Free AutoCAD solar PV and battery storage symbols (DWG): modules, strings, inverters, batteries

About the symbols

The basic forms (photovoltaic generator, converter, battery, switching devices, meters) follow IEC 60617. PV-specific devices such as combiner boxes, optimizers, rapid shutdown devices, management systems and station blocks have no standard figure; they are drawn with the same elements, as is usual in the trade. More symbols after the standard are in the IEC 60617 libraries.

The blocks are our own drawings, not copies of a standard, and the library is not certified. Check them against the legend of your project or company and change a block if yours differs.

Frequently asked questions

Which standard do the symbols follow?

The basic electrical forms follow IEC 60617. For the devices that are specific to solar plants no standard defines a figure, so they are drawn in the conventional way with the same elements. If your client requires a particular legend, check the blocks against it and change what differs.

Can I use the symbols for hybrid and off-grid systems?

Yes. The library has hybrid inverters, inverters with charger, MPPT charge controllers, battery cells, banks, racks and containers, battery disconnect units, diesel generator sets, backup loads and automatic transfer switches, so grid-tied, hybrid and off-grid diagrams can all be drawn from it.

Can I use the symbols in commercial projects?

Yes. They are free to use and modify in your own projects, including commercial ones. They are provided as is, without warranty.

How is this library different from the power system single-line library?

The power system library covers generation, transmission, substations and distribution in general. This library holds the devices of solar plants and storage systems: modules and strings, DC protection, combiner boxes, inverters, battery systems, monitoring and EV charging. A few symbols such as transformers or earth appear in both with the same shape, so the two libraries can be used together.

Can I change a symbol or add attributes?

Yes. Open the DWG, edit a block with BEDIT to change it or add attributes, and save. To update drawings that already contain the block, run ATTSYNC or replace the block. Make a backup first: attribute values can be lost if ATTSYNC is used carelessly.

Where do I find a ready-made set of these symbols for AutoCAD?

AutoCAD itself ships only a small set of sample blocks, so a full symbol set has to come from a library. Download the ZIP on this page and open the DWG: every symbol is a block. Insert one with INSERT (Blocks palette, Libraries tab, then pick the DWG) or drag it from DesignCenter (ADCENTER). You can also download a single symbol on its own.