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"sessionKwh": 1.755, "dutyCycle": 0.52 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 25, "heatUpKwh": 2.517, "sessionKwh": 2.46, "dutyCycle": 0.547 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 25, "heatUpKwh": 3.75, "sessionKwh": 3.72, "dutyCycle": 0.551 } ] }, { "outdoorF": 73, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 22, "heatUpKwh": 1.65, "sessionKwh": 1.742, "dutyCycle": 0.516 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 25, "heatUpKwh": 2.467, "sessionKwh": 2.444, "dutyCycle": 0.543 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 25, "heatUpKwh": 3.675, "sessionKwh": 3.695, "dutyCycle": 0.547 } ] }, { "outdoorF": 74, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 22, "heatUpKwh": 1.625, "sessionKwh": 1.733, "dutyCycle": 0.513 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 24, "heatUpKwh": 2.417, "sessionKwh": 2.427, "dutyCycle": 0.539 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 24, "heatUpKwh": 3.6, "sessionKwh": 3.669, "dutyCycle": 0.544 } ] }, { "outdoorF": 75, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 21, "heatUpKwh": 1.6, "sessionKwh": 1.724, "dutyCycle": 0.511 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 24, "heatUpKwh": 2.383, "sessionKwh": 2.416, "dutyCycle": 0.537 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 24, "heatUpKwh": 3.525, "sessionKwh": 3.644, "dutyCycle": 0.54 } ] }, { "outdoorF": 76, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 21, "heatUpKwh": 1.563, "sessionKwh": 1.711, "dutyCycle": 0.507 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 23, "heatUpKwh": 2.333, "sessionKwh": 2.399, "dutyCycle": 0.533 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 23, "heatUpKwh": 3.475, "sessionKwh": 3.626, "dutyCycle": 0.537 } ] }, { "outdoorF": 77, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 21, "heatUpKwh": 1.538, "sessionKwh": 1.702, "dutyCycle": 0.504 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 23, "heatUpKwh": 2.283, "sessionKwh": 2.382, "dutyCycle": 0.529 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 23, "heatUpKwh": 3.4, "sessionKwh": 3.6, "dutyCycle": 0.533 } ] }, { "outdoorF": 78, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 20, "heatUpKwh": 1.5, "sessionKwh": 1.689, "dutyCycle": 0.5 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 23, "heatUpKwh": 2.25, "sessionKwh": 2.37, "dutyCycle": 0.527 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 22, "heatUpKwh": 3.35, "sessionKwh": 3.583, "dutyCycle": 0.531 } ] }, { "outdoorF": 79, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 20, "heatUpKwh": 1.475, "sessionKwh": 1.68, "dutyCycle": 0.498 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 22, "heatUpKwh": 2.2, "sessionKwh": 2.353, "dutyCycle": 0.523 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 22, "heatUpKwh": 3.275, "sessionKwh": 3.557, "dutyCycle": 0.527 } ] }, { "outdoorF": 80, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 19, "heatUpKwh": 1.45, "sessionKwh": 1.671, "dutyCycle": 0.495 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 22, "heatUpKwh": 2.15, "sessionKwh": 2.335, "dutyCycle": 0.519 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 21, "heatUpKwh": 3.2, "sessionKwh": 3.53, "dutyCycle": 0.523 } ] }, { "outdoorF": 81, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 19, "heatUpKwh": 1.413, "sessionKwh": 1.657, "dutyCycle": 0.491 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 21, "heatUpKwh": 2.117, "sessionKwh": 2.324, "dutyCycle": 0.516 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 21, "heatUpKwh": 3.15, "sessionKwh": 3.512, "dutyCycle": 0.52 } ] }, { "outdoorF": 82, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 19, "heatUpKwh": 1.388, "sessionKwh": 1.648, "dutyCycle": 0.488 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 21, "heatUpKwh": 2.067, "sessionKwh": 2.306, "dutyCycle": 0.512 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 21, "heatUpKwh": 3.075, "sessionKwh": 3.485, "dutyCycle": 0.516 } ] }, { "outdoorF": 83, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 18, "heatUpKwh": 1.363, "sessionKwh": 1.639, "dutyCycle": 0.486 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 20, "heatUpKwh": 2.033, "sessionKwh": 2.294, "dutyCycle": 0.51 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 20, "heatUpKwh": 3.025, "sessionKwh": 3.467, "dutyCycle": 0.514 } ] }, { "outdoorF": 84, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 18, "heatUpKwh": 1.338, "sessionKwh": 1.63, "dutyCycle": 0.483 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 20, "heatUpKwh": 1.983, "sessionKwh": 2.276, "dutyCycle": 0.506 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 20, "heatUpKwh": 2.95, "sessionKwh": 3.44, "dutyCycle": 0.51 } ] }, { "outdoorF": 85, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 17, "heatUpKwh": 1.3, "sessionKwh": 1.616, "dutyCycle": 0.479 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 20, "heatUpKwh": 1.95, "sessionKwh": 2.264, "dutyCycle": 0.503 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 19, "heatUpKwh": 2.9, "sessionKwh": 3.422, "dutyCycle": 0.507 } ] }, { "outdoorF": 86, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 17, "heatUpKwh": 1.275, "sessionKwh": 1.606, "dutyCycle": 0.476 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 19, "heatUpKwh": 1.9, "sessionKwh": 2.246, "dutyCycle": 0.499 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 19, "heatUpKwh": 2.825, "sessionKwh": 3.394, "dutyCycle": 0.503 } ] }, { "outdoorF": 87, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 17, "heatUpKwh": 1.25, "sessionKwh": 1.597, "dutyCycle": 0.473 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 19, "heatUpKwh": 1.867, "sessionKwh": 2.234, "dutyCycle": 0.496 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 19, "heatUpKwh": 2.775, "sessionKwh": 3.375, "dutyCycle": 0.5 } ] }, { "outdoorF": 88, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 16, "heatUpKwh": 1.225, "sessionKwh": 1.587, "dutyCycle": 0.47 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 18, "heatUpKwh": 1.817, "sessionKwh": 2.215, "dutyCycle": 0.492 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 18, "heatUpKwh": 2.7, "sessionKwh": 3.347, "dutyCycle": 0.496 } ] }, { "outdoorF": 89, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 16, "heatUpKwh": 1.188, "sessionKwh": 1.573, "dutyCycle": 0.466 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 18, "heatUpKwh": 1.783, "sessionKwh": 2.203, "dutyCycle": 0.49 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 18, "heatUpKwh": 2.65, "sessionKwh": 3.328, "dutyCycle": 0.493 } ] }, { "outdoorF": 90, "profiles": [ { "kw": 4.5, "room": "5′ × 5′ barrel", "heatUpMinutes": 16, "heatUpKwh": 1.163, "sessionKwh": 1.564, "dutyCycle": 0.463 }, { "kw": 6, "room": "6′ × 6′ barrel", "heatUpMinutes": 18, "heatUpKwh": 1.75, "sessionKwh": 2.19, "dutyCycle": 0.487 }, { "kw": 9, "room": "7′ × 8′ barrel", "heatUpMinutes": 17, "heatUpKwh": 2.6, "sessionKwh": 3.309, "dutyCycle": 0.49 } ] } ] }, "method": [ "The heater doesn't run every minute. It runs flat out until the room reaches temperature, then the thermostat switches the elements off and on to hold it. Each heater is modeled in a barrel it's sized for (solid wood staves, a 10 sq ft glass door), held at 176°F, at the outside temperature set on the slider (20°F to start). The big number in each cell is the 45 minutes you spend inside, with the heater cycling.", "Cycling cuts less than you'd expect in cold weather: at 20°F the heater still runs about 70% of the time, because the wood walls keep soaking up heat for the first hour. On a 90°F day it's under half. A second hour costs less again.", "Under the big number: the same 45 minutes at full rated power, which is the most it can cost, and the cost of the heat-up before you get in, at the same rate.", "Full power per minute = heater kW ÷ 60 × the period's ¢ per kWh. Cycling multiplies that by the share of time the heater is on.", "Winter and summer are each utility's own tariff seasons, which aren't the same months. The switch picks the price; the slider picks the weather, so you can price a cold October evening on MG&E's winter rates or a mild one.", "Per-kWh charges only. Fixed daily charges (MG&E $0.49315, Alliant $0.5260 single-phase) are on the bill whether or not the sauna runs, so they're left out. So is sales tax." ], "utilities": [ { "id": "mge", "name": "Madison Gas and Electric", "short": "MG&E", "effective": "2026-01-01", "holidays": "New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, Christmas", "schedules": [ { "code": "Rg-2A", "name": "Time-of-use", "role": "tou", "note": "Optional for any residential customer. MG&E moves time-of-use to a new structure on January 1, 2027.", "periods": [ { "id": "on-peak-1", "tier": "peak", "label": "On-peak 1", "bySeason": { "winter": { "hours": "10 a.m.–1 p.m. weekdays", "weekday": [ [ 10, 13 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.09646 }, "perKwh": 0.23632, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01772, "perSession": 0.7976 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01207, "perSession": 0.5431 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8538 }, "withHeatUp": 1.3969 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02363, "perSession": 1.0634 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01703, "perSession": 0.7661 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.2998 }, "withHeatUp": 2.0659 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03545, "perSession": 1.5952 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02577, "perSession": 1.1596 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.9496 }, "withHeatUp": 3.1093 } ] }, "summer": { "hours": "10 a.m.–1 p.m. weekdays", "weekday": [ [ 10, 13 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.0967 }, "perKwh": 0.23656, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01774, "perSession": 0.7984 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01208, "perSession": 0.5436 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8547 }, "withHeatUp": 1.3983 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02366, "perSession": 1.0645 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01704, "perSession": 0.7669 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.3011 }, "withHeatUp": 2.068 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03548, "perSession": 1.5968 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.0258, "perSession": 1.1608 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.9516 }, "withHeatUp": 3.1124 } ] } } }, { "id": "on-peak-2", "tier": "peak", "label": "On-peak 2", "bySeason": { "winter": { "hours": "1–6 p.m. weekdays", "weekday": [ [ 13, 18 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.09355 }, "perKwh": 0.23341, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01751, "perSession": 0.7878 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01192, "perSession": 0.5364 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8433 }, "withHeatUp": 1.3797 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02334, "perSession": 1.0503 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01682, "perSession": 0.7567 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.2838 }, "withHeatUp": 2.0405 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03501, "perSession": 1.5755 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02545, "perSession": 1.1453 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.9256 }, "withHeatUp": 3.071 } ] }, "summer": { "hours": "1–6 p.m. weekdays", "weekday": [ [ 13, 18 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.10653 }, "perKwh": 0.24639, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01848, "perSession": 0.8316 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01258, "perSession": 0.5662 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8902 }, "withHeatUp": 1.4564 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02464, "perSession": 1.1088 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01775, "perSession": 0.7988 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.3551 }, "withHeatUp": 2.1539 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03696, "perSession": 1.6631 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02687, "perSession": 1.209 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 2.0327 }, "withHeatUp": 3.2418 } ] } } }, { "id": "on-peak-3", "tier": "peak", "label": "On-peak 3", "bySeason": { "winter": { "hours": "6–9 p.m. weekdays", "weekday": [ [ 18, 21 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.09795 }, "perKwh": 0.23781, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01784, "perSession": 0.8026 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01214, "perSession": 0.5465 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8592 }, "withHeatUp": 1.4057 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02378, "perSession": 1.0701 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01713, "perSession": 0.771 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.308 }, "withHeatUp": 2.0789 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03567, "perSession": 1.6052 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02593, "perSession": 1.1669 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.9619 }, "withHeatUp": 3.1289 } ] }, "summer": { "hours": "6–9 p.m. weekdays", "weekday": [ [ 18, 21 ] ], "charges": { "distribution": 0.06255, "baseEnergy": 0.07731, "onPeakAdder": 0.10106 }, "perKwh": 0.24092, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01807, "perSession": 0.8131 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.0123, "perSession": 0.5536 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.8704 }, "withHeatUp": 1.4241 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02409, "perSession": 1.0841 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01736, "perSession": 0.7811 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.3251 }, "withHeatUp": 2.1061 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03614, "perSession": 1.6262 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02627, "perSession": 1.1822 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.9876 }, "withHeatUp": 3.1698 } ] } } }, { "id": "off-peak", "tier": "off-peak", "label": "Off-peak", "bySeason": { "winter": { "hours": "9 p.m.–10 a.m. weekdays, all weekend and holidays", "charges": { "distribution": 0.06255, "baseEnergy": 0.07731 }, "perKwh": 0.13986, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01049, "perSession": 0.472 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00714, "perSession": 0.3214 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.5053 }, "withHeatUp": 0.8267 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01399, "perSession": 0.6294 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01008, "perSession": 0.4534 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.7692 }, "withHeatUp": 1.2227 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02098, "perSession": 0.9441 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01525, "perSession": 0.6863 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.1538 }, "withHeatUp": 1.8401 } ] }, "summer": { "hours": "9 p.m.–10 a.m. weekdays, all weekend and holidays", "charges": { "distribution": 0.06255, "baseEnergy": 0.07731 }, "perKwh": 0.13986, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01049, "perSession": 0.472 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00714, "perSession": 0.3214 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.5053 }, "withHeatUp": 0.8267 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01399, "perSession": 0.6294 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01008, "perSession": 0.4534 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.7692 }, "withHeatUp": 1.2227 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02098, "perSession": 0.9441 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01525, "perSession": 0.6863 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.1538 }, "withHeatUp": 1.8401 } ] } } } ] }, { "code": "Rg-1", "name": "Standard", "role": "flat", "note": "The default residential rate. Same price at every hour.", "periods": [ { "id": "flat", "tier": "flat", "label": "Any hour", "bySeason": { "winter": { "hours": "All hours, all year", "charges": { "distribution": 0.06255, "electricity": 0.12178 }, "perKwh": 0.18433, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01382, "perSession": 0.6221 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00941, "perSession": 0.4236 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.666 }, "withHeatUp": 1.0896 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01843, "perSession": 0.8295 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01328, "perSession": 0.5976 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.0138 }, "withHeatUp": 1.6114 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02765, "perSession": 1.2442 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.0201, "perSession": 0.9045 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.5207 }, "withHeatUp": 2.4252 } ] }, "summer": { "hours": "All hours, all year", "charges": { "distribution": 0.06255, "electricity": 0.12178 }, "perKwh": 0.18433, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01382, "perSession": 0.6221 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00941, "perSession": 0.4236 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.666 }, "withHeatUp": 1.0896 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01843, "perSession": 0.8295 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01328, "perSession": 0.5976 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.0138 }, "withHeatUp": 1.6114 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02765, "perSession": 1.2442 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.0201, "perSession": 0.9045 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.5207 }, "withHeatUp": 2.4252 } ] } } } ] } ], "sources": [ { "label": "MG&E, 2026 Services and Prices (effective Jan. 1, 2026)", "url": "https://www.mge.com/MGE/media/MGE-Library/documents/general/2026-residential-business-services-prices-20260129.pdf" }, { "label": "MG&E, Residential electric rates", "url": "https://www.mge.com/my-account/rates/electric-rates/residential-electric-rates" } ], "seasons": { "winter": { "label": "October 1 through May 31", "short": "Oct–May", "months": [ 10, 11, 12, 1, 2, 3, 4, 5 ] }, "summer": { "label": "June 1 through September 30", "short": "Jun–Sep", "months": [ 6, 7, 8, 9 ] } } }, { "id": "alliant", "name": "Alliant Energy (Wisconsin Power and Light)", "short": "Alliant", "effective": "2026-01-01", "docket": "PSCW 6680-UR-125", "holidays": "New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, Christmas", "schedules": [ { "code": "Rg-5", "name": "Time-of-use", "role": "tou", "note": "The default for new homes (unless the service is 320 amps or more). In March–May and September–November there is no high-rate window: weekdays from 6 a.m. to 11 p.m. bill at the regular rate, and nights and weekends at the low rate.", "periods": [ { "id": "high", "tier": "peak", "label": "High", "bySeason": { "winter": { "hours": "5–9 p.m. weekdays", "weekday": [ [ 17, 21 ] ], "charges": { "energy": 0.29914, "fuelAdjustment": 0 }, "perKwh": 0.29914, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.02244, "perSession": 1.0096 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01528, "perSession": 0.6874 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 1.0808 }, "withHeatUp": 1.7682 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02991, "perSession": 1.3461 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.02155, "perSession": 0.9698 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.6453 }, "withHeatUp": 2.6151 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.04487, "perSession": 2.0192 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.03262, "perSession": 1.4679 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 2.4679 }, "withHeatUp": 3.9358 } ] }, "summer": { "hours": "11 a.m.–7 p.m. weekdays", "weekday": [ [ 11, 19 ] ], "charges": { "energy": 0.29914, "fuelAdjustment": 0 }, "perKwh": 0.29914, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.02244, "perSession": 1.0096 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01528, "perSession": 0.6874 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 1.0808 }, "withHeatUp": 1.7682 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02991, "perSession": 1.3461 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.02155, "perSession": 0.9698 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.6453 }, "withHeatUp": 2.6151 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.04487, "perSession": 2.0192 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.03262, "perSession": 1.4679 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 2.4679 }, "withHeatUp": 3.9358 } ] } } }, { "id": "regular", "tier": "peak", "label": "Regular", "bySeason": { "winter": { "hours": "6 a.m.–5 p.m. and 9–11 p.m. weekdays", "weekday": [ [ 6, 17 ], [ 21, 23 ] ], "charges": { "energy": 0.21014, "fuelAdjustment": 0 }, "perKwh": 0.21014, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01576, "perSession": 0.7092 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01073, "perSession": 0.4829 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.7592 }, "withHeatUp": 1.2421 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02101, "perSession": 0.9456 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01514, "perSession": 0.6813 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.1558 }, "withHeatUp": 1.837 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03152, "perSession": 1.4184 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02291, "perSession": 1.0312 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.7337 }, "withHeatUp": 2.7648 } ] }, "summer": { "hours": "6–11 a.m. and 7–11 p.m. weekdays", "weekday": [ [ 6, 11 ], [ 19, 23 ] ], "charges": { "energy": 0.21014, "fuelAdjustment": 0 }, "perKwh": 0.21014, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01576, "perSession": 0.7092 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.01073, "perSession": 0.4829 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.7592 }, "withHeatUp": 1.2421 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.02101, "perSession": 0.9456 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01514, "perSession": 0.6813 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 1.1558 }, "withHeatUp": 1.837 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.03152, "perSession": 1.4184 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.02291, "perSession": 1.0312 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.7337 }, "withHeatUp": 2.7648 } ] } } }, { "id": "low", "tier": "off-peak", "label": "Low", "bySeason": { "winter": { "hours": "11 p.m.–6 a.m. weekdays, all weekend and holidays", "charges": { "energy": 0.09514, "fuelAdjustment": 0 }, "perKwh": 0.09514, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.00714, "perSession": 0.3211 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00486, "perSession": 0.2186 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.3437 }, "withHeatUp": 0.5624 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.00951, "perSession": 0.4281 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.00685, "perSession": 0.3084 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.5233 }, "withHeatUp": 0.8317 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.01427, "perSession": 0.6422 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01037, "perSession": 0.4669 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 0.7849 }, "withHeatUp": 1.2518 } ] }, "summer": { "hours": "11 p.m.–6 a.m. weekdays, all weekend and holidays", "charges": { "energy": 0.09514, "fuelAdjustment": 0 }, "perKwh": 0.09514, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.00714, "perSession": 0.3211 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00486, "perSession": 0.2186 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.3437 }, "withHeatUp": 0.5624 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.00951, "perSession": 0.4281 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.00685, "perSession": 0.3084 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.5233 }, "withHeatUp": 0.8317 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.01427, "perSession": 0.6422 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01037, "perSession": 0.4669 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 0.7849 }, "withHeatUp": 1.2518 } ] } } } ] }, { "code": "Rg-1", "name": "Standard", "role": "flat", "note": "Same price at every hour.", "periods": [ { "id": "flat", "tier": "flat", "label": "Any hour", "bySeason": { "winter": { "hours": "All hours, all year", "charges": { "energy": 0.17011, "fuelAdjustment": 0 }, "perKwh": 0.17011, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01276, "perSession": 0.5741 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00869, "perSession": 0.3909 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.6146 }, "withHeatUp": 1.0055 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01701, "perSession": 0.7655 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01226, "perSession": 0.5515 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.9356 }, "withHeatUp": 1.4871 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02552, "perSession": 1.1482 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01855, "perSession": 0.8347 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.4034 }, "withHeatUp": 2.2381 } ] }, "summer": { "hours": "All hours, all year", "charges": { "energy": 0.17011, "fuelAdjustment": 0 }, "perKwh": 0.17011, "costs": [ { "kw": 4.5, "fullPower": { "kwh": 3.375, "perMinute": 0.01276, "perSession": 0.5741 }, "cycling": { "dutyCycle": 0.681, "kwh": 2.298, "perMinute": 0.00869, "perSession": 0.3909 }, "heatUp": { "minutes": 48, "kwh": 3.613, "cost": 0.6146 }, "withHeatUp": 1.0055 }, { "kw": 6, "fullPower": { "kwh": 4.5, "perMinute": 0.01701, "perSession": 0.7655 }, "cycling": { "dutyCycle": 0.72, "kwh": 3.242, "perMinute": 0.01226, "perSession": 0.5515 }, "heatUp": { "minutes": 55, "kwh": 5.5, "cost": 0.9356 }, "withHeatUp": 1.4871 }, { "kw": 9, "fullPower": { "kwh": 6.75, "perMinute": 0.02552, "perSession": 1.1482 }, "cycling": { "dutyCycle": 0.727, "kwh": 4.907, "perMinute": 0.01855, "perSession": 0.8347 }, "heatUp": { "minutes": 55, "kwh": 8.25, "cost": 1.4034 }, "withHeatUp": 2.2381 } ] } } } ] } ], "notes": [ "Rd-1 (demand rate, the default for new 320-amp services) isn't in the matrix. Its energy prices are 4¢ lower than Rg-5's, but it adds $5.88 per kW of your highest weekday hour between 10 a.m. and 8 p.m. One 45-minute 9 kW session inside a clock hour in that window sets a 6.75 kW peak: $39.69 on that month's bill. The tariff caps demand charges at 8.1¢ per kWh of the month's total use. Outside that window Rd-1 is the cheapest of the three.", "Fuel adjustment is $0.00000 for the 2026 fuel plan. October 2026 alone carries a one-month credit of $0.00788 per kWh (docket 6680-FR-2025)." ], "sources": [ { "label": "Alliant Energy, WPL residential rate summary (effective Jan. 1, 2026)", "url": "https://www.alliantenergy.com/-/media/alliant/documents/accountandbilling/ratesandtariffs/wplresidentialratesummary.pdf" }, { "label": "Alliant Energy, Wisconsin electric schedule of rates, Vol. III sheets 3.00–3.33", "url": "https://www.alliantenergy.com/-/media/alliant/documents/accountandbilling/ratesandtariffs/wisconsinelectricrates/wisconsinelectricscheduleofrates.pdf" } ], "seasons": { "winter": { "label": "December, January and February", "short": "Dec–Feb", "months": [ 12, 1, 2 ] }, "summer": { "label": "June, July and August", "short": "Jun–Aug", "months": [ 6, 7, 8 ] } } } ], "seasons": [ "winter", "summer" ] }