If you are looking for specific textbooks or a wider variety of technical guides, these platforms are reliable sources:

: Many high-level reports on energy, transportation, and vehicle technology are available as free PDFs.

: Offers over 800 free textbooks, including many introductory texts in Electrical and Electronic Engineering written by academics.

: This 49-page deep dive explores the massive technological and social shifts required to move from internal combustion to electric motors. You can download the PDF for free at IEEE Spectrum .

These resources are currently available for direct download or online reading through reputable platforms:

: This resource provides chapters on simple electric machines, power flow control, and solar-powered charging infrastructure. Access the download at Routledge .