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Godfrey Boyle is a Professor at The Open University. The OU often releases educational materials under Creative Commons licenses. While the full textbook is a paid product, you can often find free chapters, excerpts, and related course materials on the platform.

(Godfrey Boyle) Renewable Electricity and The Grid (BookFi) PDF

If you are a student, engineer, or renewable energy enthusiast, you have likely come across . It is widely considered one of the foundational textbooks for understanding sustainable power systems.