PLS does not offer free certification, but the demo allows you to practice for the PE exam’s transmission line section.
The Power Line Systems (PLS) software suite, including , PLS-POLE , SAPS , and TOWER , is an industry-standard toolkit for designing and analyzing overhead power lines and structures. While these are high-end professional tools, there are specific "free" options for those looking to explore the software. Software Overview
Those do not exist. Any site offering a "Free Edition" other than Power Line Systems’ official demo is a scam or malware.