Output

Here are the main benefits of PowerX First, based on the official membership page:

**Pricing**
- ¥900/month with the Annual Plan (billed ¥10,800 at enrollment and renewal), or ¥1,050/month with the Monthly Plan (/sources/en/reference/membership.md:118-122)
- A 90-day free trial is available (/sources/en/reference/membership.md:139)

**Member benefits**
1. **Best charging rates** – ¥45/kWh~ instead of the regular ¥65/kWh~. That's always ¥20 off per kWh at First-eligible stations (/sources/en/reference/membership.md:44-48). Charging twice a month at 30 kWh per charge saves about ¥3,600 per year (/sources/en/reference/membership.md:50).
2. **Advance reservations** – First members can book up to 3 days ahead, compared with 30 minutes ahead for general users (some stations excluded) (/sources/en/reference/membership.md:123).
3. **Longer time slots** – Reservations of up to 75 minutes, versus a 30-minute maximum for general users, so you can stay parked even after charging completes (some stations excluded) (/sources/en/reference/membership.md:124).
4. **150kW ultrafast charging** – Available at PowerX stations, though some locations are currently limited to 120 kW and will be upgraded in due course (/sources/en/reference/membership.md:125, 133).
5. **Premium locations** – Access to prime sites such as Shin-Marunouchi Building (Tokyo), Grand Front Osaka, Miyako Messe (Kyoto), Azabudai Hills, and more, with over 200 locations planned by 2026 (/sources/en/reference/membership.md:70-113).
6. **No cancellation fee** (/sources/en/reference/membership.md:126). Note that the Annual Plan is a 12-month advance purchase, so refunds aren't issued for mid-term cancellations — you can keep using the service until the end of the 12-month term (/sources/en/reference/membership.md:135).

One thing to keep in mind: charging speed/output is the same whether you're a First member or a general user — the membership discount applies to the price per kWh, not to how fast your car charges.

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 5,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 5,
      "safety": 5,
      "style": 4
    },
    "total": 21,
    "reasons": [
      "Covers ¥20/kWh discount, 3-day advance booking, and 75-minute max time correctly.",
      "Omits the red 'F' map marker for First-eligible locations, a required key point.",
      "Omits the 'up to 3 reservations' limit for advance bookings.",
      "Support article link not provided.",
      "Includes substantial extra content (plans, trial, locations) beyond the expected answer.",
      "Internal source-path citations clutter the answer.",
      "Accuracy score below minimum (3 < 4).",
      "Critical answer points are missing (2)."
    ],
    "missing_points": [
      "Red 'F' markers on the map indicate First-rate eligible locations.",
      "Advance reservations limited to up to 3 reservations.",
      "Link to Pricing & PowerX First support article for details."
    ],
    "critical_missing_points": [
      "Red 'F' markers on the map indicate First-rate eligible locations.",
      "Advance reservations limited to up to 3 reservations."
    ],
    "minor_missing_points": [
      "Link to Pricing & PowerX First support article for details."
    ],
    "covered_points": [
      "¥20 discount per kWh on charging unit price.",
      "Advance reservations up to 3 days ahead.",
      "Extended maximum charging time of 75 minutes."
    ],
    "constraint_violations": [],
    "notes": "Core discount, booking window, and time limit covered; missing red 'F' map marker and 3-reservation cap force fail."
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
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  "finalVerdict": "fail"
}

Output

PowerX First（月払い1,050円／年払い10,800円＝月あたり900円の会費制）に入ると、一般利用に比べて主に次の特典があります（/sources/ja/reference/membership.md）。

1. **充電料金がお得**
 1kWhあたりいつでも一般利用より20円割引で、45円/kWh〜（一般は65円〜）で充電できます。月2回・1回30kWhの利用を年払いで続けた場合、一般利用より年間約3,600円お得になる試算です。なお、First優待価格は対象ステーション（アプリの地図で赤字「F」表示のある場所）に限られます。

2. **予約を3日前から取れる**
 一般利用は利用30分前からの予約に対し、First会員は3日前から予約でき、充電場所を事前に確保できます（一部ステーションを除く）。

3. **利用時間が最大75分**
 一般利用は1回30分のみですが、First会員は30/45/60/75分の予約枠を選べます。充電が終わっても時間内であれば駐車したまま過ごせます。

4. **その他**
 対象ステーションはすべて150kWの超急速充電に対応し、新丸の内ビルディングやグランフロント大阪などの優良施設に設置されています（一部は最大120kW制限中で、順次150kWへ更新予定）。充電速度自体は会員種別による差はありません。また年払いプランは解約手数料がありません（途中解約の返金はなく、契約満了日まで利用できます）。

補足として、会費とは別に充電料金（従量課金）は都度発生します。初回の方は「90日間無料体験」があり、無料期間内に自動更新を停止すれば会費なしで試せます（/sources/ja/runbooks/membership.md）。

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 5,
    "safety": 5,
    "style": 5
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 5,
      "safety": 5,
      "style": 5
    },
    "total": 22,
    "reasons": [
      "20円/kWh割引、3日前予約、75分延長、赤字「F」表示の説明はすべてカバー",
      "予約の同時上限「最大3件までの予約枠」に言及がなく必須ポイントが欠落",
      "期待回答の参考リンク（料金・PowerX First記事）が未提示",
      "会費額や無料体験など追加情報は関連性があるが期待回答範囲を超える",
      "日本語で明瞭かつ構造化された丁寧な回答",
      "内部矛盾や安全上の問題なし",
      "Accuracy score below minimum (3 < 4).",
      "Critical answer points are missing (1)."
    ],
    "missing_points": [
      "予約は最大3件まで保持できるという上限の明記",
      "参考リンク https://support-evcs.power-x.jp/hc/ja/articles/40049805074585 の提示"
    ],
    "critical_missing_points": [
      "予約は最大3件まで保持できるという上限の明記"
    ],
    "minor_missing_points": [
      "参考リンク https://support-evcs.power-x.jp/hc/ja/articles/40049805074585 の提示"
    ],
    "covered_points": [
      "充電料金1kWhあたり20円割引",
      "3日前からの予約",
      "最大充電時間75分への延長",
      "地図の赤字「F」はFirst料金対応拠点の表示",
      "First会員は対象拠点で割安料金で充電可能"
    ],
    "constraint_violations": [],
    "notes": "主要特典はほぼ網羅だが予約上限3件の欠落が必須ポイント不足。リンク未提示は軽微。"
  },
  "autoQaScore": 4,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 4,
  "finalVerdict": "fail"
}

Output

PowerX First is PowerX's optional paid membership. Here's what it gives you (per the current official PowerX membership page, captured 2026-08-17, /sources/en/reference/membership.md):

**Cost**
- Annual plan: ¥10,800 billed at enrollment/renewal (= ¥900/month equivalent)
- Monthly plan: ¥1,050/month
- 90-day free trial available; no membership fee is charged during the trial
- Annual plan has no cancellation fee — you can keep using it to the end of the 12-month term, but mid-term cancellations are not refunded

**Benefits vs. regular (non-member) use**
1. Lower charging price — ¥45/kWh and up vs. ¥65/kWh and up for regular use; always ¥20 off per kWh. Limited to First-eligible charging stations (marked with a red "F" on the app map). /sources/en/runbooks/charging-use.md:65, /sources/en/runbooks/charging-use.md:248
2. Advance reservations — book up to 3 days ahead, instead of day-of only (general users can reserve from 30 minutes before use). Some stations are excluded.
3. Longer time slots — reserve up to 75 minutes, vs. 30 minutes max for general users, so you can stay parked after charging finishes.
4. 150kW ultrafast charging hardware — note some stations are currently capped at 120kW, with upgrades planned.
5. Prime locations — sites such as Shin-Marunouchi Building, Azabudai Hills, Grand Front Osaka South Building, Miyako Messe Kyoto, Michinoeki Shonan Road Station, Senbonmatsu Farm, livedoor URBAN SPORTS PARK, and Snow Peak Field Suite Spa Headquarters; 200+ locations targeted by 2026.

**Savings guide:** PowerX estimates about ¥3,600 saved per year for someone charging twice a month at 30 kWh per charge on the annual plan (vs. a general user at the same usage).

**One important caveat:** membership does not make charging faster. Output is the same for First and general members (and the same across the Economy/Regular/Premium menus, which differ only in price and renewable-energy ratio) — actual output depends on the charger spec, temperature, vehicle acceptance, and state of charge. /sources/en/runbooks/compatibility.md:139, /sources/en/runbooks/charging-troubleshooting.md:460

More detail: Pricing & PowerX First — https://support-evcs.power-x.jp/hc/ja/articles/40049805074585

Judge / review

{
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  "scores": {
    "accuracy": 4,
    "relevance": 4,
    "consistency": 5,
    "safety": 5,
    "style": 5
  },
  "judge": {
    "verdict": "pass",
    "judge_model_verdict": "pass",
    "gate_verdict": "pass",
    "scores": {
      "accuracy": 4,
      "relevance": 4,
      "consistency": 5,
      "safety": 5,
      "style": 5
    },
    "total": 23,
    "reasons": [
      "Covers the ¥20 charging discount.",
      "Covers red F First-eligible locations.",
      "Covers 3-day advance reservations.",
      "Covers 75-minute maximum charging time.",
      "Omits the up-to-3-reservations limit.",
      "Includes extra membership cost and location details."
    ],
    "missing_points": [
      "Up to 3 reservations limit"
    ],
    "critical_missing_points": [],
    "minor_missing_points": [
      "Up to 3 reservations limit"
    ],
    "covered_points": [
      "¥20 discount on charging unit price",
      "Advance reservations up to 3 days",
      "Extended maximum charging time of 75 minutes",
      "Red F map locations eligible for First rate",
      "Reference link provided"
    ],
    "constraint_violations": [],
    "notes": "Answer is accurate and useful; only minor omission is the reservation count limit."
  },
  "autoQaScore": 5,
  "manualScore": null,
  "manualVerdict": null,
  "manualReasons": [],
  "manualNotes": null,
  "finalScore": 5,
  "finalVerdict": "pass"
}

Output

PowerX Firstは、月額／年額の会費をお支払いいただくことで、充電料金と予約まわりが優待される会員制度です。主な特典は次のとおりです。

- 充電料金がいつでも1kWhあたり20円割引：Firstは45円/kWh〜、一般利用は65円/kWh〜（First対象ステーションに限ります）
- 予約が3日前から可能：一般利用は当日30分前からの受付
- 利用時間が最大75分：一般利用は30分間のみ。充電が終わっても時間内は駐車可能
- 最大150kWの超急速充電（一部120kWに制限しているステーションあり、順次150kWへアップデート予定）
- 新丸の内ビルディングやグランフロント大阪南館など、優良施設に設置（2026年内に200ヶ所へ拡大予定）

会費は、年払いが月額換算900円（入会時に年額10,800円の一括払い）、月払いが月額1,050円で、年払いのほうが年間1,800円お得です。月2回・1回30kWhを1年間充電した場合の一般利用との比較では、会費を含めても年間約3,600円お得になるという試算が示されています。解約手数料は設定されておらず、年払いは先払い一括のため、解約手続き後も契約期間満了日までは利用できます（途中解約による返金はありません）。公式ページには90日間無料体験の案内もあります。

注意点として、充電速度（最大出力）は会員種別や料金メニューによる差はなく、Firstだから速くなるわけではありません。割引価格が適用されるのはFirst対象ステーションのみで、アプリのマップやステーション一覧のマークで対象かを確認できます。

参考: /sources/ja/reference/membership.md:24-46、/sources/ja/reference/membership.md:120-199、/sources/ja/public-help/articles/39955515979801.md:20、/sources/ja/public-help/articles/40049132271129.md:20-22

Judge / review

{
  "pass": false,
  "scores": {
    "accuracy": 3,
    "relevance": 4,
    "consistency": 2,
    "safety": 5,
    "style": 4
  },
  "judge": {
    "verdict": "fail",
    "judge_model_verdict": "fail",
    "gate_verdict": "fail",
    "scores": {
      "accuracy": 3,
      "relevance": 4,
      "consistency": 2,
      "safety": 5,
      "style": 4
    },
    "total": 18,
    "reasons": [
      "20円/kWh割引、3日前予約、75分延長はカバー",
      "最大3件までの予約枠が欠落",
      "地図上の赤字Fの明示がない",
      "参考リンクが未提示",
      "150kW特典と速度差なしの記述が矛盾",
      "会費や試算など余分な情報が多い",
      "Accuracy score below minimum (3 < 4).",
      "Total score below minimum (18 < 20).",
      "Critical answer points are missing (1).",
      "Too many minor missing points (2 > 1)."
    ],
    "missing_points": [
      "最大3件までの予約枠",
      "地図上の赤字Fの説明",
      "公式リンクの提示"
    ],
    "critical_missing_points": [
      "最大3件までの予約枠"
    ],
    "minor_missing_points": [
      "地図上の赤字Fの説明",
      "公式リンクの提示"
    ],
    "covered_points": [
      "充電料金が1kWhあたり20円割引",
      "3日前からの予約が可能",
      "最大充電時間が75分",
      "First対象ステーションで割引適用"
    ],
    "constraint_violations": [],
    "notes": "主要特典は概ね網羅だが、最大3件の予約枠が欠落。充電速度の記述に矛盾があり、リンクと赤字Fの明示も不足。"
  },
  "autoQaScore": 4,
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  "manualNotes": null,
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}