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World savingMedium1 to 2 weekendsUnder $100Web and mobileWorld saving

Energy Bill Coach

Snap your power bill and see your usage trend with simple saving ideas.

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The idea

Households upload a photo or PDF of each utility bill and AI pulls out usage and cost. The app charts month over month changes and suggests practical low-cost steps to try. Lower bills and lower energy use go together.

Who it is for
Renters and homeowners watching their power bills
How it makes money
Freemium, paid plan for multiple homes or landlords
Suggested stack
Next.js web app plus Expo mobile app, shared Supabase backend
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web and mobile app called Energy Bill Coach. Create signup, a home profile (home type, size, heating type, number of people) and an upload screen for bill photos or PDFs.

PROMPT 2 OF 3

Send each uploaded bill to an AI model to extract billing period, kWh used, gas usage if present and total cost into structured fields the user can correct. Show a chart of usage and cost by month and highlight the biggest jumps compared to the same month last year.

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PROMPT 3 OF 3

Generate three plain language saving ideas each month based on the home profile and trend, with a checkbox to mark tried. Add a monthly email summary and a Stripe paid plan for landlords tracking several units.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Energy Bill CoachEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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