Electricity & Gas Point-Earning: Split the One-Time Reward From the Monthly Bill Difference

Deep dives Published:2026-05-30 Updated:2026-06-21 15 min read

Split the One-Time High-Value Reward From the Ongoing Monthly Bill Difference

With electricity and gas deregulation in Japan, you can now choose your provider freely, regardless of region. Electricity/gas point-earning, alongside budget SIMs, is a deal that pays off twice. The first layer is a high-value reward worth ¥3,000–15,000 in one shot for routing your switch to a new electricity/gas provider through a point site. The second is the fixed-cost saving as the plan itself gets cheaper and ecosystem points keep accruing on your monthly bill. The first is a one-time bonus at switch time; the second keeps working every month you stay. They're completely different in nature.

Don't lump them together: "grab the high-value reward in full at switch time, then keep using the cheaper plan" — frame it that way, and the bigger your household's usage, the larger the yearly difference. But high-value offers have conditions, and applying alone doesn't lock them in. On top of that, some plans (like market-linked ones) have prices that fluctuate, so choosing on reward size alone is a no-go. This article organizes electricity/gas point-earning around "split the high-value reward from the fixed-cost saving," "check the offer and cancellation terms," "pick a plan that fits your ecosystem and usage," and "know when to use electricity/gas separately vs. as a bundle." See also the fixed-cost cutting guide and the ecosystem comparison guide.

Breakdown of what you gain from switching

What you gain from switching electricity/gas falls into three: "the high-value routing reward," "monthly bill savings," and "earning ecosystem points." Getting a one-time bonus and an ongoing source of savings and points at once is exactly why this deal is so cost-effective.

EffectHow you gainNature
High-value routing reward¥3,000–10,000 electricity / ¥2,000–5,000 gasOne-time bonus
Monthly bill savingsPlans with cheaper base/usage rates than regional utilitiesLasts the whole contract
Earning ecosystem pointsRakuten Denki / docomo Denki, etc.Your bill becomes a point source
Electricity+gas bundle add-onExtra reward/discount for a bundleOne-time + monthly discount

※ Reward amounts, conditions, and plans vary widely by company and season. Check the latest with each company and on Pointnavi. For how much you save per year, see the fixed-cost cutting guide.

These three differ completely in "when and how much they work," so seeing them separately keeps your judgment from wavering. The high-value routing reward comes only once, at the switch, and it is not confirmed just by applying—it is paid only after you meet reward conditions like supply start plus a set usage period. The monthly bill reduction keeps working the whole time you are contracted, so the more your household uses, the more it adds up over the long run. Earning ecosystem points is a continuing type: if you choose a company that fits your ecosystem, the monthly bill itself becomes a source of points. The knack is to estimate the "one-time bonus" and the "ongoing monthly saving and earning" as separate effects, rather than simply adding them together. The high-value reward in particular looks flashy, but if you cancel before meeting the conditions it becomes zero, and if a cancellation fee is deducted it can even backfire. Reward amounts, reward conditions, and rate plans vary greatly by company and timing, so before contracting, always confirm the latest with each company's official site and Pointnavi.

Think of the "one-time high reward" and "monthly bill difference" separately

The single most important thing in electricity/gas point-earning is separating these two by nature. The high-value reward is a bonus you can take only once, at switch time. The bill difference keeps working every month for as long as you stay. Conflate them and you slide into the inefficiency of "switching constantly for the rewards."

  • Take the high-value reward in full at switch time: It's a one-time bonus, so once you decide to switch, route through the best-condition site and don't leave any on the table. An electricity+gas bundle can earn an add-on too.
  • The bill difference compounds "the longer you use it": The gap in monthly base and usage rates matters more the larger your household's usage. Over the long run, a bill that keeps dropping beats a one-off reward.
  • Switching constantly for rewards backfires: Short-term cancellations fail the conditions, so the reward easily drops to zero, and plans with a lock-in may charge a cancellation fee. As a rule, switch once to a plan you can keep using.
  • Matched to your ecosystem, your bill becomes a point source: With a company that fits your ecosystem, your monthly electricity/gas bill itself becomes a source of ecosystem points. Ecosystem comparison guide.

Check the plan's substance and choose accordingly

Choose a company on reward amount alone and the plan's substance may not suit you, leaving you worse off. Precisely because it's something you use every month, pick it by how the plan works and your own usage and home setup.

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Plans come in fixed-rate and market-linked types, and a market-linked plan can rise far more than expected when fuel costs or market prices spike. Don't choose on reward size or temporary cheapness alone — always confirm whether it's fixed-rate or market-linked. Also watch for contract lock-ins and cancellation fees, and note that the best plan changes with your home setup (all-electric vs. electricity+gas). A utility plan affects your household budget for a long time, so run each company's simulation against your own usage, and if anything is unclear, confirm the details before signing up. Not choosing a plan you're unsure about just for the reward is the premise.

When to use electricity/gas "separately" vs. as a "bundle"

You can switch electricity and gas independently, or sign up for a bundle with the same company. Which is better depends on your home's equipment and usage, so knowing your options helps you maximize rewards without waste. Use each company's simulation to find the best combination.

Switch typeFeaturesBest for
Electricity+gas bundleBundle discount + offer add-on availableHouseholds that use both electricity and gas
Electricity onlyTake the electricity offer/bill differenceAll-electric homes / high electricity usage
Gas onlyTake the gas offer/bill differenceCity gas service areas
Separate companies for eachPick the best-condition company for eachWhen separate deals are better than a bundle

Households that use both electricity and gas can aim for bundle discounts and offer add-ons with a bundle contract, but all-electric homes may do better switching only electricity, and city gas areas may be better off switching only gas. A bundle isn't always the better deal — getting each from the best-condition company separately can sometimes be cheaper. Compare single vs. bundle with each company's simulation based on your home's equipment and usage, and choose the combination that wins on both routing reward and bill difference. Note also that whether gas can be switched depends on whether it's city gas or LPG, and whether you're renting.

Before deciding solo or set, the view to grasp is comparing "the amount of the set discount" and "the total of the rate difference and offer rewards you could each get separately" on the same footing. Even with a set discount, there are cases where contracting electricity and gas separately, each with the company offering the best terms, comes out ahead on the total of rate difference and routing reward. Conversely, some people value the ease of a set that unifies the procedure and payment into one. Which is correct depends on your home's equipment and usage, so be sure to plug your usage into each company's simulation and compare the totals under both the solo and set patterns. Furthermore, for gas, whether switching is even possible changes by city gas versus propane (LP gas) and owned home versus rental. For a rental, electricity can often be switched if you contract it yourself, while gas may not be possible depending on the property or area, so confirming with the management company or each company's coverage area before applying prevents the wasted effort of "couldn't switch" after applying.

Step-by-step: making the switch

  1. ① Narrow to a plan that fits your ecosystem and usageBeyond reward amount, pick a plan you can keep using by fixed-rate vs. market-linked, lock-in, ecosystem fit, and home setup. Ecosystem comparison guide.
  2. ② Compare amounts and conditions on a point siteCheck each company's electricity/gas offer amount and conditions (supply start, usage period) on Pointnavi. Gauge whether you can meet them.
  3. ③ Apply via the best-condition siteHave your meter-reading slip (current contract info) on hand, click through the site, then apply online in about 10 minutes. Consider an electricity+gas bundle.
  4. ④ Wait for the switch to completeNo construction needed; with a smart meter, no attendance either. It switches over in 1–2 months. The blackout risk is unchanged.
  5. ⑤ Set up ecosystem points + card paymentPay the bill with your ecosystem's credit card to double-dip on payment too. Consolidate after payout. Double-dipping guide · expiry-prevention guide.

What decides the outcome in this procedure is judging the reward conditions in ② and the "keep using it" view from ④ onward. The higher-value the offer, the more likely it carries reward conditions like "supply start plus a set usage period," and it is not confirmed at the moment you submit the application form. So at the ② stage, looking ahead to whether you can use it through that condition period without trouble (no moving plans, no urge to switch companies again soon) keeps you from missing the hard-won reward. After switching, set the bill to your ecosystem's credit-card payment to stack the payment reward and ecosystem points, and gather the granted points into your main ecosystem and use them up within their term—making all this one set lets both the one-time reward and the ongoing monthly saving and earning work without waste. Also, each company's reward amounts, reward conditions, and rate plans change with timing, so always confirm the latest right before applying, and step through the routing link again before proceeding to the application form. See also expiry-prevention guide.

Common mistakes and how to avoid them

  • Not checking conditions and settling for just applying: High-value offers usually require supply start plus a set usage period, not just applying. Cancel before you meet it and the reward is zero. Check the conditions before applying.
  • Signing up without knowing it's market-linked: A market-linked plan can become pricey during spikes. Always confirm fixed-rate vs. market-linked before choosing.
  • Repeating short-term cancellations for rewards: Plans with a lock-in may charge a cancellation fee. As a rule, switch once to a plan you can keep using.
  • Not fitting your home setup: The best plan differs for all-electric vs. electricity+gas. Simulate by usage and home setup before choosing.
  • Forgetting to route: Go straight to the application form and routing cashback is zero. Re-click the point site right before applying. Pointnavi.

Prep to have ready before switching

  • Check offer and cancellation terms: Know the conditions that lock in the reward (supply start, usage period) and whether there's a contract lock-in or cancellation fee — before applying.
  • Meter-reading slip (current contract info): Have on hand a meter slip or your account page showing your current contract info. It makes the application smooth.
  • Plan simulation: Check fixed-rate vs. market-linked and whether it fits your usage and home setup with each company's simulation.
  • Compare on Pointnavi before routing: Compare candidate companies' amounts and conditions on Pointnavi in advance, and pick the best-condition route.
  • Ecosystem card and a point consolidation spot: Set up paying the bill with your ecosystem's card to take payment cashback too, and decide where you'll consolidate points.
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The core of electricity/gas point-earning is thinking of the one-time high-value reward and the ongoing monthly bill difference separately. Grab the high-value reward in full at switch time, then keep using the cheaper plan — and the bigger your household's usage, the larger the yearly difference. But high-value offers have conditions, and canceling before you meet them means zero reward. Always confirm whether the plan is fixed-rate or market-linked, and watch for lock-ins, cancellation fees, and your home setup. The rule is not to choose a plan you're unsure about just for the reward.

Mini glossary for electricity/gas point-earning

Terms that come up in offers and throughout this article. Plans and regulations change over time, so check each company's official site for the latest.

TermMeaning
New electricity / new gas providersElectricity and gas companies that entered the market after deregulation. Often offer cheaper plans than regional utilities and ecosystem tie-ins.
Fixed-rate planA plan with a fixed unit price. Less exposed to market price spikes.
Market-linked planA plan where the unit price fluctuates with market prices. Costs can rise sharply when prices spike.
Bundle discountA discount available when you sign up for both electricity and gas with the same company.
Offer conditionsThe conditions for the reward to lock in (supply start, a set usage period, etc.). Cancel before meeting them and the reward is zero.
Meter-reading slipA document showing your current contract and usage. Having it on hand makes the switch application smoother.
RoutingClicking through a point site's link before proceeding to the application. Without routing, no reward is earned.

FAQ

Will switching cause a blackout or need construction?
No. The transmission grid is the same, so the blackout risk is unchanged and no construction is generally needed. With a smart meter, no attendance is needed either, and it switches over in 1–2 months. Only your provider changes — the quality and stability of the electricity/gas itself stay the same.
How much do you save?
A one-time high-value reward of ¥3,000–15,000 for routing through a point site, plus a monthly bill lower than the regional utility, plus ecosystem points. The reward is a one-time bonus; the bill saving lasts the whole contract, and the bigger your household's usage, the larger the yearly effect. Split the two: take the reward in full at switch time, then keep using the cheaper plan.
When and how does the reward lock in?
High-value offers usually require supply start plus a set usage period, not just applying, with payout mainly after supply start. Cancel before meeting the condition and the reward drops to zero. Always check the conditions (supply start, usage period) and any contract lock-in or cancellation fee before applying, and don't cancel during the condition period.
Is a market-linked plan OK to choose?
It's an option if you understand how it works, but a market-linked plan can rise far more than expected when fuel costs or market prices spike. Don't choose on reward size or temporary cheapness alone — always confirm fixed-rate vs. market-linked. Since it affects your budget long-term, run each company's simulation against your own usage, and if anything is unclear, confirm the details before signing up.
Should I bundle electricity and gas, or keep them separate?
It depends on your home's equipment and usage. Households using both can aim for bundle discounts and offer add-ons, but all-electric homes may do better with electricity only, and city gas areas may be better off with gas only. A bundle isn't always the better deal — getting each from the best-condition company separately can be cheaper. Use each company's simulation to find the combination that wins on both routing reward and bill difference.
Can renters switch too?
Electricity is generally possible if you hold the contract yourself. Gas may not be switchable depending on the property and area, so check with the management company. Things to watch: don't cancel before meeting the conditions (supply start, usage period), confirm whether the plan is fixed-rate or market-linked, and don't forget to route right before applying (no routing means zero cashback).
Do you earn points on bill payments too?
Yes. Pay your monthly electricity/gas bill with your ecosystem's credit card and payment cashback accrues on the bill. With an ecosystem-linked company, the bill itself becomes a source of ecosystem points. Stack the switch-time routing reward (one-time) with monthly payment cashback and ecosystem points (ongoing). Consolidate your points to one place and use them before they expire.
What should I watch out for?
Separate the high-value reward from the monthly bill difference in your thinking. Don't cancel a high-value offer before meeting the conditions (supply start, usage period) — doing so means zero reward. Always confirm whether the plan is fixed-rate or market-linked, and watch for lock-ins, cancellation fees, and your home setup. Compare single vs. bundle by usage. Don't forget to route right before applying, and use earned points before they expire.
Should I switch even when I have moving plans?
If you have moving plans, first confirm whether you can meet the high-value offer's reward conditions (supply start plus a set usage period) before you move. Cancelling or relocating during the condition period can make the reward zero, and a plan with a lock-in can incur a cancellation fee. If you are moving soon, not forcing a switch now and instead switching after you settle into your new place sometimes means fewer missed rewards. Conversely, moving itself is also a timing to review your electricity and gas contract, so when newly contracting at your new place, stepping through the routing link to take the high-value reward and choosing a plan you can keep using is also an effective approach. In any case, always confirm the reward conditions and the contract lock-in and cancellation fee before applying, and judge after seeing the latest terms on each company's official site and Pointnavi.
Could switching make it more expensive than now, or cause a loss?
The possibility is not zero, so it is important not to choose by the size of the reward alone. The main things to watch are: ① a market-linked plan can rise more than expected when fuel costs or market prices spike; ② cancelling before meeting a high-value offer's reward conditions (supply start, usage period) makes the reward zero; ③ a plan with a contract lock-in can incur a cancellation fee on short-term cancellation; ④ a low-usage household or a different equipment setup may not see as much rate difference as expected. These can be prevented in advance. Always confirm whether it is a fixed unit price or market-linked, plug your usage into each company's rate simulation, and contract only after seeing whether it is truly worthwhile on both the rate difference and the reward. A rate plan affects your household budget for a long time, so if you have concerns, examine the details well, and as a basic, do not choose a plan you have doubts about just for the reward.

This article was written from publicly available information on each point site as of 2026-06-21. Cashback rates, campaign terms, and redemption rules can change without notice — always check each site's official page for the latest. This site uses each point site's referral program, but going through a referral link never changes the rate you receive.