
Residential electric service RG1 facilities refer to the 3-tier time-of-use residential service provided by the Wisconsin Electric Power Company. The company provides electricity to single-unit and multi-unit dwellings, with rates based on the number of dwelling units and the type of metering. The company generally furnishes single-phase, 60 hertz service at 120/240 volts, with single or three-phase service at 240 volts available in certain areas. Customers using the service for less than a year are subject to a monthly minimum charge, and temporary disconnection of service may result in additional charges.
| Characteristics | Values |
|---|---|
| Service | Single-phase, 60 hertz service at 120/240 volts |
| Single or three-phase service at 240 volts | |
| In three-phase, four-wire areas, 60 hertz service at 120/208 volts | |
| Single-phase loads served from three-wire circuits (two phases and neutral) | |
| Three-phase loads served from four-wire circuits (three phases and neutral) | |
| Multi-unit dwellings | Separately metered units served under the residential rate |
| Single-metered, multi-unit dwellings with up to four units may be served under this rate, subject to conditions | |
| Billing | Monthly minimum charge for single or multi-unit dwellings includes facilities and meter charges |
| 1% late payment charge applied to outstanding charges | |
| No reduced minimum charge for temporary disconnection | |
| Customer to pay for reconnection if disconnected for less than a year |
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What You'll Learn

Single-phase service at 120/240 volts
Residential electric service is the provision of electricity to homes and buildings. In the context of RG1 facilities, this refers to the Wisconsin Electric Power Company's residential service. RG1, Rg2, and Rg3 are rate schedules that dictate the conditions of delivery for residential service.
The 120/240-volt system is sometimes referred to as a split-phase system. This is because, before entering a house, the electricity supply passes through a transformer that creates two 120-volt sources in series, with a "split" or center tap in between. This center tap is grounded, providing a reference point for the two phases. The two phases are 180 degrees out of phase with each other, creating the two voltage levels supplied to residences.
In a single-phase 120/240-volt power circuit, the maximum power is calculated by multiplying the voltage by the current. For example, assuming a 200-amp power circuit, the maximum power deliverable is 200 multiplied by 240, resulting in a maximum power of 48,000 watts.
It's important to note that the terminology used to describe the 120/240-volt system can vary. While some consider it single-phase due to the nature of the motors used, others refer to it as two-phase or split-phase to highlight the presence of two voltage levels. However, the standard terminology in the power industry is to refer to it as single-phase.
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Three-phase service at 240 volts
Three-phase electrical power is the most common method of alternating current (AC) power transfer used by electric grids worldwide. It is a type of polyphase system, where the power enters a data centre through three power lines that are 120 degrees apart.
In the US, 240V power is provided to homes and small buildings as a 120/240V 1 Phase 3 Wire power circuit. This means that it provides 120V for light loads, such as lights and TVs, and 240V for medium loads, such as water heaters and AC compressors.
In Wisconsin, the electric power company provides single-phase or three-phase service at 240 volts in accordance with the Electric Service Rules and Regulations of the Company.
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Temporary disconnection of service
If a customer's service is temporarily disconnected and then reconnected within 12 months, they must pay the minimum charge for the months of disconnection, as well as the cost of reconnection. This is outlined in the Electric Service Rules and Regulations of the Company, which states that a reduced minimum charge will not be provided for temporary disconnections.
The Wisconsin Electric Power Company offers a range of residential services, including RG1, RG2, and RG3. These services provide single-phase, 60-hertz power at 120/240 volts, with the option of single or three-phase service at 240 volts. In three-phase, four-wire areas, the company furnishes 60-hertz service at 120/208 volts. Single-phase loads are served through three-wire circuits, while three-phase loads utilise four-wire circuits.
The company's residential rates also apply to multi-unit dwellings, where each unit is separately metered. This includes service to janitor's quarters and separately metered public portions of multi-owned dwellings with four or fewer units. For dwellings with not more than four separate units in the same structure, service may be provided under this rate if it complies with Section 102.5 of the Electric Service Rules and Regulations of the Company.
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Monthly minimum charge
The monthly minimum charge for residential service under the RG1 rate schedule in Wisconsin appears to be the facilities charge plus the meter charge. This applies to both single and multi-unit dwellings. In multi-unit dwellings where each unit is separately metered, service to each unit is furnished under the residential rate. Single-metered, multi-unit dwellings with no more than four separate dwelling units in the same structure may be served under this rate but only in accordance with Section 102.5 of the Electric Service Rules and Regulations of the company governing resale.
Customers who use the service for less than a year are still required to pay the monthly minimum charge during the months when service is not required. If a customer requests a temporary disconnection of service, they will not receive a reduced minimum charge. If the service is reconnected within 12 months, the customer must pay the minimum charge for the months of disconnection, as well as the cost of reconnection as specified in the Electric Service Rules and Regulations.
The company will generally furnish single-phase, 60-hertz service at 120/240 volts. Single or three-phase service at 240 volts will be provided in accordance with the Electric Service Rules and Regulations of the company. In any established three-phase, four-wire area, the company will provide 60-hertz service at 120/208 volts. Single-phase loads will be served from three-wire circuits (two phases and neutral), and three-phase loads from four-wire circuits (three phases and neutral).
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Multi-unit dwellings
When it comes to electrical service, multi-unit dwellings have specific requirements for load calculations. These calculations take into account factors such as the number of dwelling units, the presence of electric cooking equipment, electric heating, and air-conditioning systems. The load calculations also consider common areas, such as laundry facilities, parking lot lighting, and common recreation spaces.
For example, when sizing the service for a multi-unit dwelling, the load is calculated by summing the loads of each individual dwelling unit and then applying the appropriate demand factors. This can be done using either the standard method or the optional method outlined in the National Electrical Code (NEC). The standard method involves three calculation steps, including general lighting VA load, branch circuits, and feeder/service loads. The optional method, on the other hand, simplifies the process by taking into account general lighting, appliance loads, and the largest heating or cooling load.
It's important to note that multi-unit dwellings are generally supplied at one voltage level and system type. Additionally, a single-phase, 120/240 volts service is typically provided for these dwellings, and the conductors are sized based on the calculated load.
In terms of rates, single-metered multi-unit dwellings with four or fewer separate dwelling units may be served under a specific rate, as outlined by the Electric Service Rules and Regulations of the company governing resale. Temporary service is also available for buildings under construction that qualify for the residential rate.
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Frequently asked questions
The monthly minimum charge for a single or multi-unit dwelling is the facilities charge plus the meter charge.
RG1 facilities will generally furnish single-phase, 60 hertz service at 120/240 volts.
There is a 1% per month late payment charge on outstanding charges that are past due.
In a three-phase, four-wire area, RG1 facilities will furnish 60 hertz service at 120/208 volts.
































