Useful first screen
The visitor gets the solver immediately, with examples and result states that reduce friction.
AI Lead Magnets
EV Charging ROI Calculator Starter Kit
A complete static HTML, CSS, and JavaScript starter kit for a commercial EV charging ROI lead magnet. Visitors enter charger count, utilization, energy cost, pricing, fees, maintenance, incentives, and readiness answers, then get charging revenue, net annual value, payback, five-year ROI, and next steps.
Screenshots
Preview the finished starter kit
Public previews are shown as screenshots so the paid static files are not exposed as a downloadable live demo.
Why it exists
A practical lead magnet for EV charging project planning
Launch an embeddable calculator that helps visitors estimate charging sessions, revenue, energy cost, operating fees, incentives, payback, five-year ROI, and readiness gaps before they request a site review or quote.
Static and portable
The generated site can run on ordinary static hosting, with no database or server application required.
Launch-ready trust pages
Privacy, terms, contact, sitemap, robots, manifest, and service worker files are already included.
Features
What the package includes
Site features
- Interactive EV charging ROI calculator with deterministic local estimates.
- Inputs for charger count, installed project cost, sessions per port per day, kWh per session, charging price, electricity cost, fees, maintenance, optional incentives, and optional site-spend lift.
- Outputs for sessions per month, kWh delivered, charging revenue, energy cost, operating cost, annual net value, net initial cost, five-year net, five-year ROI, and payback estimate.
- Readiness categories for site demand, infrastructure, pricing model, operations, and measurement plan.
- Tool-only embed.html output that removes the homepage hero, FAQ, footer, and supporting content, with an optional link back to the full site.
- Optional public homepage panel with embed.html link, iframe code, and copy buttons.
- Optional result form that can post estimate details to a buyer form provider.
- Copy and download actions for a local text ROI brief.
- Installable app files, privacy, terms, contact, robots, sitemap, third-party notices, and customizer metadata.
Buyer files
- Editable template source with searchable placeholder tokens.
- Metadata-driven customizer fields for brand, domain, SEO text, currency symbol, default theme, colors, lead form settings, embed output, embed backlink, public embed code, optional snippets, ad spots, and app settings.
- Customizer-ready ZIP structure for form-based setup.
- Full-page homepage plus optional tool-only embed page.
- Small HTML start file, versioned online setup guide, MIT license, and third-party notices.
Launch workflow
Customize, review, upload
Download the starter kit ZIP from Gumroad or your purchase receipt.
Use the browser customizer to fill in your site details and choose the default theme, then choose whether to include embed.html, its full-site link, and a public embed-code panel.
Connect a form endpoint if you want completed estimates to create leads.
Review the generated homepage, embed page, privacy, terms, contact, sitemap, and manifest files.
Upload the generated static files to your host and test the live site or iframe embed.
Editable details
Built to be renamed and recolored
The placeholder metadata powers the browser customizer, so the package can be customized through a form instead of editing every page by hand.
- Brand name, mark, tagline, domain, contact method, and canonical URL.
- SEO title, meta description, Open Graph title, and Open Graph description.
- Headline, calculator intro, result caveat, currency symbol, and ROI-brief button text.
- Default theme plus dark and light theme highlight colors with contrast validation.
- Optional lead form action URL, method, consent copy, form labels, and success message.
- Optional tool-only embed page output, optional embed backlink, and optional public embed-code panel.
- Optional analytics, verification, custom CSS, body scripts, and homepage ad placements.
- PWA name, short name, description, icon title, and cache prefix.
Comparison
Where this kit fits
This starter kit
Best for a focused EV charging ROI lead magnet, static hosting, optional lead capture, quick customization, and embeddable tool-only output.
Generic calculator template
Better when you only need basic math fields, but it usually lacks charging-specific assumptions, readiness scoring, embed output, PWA behavior, metadata, legal pages, and launch docs.
Custom development
Best when you need custom tariff data, utility integrations, charger-network APIs, accounts, CRM automation, or a fully custom product roadmap.
FAQ
EV Charging ROI Calculator Starter Kit questions
Is this a finished website or a starter kit?
It is a starter kit. You get working source files, customization metadata, license, third-party notices, and an HTML start file that links to versioned setup docs for the companion website customizer.
What makes it embeddable?
The package includes an optional embed.html output. It removes the full-page hero, FAQ, footer, and supporting sections so the calculator can be used as a focused iframe or embedded landing-page tool. The generated embed page uses the selected default theme and accent colors, and separate customizer toggles can show a small backlink inside embed.html and a public embed-code panel on the full homepage.
Does the calculator call an AI API?
No. The default calculator uses deterministic browser JavaScript. It does not inspect a property, utility bill, electrical system, or charger network automatically.
Does it guarantee ROI or payback?
No. The result is a planning estimate based on visitor inputs, not a guarantee of utilization, energy cost, tariffs, incentives, revenue, payback, uptime, compliance, leads, or operational results.
How does lead capture work?
Lead capture is optional. If enabled, the generated form posts visitor contact details, readiness score, estimate fields, and calculator report to the configured HTTPS form endpoint.
What does static website mean?
A static website is made from normal files such as HTML, CSS, JavaScript, images, icons, robots.txt, and sitemap.xml. It does not need WordPress, a database, or a custom server app.
What is a PWA?
A PWA, or Progressive Web App, is a website that can feel more app-like after it is hosted correctly. This kit includes the manifest, icons, and service worker files used for install prompts and offline-friendly caching in supported browsers.
Will the app install from a downloaded file?
No. Browsers do not install PWAs from file:// pages. You can preview the generated HTML locally, but install behavior and service worker caching should be tested from a local static server or an HTTPS host.
Can it be used with ads or affiliate links?
Yes, but ad placement and affiliate copy are your responsibility. The included notes explain policy-safe placement principles and clear disclosure language.
Can I modify or use it commercially?
The included code is MIT licensed, so you can modify it, build on it, or use it commercially. Keep your own marketplace rules and third-party obligations in mind.