Join us for COSSA’s Solar Power Mountain West Installer Day on Tuesday, March 3rd! This year, SEI is bringing five high-impact training sessions to the conference, including a dedicated session on Colorado’s new SB165 licensing requirements and pre-apprenticeship pathways into IECRM’s Electrician Apprenticeship Program. This is a fantastic opportunity to deepen your technical knowledge and earn NABCEP continuing education credits while connecting with the trades. Tickets for entry include: Full Conference Pass, Tuesday Only Pass or Specialty Discounted Installer Day Only Pass. Register now!

Installer Day Training

Orientation & Pre-Apprenticeship Session

Learn all about the evolving credential and career landscape for the solar workforce in Colorado. The session will explore how recent policy changes are shaping workforce pathways, what this means for current and future solar professionals, and how training and credentialing can support long-term career growth in the industry.

2026 NEC® Changes Affecting PV and Energy Storage System

Join us for a discussion of changes in the 2026 NEC®. Regardless of the version of the National Electrical Code enforced in your jurisdiction, the Code drives industry-wide best practices and product development cycles of manufacturers and is critical for installers, designers, manufacturers, engineers, developers, and building officials to stay current. This presentation will focus on updates and changes that impact PV and storage system design and installation for all types of applications, ranging from off-grid, to interactive PV systems on buildings, up to utility-scale solar farms. There are some great updates that will help reduce system cost while maintaining safety – you need to know what they are to take advantage; there’s also some updates that may end up adding cost – and you need to know the best ways to deal with them. Bring questions if you have them and be ready for a fun time talking Code.

PV Installation Best Practices

The good, the bad, and the ugly: gain insight on how to do it right, save on installation time and labor, and avoid unnecessary call-backs and red-tags from your AHJ or utility. A fun-filled presentation on residential, commercial, and utility-scale PV systems that will make you groan, gasp, and, at the same time, have some “”a-ha”” moments.

Large-scale PV and Storage System Configurations

In this presentation, we will discuss the common configurations for utility-scale PV and PV+ storage system configurations. These include PV systems featuring string inverters, which utilize one of several different DC wiring configurations:  integrated combiner boxes, external combiner boxes, and combiner boxes with wiring harnesses. Next are central inverter configurations, including options with combiner boxes, harnesses, and external or integrated DC disconnects. Finally we’ll cover PV systems coupled with battery energy storage, highlighting both DC-coupled and AC-coupled configurations, including DC-to-DC converters.

O&M Tools and Techniques 

This presentation highlights the theory behind, and safe and practical use of, tools and equipment designed for operation, maintenance, and troubleshooting of PV systems. We will cover O&M best practices, relevant standards, and troubleshooting techniques using tools such as I-V curve tracers, thermal imaging, insulation resistance testers, digital multimeters, and more

Attend the 2026 Solar Power and Energy Storage Mountain West Conference

REGISTER NOW