Your simulation conditions

  • Your area九州エリア
  • Household size1 people
  • OccupancyDaytime Nobody home during the day
    Nighttime In bed between 10pm and midnight
  • Provider & planOther / not sure
    Estimated based on 九州電力 — スマートファミリープラン
  • Amperage30 A
  • All-electric homeNo
  • Electricity usageMonth 1: 160 kWh(1,970 kWh per year)
Compare more accurately

Search Results for 九州エリア

Octopus Energy

シンプルオクトパス 2026-10

Save ¥6,532 per year

Site exclusiveFriend referral discount ¥8,000 applied*The friend referral discount applies to the first year only.

Breakdown: switching savings −¥1,468/year + friend referral discount ¥8,000 (one-time)

  • No cancellation fee
  • 100% renewable
  • No basic charge
Est. monthly cost ¥4,754/mo
Est. annual cost ¥57,048/yr
View rate & plan details
Smart Family Plan シンプルオクトパス 2026-10
Basic / minimum charge ¥11,384 $0
Energy charge ¥39,156 ¥56,814
Fuel cost adjustment, etc. ¥4,806 $0
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Friend referral discount - −¥8,000
Total ¥63,580
Monthly average ¥5,298
¥57,048
Monthly average ¥4,754
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • The savings shown for this plan are the switching savings from the rate comparison above plus a site-exclusive friend referral discount of ¥8,000. The total in the rate details table is shown after deducting this discount.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • For plans with no amperage (contracted capacity) bands, the basic / minimum charge is calculated as a fixed amount regardless of the amperage you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
Octopus Energy

グリーンオクトパス 2026-10

Save ¥3,037 per year

Site exclusiveFriend referral discount ¥8,000 applied*The friend referral discount applies to the first year only.

Breakdown: switching savings −¥4,963/year + friend referral discount ¥8,000 (one-time)

  • No cancellation fee
  • 100% renewable
Est. monthly cost ¥5,045/mo
Est. annual cost ¥60,543/yr
View rate & plan details
Smart Family Plan グリーンオクトパス 2026-10
Basic / minimum charge ¥11,384 ¥15,746
Energy charge ¥39,156 ¥39,599
Fuel cost adjustment, etc. ¥4,806 ¥4,964
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Friend referral discount - −¥8,000
Total ¥63,580
Monthly average ¥5,298
¥60,543
Monthly average ¥5,045
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • The savings shown for this plan are the switching savings from the rate comparison above plus a site-exclusive friend referral discount of ¥8,000. The total in the rate details table is shown after deducting this discount.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
テラセルでんき

TERASELプラン

Save ¥2,416 per year

  • No cancellation fee
Est. monthly cost ¥5,097/mo
Est. annual cost ¥61,164/yr
View rate & plan details
Smart Family Plan TERASELプラン
Basic / minimum charge ¥11,384 ¥10,850
Energy charge ¥39,156 ¥37,274
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥61,164
Monthly average ¥5,097
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
テラセルでんき

超TERASELプラン

Save ¥794 per year

  • No cancellation fee
Est. monthly cost ¥5,232/mo
Est. annual cost ¥62,786/yr
View rate & plan details
Smart Family Plan 超TERASELプラン
Basic / minimum charge ¥11,384 ¥11,384
Energy charge ¥39,156 ¥38,362
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥62,786
Monthly average ¥5,232
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
ENEOS Denki

V Plan

Save ¥487 per year

  • No cancellation fee
Est. monthly cost ¥5,258/mo
Est. annual cost ¥63,093/yr
View rate & plan details
Smart Family Plan V Plan
Basic / minimum charge ¥11,384 ¥11,368
Energy charge ¥39,156 ¥38,685
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥63,093
Monthly average ¥5,258
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
Eneone Denki

Ene-One Happy

Save ¥396 per year

  • No cancellation fee
Est. monthly cost ¥5,265/mo
Est. annual cost ¥63,184/yr
View rate & plan details
Smart Family Plan Ene-One Happy
Basic / minimum charge ¥11,384 ¥10,988
Energy charge ¥39,156 ¥39,156
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥63,184
Monthly average ¥5,265
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.

Save ¥376 per year

  • No cancellation fee
Est. monthly cost ¥5,267/mo
Est. annual cost ¥63,204/yr
View rate & plan details
Smart Family Plan S Plan
Basic / minimum charge ¥11,384 ¥11,384
Energy charge ¥39,156 ¥38,780
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥63,204
Monthly average ¥5,267
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.
Mitsuuroko Denki

Single Support Plan

Save ¥205 per year

  • No cancellation fee
Est. monthly cost ¥5,281/mo
Est. annual cost ¥63,375/yr
View rate & plan details
Smart Family Plan Single Support Plan
Basic / minimum charge ¥11,384 ¥11,384
Energy charge ¥39,156 ¥38,951
Fuel cost adjustment, etc. ¥4,806 ¥4,806
Capacity contribution equivalent $0 $0
Renewable energy levy ¥8,234 ¥8,234
Total ¥63,580
Monthly average ¥5,298
¥63,375
Monthly average ¥5,281
  • Because your current provider is set to "Other / not sure", this estimate is based on 九州電力 "スマートファミリープラン". If your actual contract differs, the savings may be higher or lower. Entering your current bill from "Compare more accurately" gives a result closer to your real usage.
  • Your 12-month electricity usage is estimated from the information you entered and the climate of your area, and the electricity cost is calculated for the 12 months starting from the current month.
  • The fuel cost adjustment and power procurement cost adjustment are calculated by applying the unit price for October 2026 across all 12 months. Unit prices are updated to the following month's rate on the last day of each month (or the next business day if it falls on a holiday). The renewable energy levy uses the latest unit price, which is updated every May.
  • The way capacity contributions are reflected, and what they are called, differs by provider. This service always displays them as "capacity contribution equivalent". For plans where the capacity contribution is included in the fuel cost adjustment or power procurement cost adjustment, it is shown together under "Fuel cost adjustment, etc.".
  • The basic / minimum charge, energy charge, fuel cost adjustment and related charges, capacity contribution equivalent, and renewable energy levy are each totalled over 12 months, rounded down to the nearest yen, and those totals form the annual electricity cost.
  • Government subsidies such as electricity cost relief programmes are not included in the results.
  • For areas where the remote-island universal service adjustment rate applies, it is included in the results.
  • For plans whose basic charge is banded by amperage, the calculation uses the unit price for the 30A you selected.
  • All savings and amounts shown are estimates and do not guarantee your actual bill or savings.
  • Whether your current plan has a cancellation or early termination fee, and how much it is, depends on when you signed up and how long you have been contracted. Please check with your current provider before switching.
  • For details of the calculation conditions, please see Terms of Use at the bottom of the page.

Just by choosing, your electricity bill changes.
Electricity that fits your lifestyle.