How do i contact the energy department in the us? CONTACT US. Representatives are available Monday to Friday, 8 am to 5 pm, excluding holidays. Contact us online (we will respond via email). Or call 1-800-368-3749 (1-800-ENTERGY).How do i contact nv energy customer service? Customer Service: Available 24/7. (775) 834-4444. Email Customer Service. Emergency Contact. Gas Leaks, Outages & Emergencies. (775) 834-4100. IMPORTANT: For Gas Leaks & Sparking Power Lines How do i get in touch with energy providers? Automated telephone system at 1-800-368-3749 (1-800-ENTERGY). System features and menu options. GET ANSWERS to frequently asked questions. FAQ. CONTACT US. Representatives are available Monday to Friday, 8 am to 5 pm, excluding holidays. Contact us online (we will respond via email). Or call 1-800-368-3749 (1-800-ENTERGY).How do i contact irving energy? Irving Energy - contact us. If you would prefer to contact us by phone, need immediate assistance, or have a safety-related inquiry, give us a call at 1.888.310.1924.