If you prefer Charlton Premium 100% Local Green, the product option that includes 100% local renewable energy content, please complete the secure online form below. Be sure to use the name and address associated with the account. Your product choice will be changed on the next available meter read. Alternatively, you may contact the program supplier, NextEra Energy Services, directly at (855) 639-8103, Monday through Friday, 9:00 AM to 5:00 PM EST (excluding holidays). Please have your National Grid account information available when contacting. Be sure to use the name and address associated with the account. Your National Grid bill will reflect the change in supply rate for the product option you selected on your next available meter read date.