Solar Power International is powered by SEIA and SEPA, the two leading non-profits that provide a voice for the solar industry. The event brings together 18,000+ attendees from all cross-sections of the industry for four days of innovation and collaboration.

If you are a member of national SEIA or SEPA, you are eligible for a discounted rate at SPI. Additional details are listed below.

For conference information or assistance registering, please contact 800-748-4736 or 508-743-8522 (International) during business hours (Monday-Friday, 9am - 6pm ET). You may also email us at spi@xpressreg.net.

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