SustainCalc

Instantly simulate and visualize ROI for green initiatives to win over profit-focused SMB clients.

Score: 7.8/10AustraliaMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Small-business owners in climatetech struggle to prove ROI on green initiatives to skeptical SMB clients who prioritize short-term profits.

Solution

SustainCalc lets climatetech owners input initiative costs, energy savings, and incentives to generate customized ROI projections and charts. It creates shareable client reports proving payback periods and long-term savings. Clients see hard numbers on profitability, turning skepticism into buys.

Target Audience

Small-business owners in climatetech selling green initiatives to SMB clients

Differentiator

Pre-loaded climatetech benchmarks and incentive databases tailored for SMB green projects, unlike generic calculators.

Brand Voice

professional/supportive

Features

ROI Simulator

must-have20h

Interactive calculator for energy/cost savings projections

Custom Report Generator

must-have15h

PDF exports with charts and payback analysis

Benchmark Library

must-have10h

Pre-built data for solar, efficiency upgrades, etc.

Shareable Links

must-have12h

Client-facing interactive dashboards

Template Library

must-have8h

Save and reuse project templates

Incentive Finder

nice-to-have15h

Auto-pull local grants/rebates

Scenario Comparison

nice-to-have10h

Side-by-side what-if analyses

Email Integration

nice-to-have8h

One-click report sending

Total Build Time: 98 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
nametextYes
created_attimestampNo

projects

ColumnTypeNullable
iduuidNo
user_iduuidNo
nametextNo
datajsonbNo
created_attimestampNo

Relationships:

  • user_id references users(id)

reports

ColumnTypeNullable
iduuidNo
project_iduuidNo
share_tokentextNo
viewsintNo
created_attimestampNo

Relationships:

  • project_id references projects(id)

benchmarks

ColumnTypeNullable
iduuidNo
categorytextNo
datajsonbNo

API Endpoints

POST
/api/projects

Create new project

🔒 Auth Required
GET
/api/projects/:id

Fetch project data

🔒 Auth Required
POST
/api/reports

Generate shareable report

🔒 Auth Required
GET
/api/reports/:token

Public report view

GET
/api/benchmarks

List benchmarks

Tech Stack

Frontend
Next.js 14 + Tailwind + Recharts
Backend
Next.js API routes
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Supabase Storage for PDFsResend for emails

Build Timeline

Week 1: Core auth and DB setup

25h
  • User auth
  • Basic DB schema
  • Project CRUD

Week 2: Simulator engine

30h
  • ROI calculator UI
  • Benchmark integration

Week 3: Reporting and sharing

25h
  • PDF gen
  • Share links

Week 4: Polish and payments

20h
  • Stripe integration
  • Landing page

Week 5: Testing and nice-to-haves

15h
  • Incentive finder
  • Scenario tool
Total Timeline: 5 weeks • 120 hours

Pricing Tiers

Free

$0/mo

No custom benchmarks

  • 3 projects
  • Basic reports

Pro

$30/mo
  • Unlimited projects
  • Custom templates
  • Share analytics

Enterprise

$99/mo
  • Team accounts
  • White-label reports
  • API access

Revenue Projections

MonthUsersConversionMRRARR
Month 15010%$150$1,800
Month 630015%$1,350$16,200

Unit Economics

$40
CAC
$360
LTV
5%
Churn
92%
Margin
LTV:CAC Ratio: 9.0xExcellent!

Landing Page Copy

Prove Green ROI in Minutes – Close More Climatetech Deals

Custom simulators and reports show SMB clients exact payback and profits from sustainability.

Feature Highlights

Interactive ROI projections
Climatetech benchmarks
Shareable client reports
Payback charts
Incentive matcher

Social Proof (Placeholders)

"'Closed 3 deals in a week!' – Solar Installer"
"'Skeptical clients now excited.' – Energy Auditor"

First Three Customers

Post in LinkedIn climatetech groups offering free Pro access for feedback; DM 20 solar installers from recent directories; Run $50 LinkedIn ad targeting 'climatetech owner' with demo video.

Launch Channels

Product Huntr/climatetechr/SaaSIndie HackersLinkedIn

SEO Keywords

green roi calculatorprove roi sustainabilityclimatetech roi toolsmb green initiative roi

Competitive Analysis

Project Drawdown

drawdown.org
Free
Strength

Global benchmarks

Weakness

No customization or client reports

Our Advantage

Interactive SMB-focused simulator with sharing

Generic ROI Tools (e.g., CalcXML)

calcxml.com
Free
Strength

Simple calcs

Weakness

No climatetech data

Our Advantage

Tailored benchmarks and reports

🏰 Moat Strategy

Proprietary climatetech benchmark database grows with user data

⏰ Why Now?

Rising SMB green mandates (EU CBAM, US IRA) demand quick ROI proof amid 2024 incentives.

Risks & Mitigation

marketmedium severity

Low adoption if benchmarks outdated

Mitigation

User-submitted updates + quarterly refresh

technicallow severity

PDF gen complexity

Mitigation

Use Puppeteer

executionmedium severity

Slow user acquisition

Mitigation

Pre-launch waitlist

Validation Roadmap

pre-build7 days

Interview 10 climatetech owners

Success: 5 express interest

mvp14 days

Build core simulator, get 3 beta users

Success: Positive feedback + 1 paid

launch7 days

PH launch, track signups

Success: 50 users week 1

Pivot Options

  • Generic ROI for other industries
  • Focus on enterprise climatetech
  • White-label for agencies

Quick Stats

Build Time
120h
Target MRR (6 mo)
$5,000
Market Size
$500.0M
Features
8
Database Tables
4
API Endpoints
5