Solar Savings & ROI Estimator
Show homeowners their 10-year savings and break-even point during the sales conversation
Why people pay for this
It turns a clunky sales conversation into a polished financial presentation that homeowners trust — and reps who show real numbers close more deals.
Target Audience
Residential solar sales reps, independent solar installers, solar energy consultants
Suggested Price
$49/year
Est. Build Time
3-5 days
What This Is
A tablet-friendly sales presentation tool for solar installers. Input system size, cost, utility bill, and local incentives — and generate a clean financial summary showing the federal tax credit, 10-year cumulative savings, monthly payment estimates, and break-even year. Export as a one-page PDF proposal. Designed for in-home sales conversations where numbers close deals.
Solar sales reps need to show homeowners that solar makes financial sense — right there at the kitchen table. Enterprise tools like Aurora are expensive and complex. Back-of-napkin math looks unprofessional. A clean, branded calculator that produces a one-page financial summary during the conversation increases closing rates because the homeowner can see the numbers immediately instead of waiting for a "follow-up proposal."
How to Make Yours Different
A "Presentation Mode" optimized for showing on a tablet during an in-home visit — large fonts, clean charts, professional appearance
Current federal ITC (Investment Tax Credit) rates built in with easy updates as incentives change, plus a field for state/local incentives
A 10-year savings chart that visually shows cumulative savings growing over time — this is the visual that closes deals
PDF export that creates a branded one-page proposal the homeowner can review after the rep leaves
The Starter Prompt
Copy this into your vibe coding tool. Customize the [bracketed sections] with your industry knowledge.
Build me a "Solar Savings & ROI Estimator" as a single-page web app for solar sales conversations. Here's what I need: **Core Features:** - Input fields: system size (kW), total system cost, average monthly electric bill, local electric rate ($/kWh), annual utility rate increase assumption (default 3%), and panel degradation rate (default 0.5%/year) - Federal ITC section: automatically calculate the tax credit at [CURRENT RATE, e.g., 30%]. Include a field for additional state/local incentives - Financial outputs: - Net system cost after incentives - Estimated monthly savings (year 1) - Break-even year - 10-year cumulative savings - 25-year estimated lifetime savings - Monthly payment estimate (if financed, with configurable loan terms) - A 10-year savings chart (bar or line chart) showing cumulative savings vs. system cost - "Presentation Mode" toggle that hides inputs and shows only the results in a clean, full-screen layout for showing customers - PDF export: a one-page branded proposal with all calculations, the chart, and the installer's business info **Design:** - High contrast, clean design optimized for tablet presentation in bright rooms - The savings chart should be prominent and visually compelling — this is what sells - Professional, trustworthy aesthetic (blues and whites, clean typography) - Presentation Mode should look like a polished slide, not a calculator **Technical:** - Single HTML file with embedded CSS and JavaScript - Use Chart.js for the savings chart - Use jsPDF for the PDF export - All settings in localStorage - No external APIs — must work at homes with poor WiFi **Solar-specific:** - [Set your local utility's tiered pricing structure if applicable] - [Configure default system sizes and costs for your typical installations] - [Add your company branding for the PDF export: name, logo placeholder, phone, email, license number] - [Include any state-specific incentives or rebates in your area]
Got the prompt? You're halfway there.
Build it, test it on a real scenario, then come back to list it.
Pricing Guidance
$49/year
Annual subscription. Utility rates, rebates, and federal incentives change yearly, and you can keep calculations current.
One additional deal per month ($2,000-5,000+ commission) pays for years of subscriptions. Annual updates let you keep utility rates, incentives, and ITC percentages current with regulatory changes.
AppGild takes a flat 20% commission. Monthly or annual subscriptions give your buyers ongoing value and give you recurring revenue, a win for everyone.
Getting Started
Gather your local utility rates, net metering policies, and state incentives
Calculate the current federal ITC rate and any other federal incentives
Build the first version and run it through 3 recent proposals for accuracy
Use it at your next in-home appointment and gauge the homeowner's reaction to the visual presentation
Get feedback from other solar reps on what numbers they need to show
List on AppGild targeting solar sales professionals
Ready to build this?
Copy the prompt, open your building tool, and start. When it's ready, list it on AppGild and start reaching buyers.