For new customers, if you refer a friend or family member within 90 days of your contract signing you can earn up to $1,000! After 90 days, refer any friend or family member for $500 in earnings! **Existing known High Definition Solar contacts will not be considered qualified referrals. Following the referral’s installation and full payment, you will receive your referral payment from High Definition Solar. Qualified referrals that do not sign an agreement with High Definition Solar within 90 days of your submission date will expire. Referral payments apply only to solar referrals.