*[[Special:MyLanguage/Charge controller|Charge controller]]<br />
 
====Inverter====
 
====Inverter====
−
*[[Inverter|Inverter]]<br />
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*[[Special:MyLanguage/Inverter|Inverter]]<br />
 
====Power distribution====
 
====Power distribution====
−
*[[Distribution panel|Distribution panel]]<br />
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*[[Special:MyLanguage/Distribution panel|Distribution panel]]<br />
−
*[[DIN rail|DIN rail]]<br />
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*[[Special:MyLanguage/DIN rail|DIN rail]]<br />
−
*[[Busbars|Busbars]]<br />
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*[[Special:MyLanguage/Busbar|Busbar]]<br />
−
*[[Terminals|Terminals]]<br />
+
*[[Special:MyLanguage/Wire terminal|Wire terminal]]<br />
−
====Mounting system====
+
*[[Special:MyLanguage/Twist-on wire connector|Twist-on wire connector (wire nut, marrette)]]<br />
−
*[[Mounting system|Mounting system]]<br />
+
*[[Special:MyLanguage/Switch|Switch]]<br />
−
====Conductors====
+
*[[Special:MyLanguage/Outlet|Outlet]]<br />
−
*[[Types of conductors|Types of conductors]]<br />
+
 
−
*[[Conductor size|Conductor size]]<br />
+
====Mounting system==== <!--T:11-->
−
*[[Wire color|Wire color]]<br />
+
*[[Special:MyLanguage/Mounting system types|Mounting system types]]<br />
 +
 
 +
====Conductors (wires, cables)==== <!--T:28-->
 +
*[[Special:MyLanguage/Conductor types|Conductor types]]<br />
 +
*[[Special:MyLanguage/Conductor size|Conductor size]]<br />
 +
*[[Special:MyLanguage/Insulation color|Insulation color]]<br />
  
−
====Physical conductor protection====
+
====Physical conductor protection==== <!--T:12-->
−
*[[Conduit|Conduit]]<br />
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*[[Special:MyLanguage/Conduit|Conduit]]<br />
−
*[[Junction box|Junction box]]<br />
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*[[Special:MyLanguage/Junction box|Junction box]]<br />
 
====Protection devices and disconnects====
 
====Protection devices and disconnects====
−
*[[Overcurrent protection device|Overcurrent protection device (OCPD)]]<br />
+
*[[Special:MyLanguage/Overcurrent protection device|Overcurrent protection device (OCPD)]]<br />
−
*[[Disconnects|Disconnects]]<br />
+
*[[Special:MyLanguage/Disconnects|Disconnects]]<br />
−
*[[Residual current device|Residual current device (RCD or GFCI)]]<br />
+
*[[Special:MyLanguage/Residual current device|Residual current device (RCD or GFCI)]]<br />
−
*[[Ground fault protection device|Ground fault protection device (GFPD)]]<br />
+
*[[Special:MyLanguage/Ground fault protection device|Ground fault protection device (GFPD)]]<br />
 
====Grounding====
 
====Grounding====
−
*[[Grounding system|Grounding system]]<br />
+
*[[Special:MyLanguage/Grounding system|Grounding system]]<br />
 +
 
 +
====Loads (lighting and appliances)==== <!--T:13-->
 +
*[[Special:MyLanguage/Lighting|Lighting]]<br />
 +
*[[Special:MyLanguage/Energy efficient loads|Energy efficient loads]]<br />
 +
*[[Special:MyLanguage/Low voltage disconnect|Low voltage disconnect]]<br />
 +
*[[Special:MyLanguage/DC-DC converter|DC-DC converter]]<br />
 +
 
 +
==System design== <!--T:14-->
 +
===Design tools===
 +
*[[Special:MyLanguage/OSSP stand-alone system design tool|OSSP stand-alone system design tool]]
 +
 
 +
===Background=== <!--T:15-->
 +
*[[Special:MyLanguage/Design process overview|Design process overview]]<br />
 +
*[[Special:MyLanguage/Stand-alone system configurations|Stand-alone system configurations]]<br />
 +
*[[Special:MyLanguage/DC system voltage|DC system voltage]]<br />
 +
*[[Special:MyLanguage/Voltage drop|Voltage drop]]<br />
 +
*[[Special:MyLanguage/Surge loads|Surge loads]]<br />
 +
*[[Special:MyLanguage/Power factor|Power factor]]<br />
 +
*[[Special:MyLanguage/Duty cycle|Duty cycle]]<br/>
  
−
====Loads (lighting and appliances)====
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===Site evaluation=== <!--T:16-->
−
*[[Lighting|Lighting]]<br />
+
*[[Special:MyLanguage/Site evaluation process overview|Site evaluation process overview]]<br />
−
*[[Energy efficient loads|Energy efficient loads]]<br />
+
====Simplified design process====
−
*[[Low voltage disconnect|Low voltage disconnect]]<br />
+
*[[Special:MyLanguage/Simplified physical evaluation|Simplified physical evaluation]]<br />
−
*[[DC-DC converter|DC-DC converter]]<br />
+
*[[Special:MyLanguage/Simplified load evaluation|Simplified load evaluation]]<br />
 +
*[[Special:MyLanguage/Simplified weather and solar resource evaluation|Simplified weather and solar resource evaluation]]<br />
 +
====Detailed design process====
 +
*[[Special:MyLanguage/Load evaluation|Load evaluation]]<br />
 +
*[[Special:MyLanguage/Physical evaluation|Physical evaluation]]<br />
 +
*[[Special:MyLanguage/Weather and solar resource evaluation|Weather and solar resource evaluation]]<br />
 +
*[[Special:MyLanguage/Load and solar resource comparison|Load and solar resource comparison]]<br />
  
−
==System design - simplified==
+
===Design parameters=== <!--T:17-->
 +
====Simplified design process====
 +
*All design parameters are incorporated into the other simplified design process pages.
 +
====Detailed design process====
 +
*[[Special:MyLanguage/Design parameter overview|Design parameter overview]]<br />
 +
*[[Special:MyLanguage/Irradiance safety parameter|Irradiance safety parameter]]<br />
 +
*[[Special:MyLanguage/Continuous duty safety parameter|Continous duty safety parameter]]<br />
 +
*[[Special:MyLanguage/Low voltage disconnect parameter|Low voltage disconnect parameter]]<br />
  
−
==System design - detailed==
+
===Energy storage sizing and selection=== <!--T:18-->
−
====Background====
+
====Simplified design process====
−
*[[Stand-alone system configurations|Stand-alone system configurations]]<br />
+
*[[Special:MyLanguage/Simplified energy storage sizing and selection|Simplified energy storage sizing and selection]]<br />
−
*[[Overview of the design process|Overview of the design process]]<br />
+
====Detailed design process====
−
*[[Voltage drop|Voltage drop]]<br />
+
*[[Special:MyLanguage/Energy storage sizing and selection|Energy storage sizing and selection]]<br />
−
*[[Surge loads|Surge loads]]<br />
 
−
*[[Power factor|Power factor]]<br />
 
−
*[[Duty cycle|Duty cycle]]<br/>
 
  
−
====Site evaluation====
+
===PV source and charge controller sizing and selection=== <!--T:19-->
−
*[[Site evaluation process|Overview of the site evaluation process]]<br />
+
*[[Special:MyLanguage/PV source and charge controller sizing and selection overview|PV source and charge controller sizing and selection overview]]<br />
−
*[[Load evaluation|Load evaluation]]<br />
+
====Simplified design process====
−
*[[Physical evaluation|Physical evaluation]]<br />
+
*[[Special:MyLanguage/Simplified minimum PV source size|Simplified minimum PV source size]]<br />
−
*[[Weather and solar resource evaluation|Weather and solar resource evaluation]]<br />
+
*[[Special:MyLanguage/Simplified PWM charge controller sizing and selection|Simplified PWM charge controller sizing and selection]]<br />
−
*[[Load and solar resource comparison|Load and solar resource comparison]]<br />
+
*[[Special:MyLanguage/Simplified MPPT charge controller sizing and selection|Simplified MPPT charge controller sizing and selection]]<br />
 +
====Detailed design process====
 +
*[[Special:MyLanguage/Minimum PV source size|Minimum PV source size]]<br />
 +
*[[Special:MyLanguage/PWM charge controller sizing and selection|PWM charge controller sizing and selection]]<br />
 +
*[[Special:MyLanguage/MPPT charge controller sizing and selection|MPPT charge controller sizing and selection]]<br />
  
−
====Design parameters====
+
===Inverter sizing and selection=== <!--T:20-->
−
*[[Overview of design parameters|Overview of design parameters]]<br />
+
====Simplified design process====
−
*[[System voltage parameter|System voltage parameter]]<br />
+
*[[Special:MyLanguage/Simplified inverter sizing and selection|Simplified inverter sizing and selection]]<br />
−
*[[Irradiance safety parameter|Irradiance safety parameter]]<br />
+
====Detailed design process====
−
*[[Continuous duty safety parameter|Continous duty safety parameter]]<br />
+
*[[Special:MyLanguage/Inverter sizing and selection|Inverter sizing and selection]]<br />
−
*[[Low voltage disconnect parameter|Low voltage disconnect parameter]]<br />
 
  
−
====Energy storage sizing and selection====
+
===Wire, overcurrent protection, and disconnect sizing and selection=== <!--T:21-->
−
*[[Energy storage sizing and selection|Energy storage sizing and selection]]<br />
+
====Simplified design process====
 +
*[[Special:MyLanguage/Simplified wire, overcurrent protection, and disconnect sizing and selection|Simplified wire, overcurrent protection, and disconnect sizing and selection]]
 +
====Detailed design process====
 +
*[[Special:MyLanguage/Wire, overcurrent protection, and disconnect sizing and selection|Wire, overcurrent protection, and disconnect sizing and selection]]
  
−
====PV source and charge controller sizing and selection====
+
===Grounding system sizing and selection=== <!--T:22-->
−
*[[Overview of PV source and charge controller sizing and selection|Overview of PV source and charge controller sizing and selection]]<br />
+
====Simplified design process====
−
*[[Minimum PV source size|Minimum PV source size]]<br />
+
*[[Special:MyLanguage/Simplified grounding system sizing and selection|Simplified grounding system sizing and selection]]<br />
−
*[[PWM charge controller sizing and selection|PWM charge controller sizing and selection]]<br />
+
====Detailed design process====
−
*[[MPPT charge controller sizing and selection|MPPT charge controller sizing and selection]]<br />
+
*[[Special:MyLanguage/Grounding system sizing and selection|Grounding system sizing and selection]]<br />
  
−
====Inverter sizing and selection====
+
==Design examples== <!--T:23-->
−
*[[Inverter sizing and selection|Inverter sizing and selection]]<br />
+
*[[Special:MyLanguage/Detailed DC system design|Detailed DC system design]]<br />
−
====Wire, overcurrent protection, and disconnect sizing and selection====
+
*[[Special:MyLanguage/Detailed AC/DC system design|Detailed AC/DC system design]]<br />
−
*[[Wire, overcurrent protection, and disconnect sizing and selection|Wire, overcurrent protection, and disconnect sizing and selection]]
+
*[[Special:MyLanguage/Detailed AC system design|Detailed AC system design]]<br />
  
−
====Grounding system sizing and selection====
+
==System installation== <!--T:24-->
−
*[[Grounding system sizing and selection|Grounding system sizing and selection]]<br />
+
*[[Special:MyLanguage/Principles of installation|Principles of installation]]<br />
 +
*[[Special:MyLanguage/Equipment clearances and safe working space|Equipment clearances and safe working space]]<br />
 +
*[[Special:MyLanguage/Wiring practices|Wiring practices]]<br />
 +
*[[Special:MyLanguage/Wiring basic load circuits|Wiring basic load circuits]]<br />
 +
*[[Special:MyLanguage/Battery wiring|Battery wiring]]<br/>
 +
*[[Special:MyLanguage/Installing module connectors|Installing module connectors]]<br />
 +
*[[Special:MyLanguage/Charge controller programming|Charge controller programming]]<br />
 +
*[[Special:MyLanguage/Inverter programming|Inverter programming]]<br />
 +
*[[Special:MyLanguage/Labeling|Labeling]]<br />
 +
*[[Special:MyLanguage/Commissioning|Commissioning]]<br />
  
−
==System installation==
+
==Operations and maintenance== <!--T:25-->
−
*[[Principles of installation|Principles of installation]]<br />
+
*[[Special:MyLanguage/Troubleshooting|Troubleshooting]]
−
*[[Equipment clearances and safe working space|Equipment clearances and safe working space]]<br />
 
−
*[[Wiring practices|Wiring practices]]<br />
 
−
*[[Battery wiring|Battery wiring]]<br/>
 
−
*[[Installing module connectors|Installing module connectors]]<br />
 
−
*[[Charge controller programming|Charge controller programming]]<br />
 
−
*[[Inverter programming|Inverter programming]]<br />
 
−
*[[Labeling|Labeling]]<br />
 
−
*[[Commissioning|Commissioning]]<br />
 
  
−
==Operations and maintenance==
+
==Resources== <!--T:26-->
−
*[[Troubleshooting|Troubleshooting]]
+
*[[Special:MyLanguage/Resources|Resources]]<br />
 +
*[[Special:MyLanguage/Training providers|Training providers]]<br />
  
−
==Resources==
+
==Country pages== <!--T:27-->
−
*[[Resources|resources]]<br />
+
*[[Special:MyLanguage/Colombia|Colombia]]
−
*[[Weather and solar resource data sources|Weather and solar resource data sources]]<br />
+
*[[Special:MyLanguage/Peru|Peru]]
−
*[[Wire sizing resources|Wire sizing resources]]<br />
+
*[[Special:MyLanguage/United States|United States]]
  
−
==Country pages==
 
−
*[[Peru|Peru]]
 
  
 
</translate>
 
</translate>

Latest revision as of 16:44, 5 April 2021

Other languages:
English • ‎español

Welcome to the Open Source Solar Project

The mission of Open Source Solar Project is to share information in various langauges about the design and installation of off-grid photovoltaic (PV) systems to lead to better performing, safer systems in the developing world. Please reach out to alex@opensourcesolar.org if you are interested in collaborating, have found mistakes, would like to contribute or need assistance creating training materials.

Be advised that design, installation, and maintenance work should only be performed by qualified individuals in accordance with local codes and laws. There is no guarantee that the information provided on this website is accurate or complete - use it at your own risk. It is intended to serve as an educational and reference resource - appropriate hands on training is required in order to safely work with electricity and PV systems. See Training providers for a list of recommended training providers.

Consult the User's Guide for information on using the wiki software.

About OSSP

Basic concepts

System components

Certifications and ratings

Photovoltaic (PV) source

Energy storage

Charge controller

Inverter

Power distribution

Mounting system

Conductors (wires, cables)

Physical conductor protection

Protection devices and disconnects

Grounding

Loads (lighting and appliances)

System design

Design tools

Background

Site evaluation

Simplified design process

Detailed design process

Design parameters

Simplified design process

  • All design parameters are incorporated into the other simplified design process pages.

Detailed design process

Energy storage sizing and selection

Simplified design process

Detailed design process

PV source and charge controller sizing and selection

Simplified design process

Detailed design process

Inverter sizing and selection

Simplified design process

Detailed design process

Wire, overcurrent protection, and disconnect sizing and selection

Simplified design process

Detailed design process

Grounding system sizing and selection

Simplified design process

Detailed design process

Design examples

System installation

Operations and maintenance

Resources

Country pages


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