ESPAÑOL 한국어 中文 TIẾNG VIỆT Menu User Menu Search Log In / Register Interconnection and Standby Rates Home > Your Business > Generating Your Own Power > Interconnection and Standby Rates Facts about Standby Rates and Interconnection Standby rates are required if you self-generate some or all of your electrical power from your own generating facility. If your generating facility does not qualify for Net Energy Metering (or otherwise qualify for another exemption), you will be placed on one of three Standby rates (Schedule TOU-8-S or TOU-8-RTP-S for site load greater than 500 kW, or Schedule S for site load equal to or less than 500 kW). Learn More Connecting to Our Grid To connect your generating facility to our utility grid, you will need to apply for interconnection. Interconnection ensures that your generating facility is safe to operate and will not impact grid operations, and notifies our field personnel that you have a generating system on your property. Your generating facility must comply with: Rule 21 Electric Service Requirements Interconnection Handbooks National Electrical Code Applicable local codes and regulations Understanding Your Account on Standby Standby Demand Values For All Standby Accounts Standby (SB) is the “back-up” demand provided by us when your generating facility is not operating. SB demand is generally equal to the maximum recorded demand in excess of the demand regularly served by us. The SB demand cannot exceed the generating facility’s nameplate capacity and cannot be less than zero. We establish your initial SB demand values by gathering specific information and data (including historical usage from your site). We communicate these values to you when your account is established on Standby and anytime the values are changed. For Standby Accounts without Metered Connection We determine Supplemental Contract Capacity (SCC) based on the most frequent daily maximum demand over the past 36 months, or the longest period of usage history available (not less than 14 months).1 You are required to notify us of any changes to your site load or generating facility operation in order for us to evaluate the need to adjust your established SB demand values. Standby Billing When you are served on a Standby rate, your monthly bill will consist of Energy (kWh) and Demand (kW) charges similar to those on a comparable non-Standby rate. The major difference of a Standby rate is how your demand charges are calculated. Standby rates are designed to differentiate the portion of your load as either Supplemental service or Backup service. Supplemental service is power we supply when your generation (under normal operations) does not meet all of your energy needs. Backup service is power we supply during either a scheduled or unscheduled outage or curtailment of your generating facility. Properly identifying the service as Supplemental or Backup helps ensure that the appropriate prices are used to calculate your applicable monthly billed demand charges. All Standby customers are responsible for a monthly Customer Charge. All Standby customers are responsible for monthly Energy (kWh) charges that, when applicable, may be differentiated by: Season Time-of-Use Period Voltage Level Temperature and Day Type (only on the optional RTP rate) All Standby customers are responsible for the following Demand (kW) charges: Standby Capacity Reservation Charge (CRC) A monthly charge based on the established Standby demand value. This charge is calculated by multiplying your Standby demand value by the applicable CRC price. The CRC is billed every month regardless of the maximum demand registered on the meter. Facilities Related Demand (FRD) Charge FRD charges apply year round and are based on the maximum demand in excess of your established Standby demand value. The FRD charge is calculated by multiplying your excess demand by the applicable FRD price. When the maximum demand of your operations does not exceed your established Standby demand value during a billing period, no FRD charges will be billed. Standby customers are also responsible for the following Demand (kW) charges: Time-Related Demand (TRD) Charge TRD charges apply year round and are calculated per kW according to the highest recorded demand during summer On-Peak and winter Mid-Peak TOU periods, weekdays excluding weekends and holidays. Prior to us calculating your monthly charges, the On-Peak and Mid-Peak maximum demands are properly identified as either Supplemental service or Backup service, with the end result producing four unique demand-billing determinant values as follows: On-Peak kW Supplemental Time Related Demand Charge Backup Time Related Demand Charge Mid-Peak kW Supplemental Time Related Demand Charge Backup Time Related Demand Charge Each of the four TRD demand billing determinants are multiplied by a respective TRD price to determine monthly billed TRD charges. Note: For customers sized at 500 kW and below, TRD charges are not differentiated between Supplemental service and Backup service. Other charges (such as power factor) may be applicable depending on your rate schedule. Departing Load Charges may also apply: Departing Load charges are designed to recover your share of our market portfolio costs that are “stranded” by the departure from our system due to your self-generation, and other charges designated by the Commission as non-bypassable. Standby Rates and Interconnection: Frequently Asked Questions What is Standby? Are there any exemptions from the Standby rate requirement? How do I know which Standby rate is applicable to my account? What are the benefits of Standby? What is required for my account to be established on Standby? What is Supplemental Contract Capacity (SCC) kW? What is Standby kW? How will my Standby billing determinants be established? Once my Standby billing determinants are established, can they be adjusted? What happens if there are changes in operation at my facility? What happens if I am no longer generating at my facility? What is the Departing Load Tariff and how does it relate to the Standby Tariff? How is Departing Load determined? For more information regarding the Standby rate, contact your Account Manager or call 1-800-990-7788. Frequently Asked Questions Share by Email Print footer links QUICK LINKS Pay Your Bill Turn On/Turn Off Service Install Service/Local Planning Find Rebates Contact Us Help Center SITE SECTIONS Your Home Your Business Customer Support Partners & Vendors Outage Center Your Safety Energy Procurement Regulatory Sitemap MORE LINKS About Us Accessibility Careers Catalina Island Community Edison International Education Energized by Edison Newsroom FOLLOW US ON Facebook Twitter LinkedIn YouTube Footer bottom horizontal Terms & Conditions PRIVACY NOTICE CCPA Request Copyright Act Policy © 2021 Southern California Edison