New Course Announcement: Transformer Specification & Applications for Inverter-Based Resources

As many residential solar designers move up into larger C&I and utility-scale projects, the work starts to look pretty different from a rooftop install. Transformer specification is one of those areas where the learning curve shows up fast and where a wrong call has real consequences for grounding, upstream protection, and utility sign-off.

That’s why we’re excited to announce a new course from Mayfield Renewables: Transformer Specification & Applications for Inverter-Based Resources, taught by Sam Smith, an engineering consultant with Mayfield Renewables.

Who This Course Is For

This course is built for designers, engineers, and developers working on behind-the-meter solar and storage projects, particularly those taking on more complex C&I work and looking to get more confident with transformer selection and procurement.

What You’ll Learn

Across six sections, Sam builds from fundamentals to application. The course starts with nameplate literacy and transformer basics, moves into sizing methods, winding configurations, harmonics, and grounding considerations, and wraps up with a practical look at project workflows – including who’s responsible for what when procuring a transformer for an inverter-based resource project.

Sam draws on his background in transformer manufacturing to explain not just what to specify, but why it matters and where miscommunication between owners, engineers of record, and OEMs tends to create problems.

Why Enroll?

Transformer specification for inverter-based resource projects comes with a specific set of common pitfalls – mismatched winding configurations, undersized kVA, or grounding assumptions that don’t hold up to utility requirements can stall a project or create real safety issues. This course gives you the foundation to get it right the first time.

Enroll in the Transformer Specification & Applications for Inverter-Based Resources course today!