Smart Lease is also available for those who want to install an EcoCute to heat water at a bargain price.

What is Kyuden Smart Lease?

IHクッキングヒーター、エコキュート、太陽光発電、蓄電池等のオール電化機器をリースでご利用いただけるサービスです。

What are the benefits of replacing an electric water heater?

By using an EcoCute, you can save so much on your utility bills!

Comparison of utility costs between electric water heaters and EcoCute

Model case of a four-person family

エコキュートにすると

ひと月なんと！

約 6,400円（税込）/月

もおトクに！

エコキュートにすると

ひと月なんと！

約 6,400円（税込）/月

もおトクに！

Click here for calculation conditions etc.

電気温水器とエコキュートの給湯に要する光熱費比較モデルケース（4人家族の場合）

・Electric water heater/usage 460kWh/month

・Ecocute/Usage: 140kWh/month

  • Hot water load: 18GJ/year monthly average

試算条件

・電気温水器、エコキュート
電気温水器使用
[電気]九州電力「電化でナイト・セレクト」料金(2024年4月1日実施)、使用量（夜間）460kWh/月
エコキュート使用
[電気]九州電力「電化でナイト・セレクト」料金(2024年4月1日実施)、使用量（夜間）140kWh/月

  1. The calculation does not include Base charge, but includes the amount equivalent to consumption tax, Adjustments for fuel costs, etc. (July 2025: 1.54 yen/kWh), and Renewable Energy Generation Promotion Surcharge (FY2025: 3.98 yen/kWh).
  2. This information is based on estimated conditions only, and actual utility costs will vary depending on your current Rate Plan, region, equipment efficiency, and usage conditions.
  3. This does not include the amount of electricity used or the fees for using electric hot water heaters or eco-cute to boil water during the day.
  4. This comparison is for utility costs only; initial costs and replacement costs for the equipment itself will be charged separately.
  5. Since there is no upper limit on fuel cost adjustments for All Electric Nighttime Select, if fuel prices are rising, the cost may be higher depending on your current Rate Plan.

Contact us

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お電話からのお問い合わせ

Service Area

Fukuoka Prefecture, Saga Prefecture, Nagasaki Prefecture, Oita Prefecture, Kumamoto Prefecture, Miyazaki Prefecture, Kagoshima Prefecture (excluding remote islands)

Other proposal examples
Smart lease proposal

九電スマートリースでは、お客さまのお悩みやご要望に応じて様々なご提案が可能です。ここでは代表的な事例をご紹介します。

I want to go all-electric

I want to go all-electric to consolidate my utility bills.

#IH cooking heater #EcoCute

I want to reduce my monthly electricity bill

I want to install solar power in my home to reduce my monthly electricity bills.

#Solar power generation #Storage battery

Ten years have passed since the installation of the solar power generation system, but we want to use the generated electricity effectively.

I generate electricity from solar panels, but the selling price has fallen so I would like to use it at home instead of selling it.

#Batteries