Sign up now to secure your shares! Once you submit this form, a specialist will follow up with you to confirm your enrollment. If you’re unsure how to determine your subscription level, check out our Solar Share calculator. If you prefer to enroll by phone, you may contact one of our specialists at 800-356-5467, then press 1, 4. Our specialists are available Monday through Friday, from 8 a.m. to 5 p.m.