# Photovoltaic string

Canonical URL: https://eloragrid.ai/symbols/photovoltaic-string
Publisher: Elora Grid
Updated: 2026-10-27
Lookup label: PV STR
Drawing use: Schematic
Reference families: Manufacturer

A photovoltaic string is a defined series-connected group of modules.

## In plain English

### What does Photovoltaic string mean?

A photovoltaic string is a defined series-connected group of modules.

### A simple example

A solar drawing can identify each string before it reaches a combiner or inverter input.

### What the drawings help you do

Identify the modules connected in series and label the string’s ends. A string is a connection arrangement, not a particular module product. The module choice and number in series determine the conditions that must be checked against the connected equipment and installation requirements.

### Before using this reference

- State module type and number in series.
- Identify the string’s positive and negative connections.
- Cross-reference the selected combiner, isolation and receiving equipment.

### Does adding modules in series have the same effect as adding parallel strings?

No. Series connections add module voltages; parallel connections combine current paths. The complete electrical design must account for the selected modules and their operating conditions.

### Terms

- Series: An end-to-end connection in which the connected path passes through each element.
- String: A defined series-connected group of photovoltaic modules.

Concept diagram: Specified module sequence → Series-connected string → String DC terminals
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

- [Solar electrical system architecture](https://www.ti.com/applications/industrial/energy-infrastructure/solar-energy/overview.html)


## What it represents

A photovoltaic string is a defined series-connected group of modules.
A solar drawing can identify each string before it reaches a combiner or inverter input.
Identify the modules connected in series and label the string’s ends. A string is a connection arrangement, not a particular module product. The module choice and number in series determine the conditions that must be checked against the connected equipment and installation requirements. This is original functional artwork, not a certified standard graphic or device pinout.

## How to read it

- State module type and number in series.
- Identify the string’s positive and negative connections.
- Cross-reference the selected combiner, isolation and receiving equipment.
- The number and type of modules determine string conditions; the label alone does not.

## Information to show or reference

- State module type and number in series.
- Identify the string’s positive and negative connections.
- Cross-reference the selected combiner, isolation and receiving equipment.

## Important distinction

The number and type of modules determine string conditions; the label alone does not.

## Facts

- Representation type: Original functional block; not a certified IEC or IEEE graphic
- Concept input: Specified module sequence
- Concept output: String DC terminals

## Public references

- [Solar electrical system architecture](https://www.ti.com/applications/industrial/energy-infrastructure/solar-energy/overview.html) — Texas Instruments. Solar electrical system architecture: public technical context for the named function. Product and compliance details remain with the publisher.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.