ClubCarbon

Real-time collaboration for student sustainability clubs with instant carbon impact tracking.

Score: 7.5/10ArgentinaMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Student-led sustainability clubs lack collaboration tools with real-time carbon impact calculators for their climatetech projects.

Solution

ClubCarbon provides a shared workspace where clubs can plan climatetech projects, assign tasks, and see live carbon savings calculations as they update plans. It integrates real-time calculators for energy, transport, and waste impacts directly into kanban boards. Clubs collaborate seamlessly without switching apps, focusing on measurable environmental wins.

Target Audience

Student-led sustainability clubs working on climatetech projects

Differentiator

Only tool built exclusively for student sustainability clubs with embedded, project-specific carbon calculators that update in real-time based on collaborative edits.

Brand Voice

supportive

Features

Real-time Kanban Boards

must-have20h

Drag-and-drop boards for project tasks with live collaboration and carbon impact previews per task.

Carbon Impact Calculator

must-have25h

Real-time calculator for CO2 savings based on project inputs like km saved, kWh generated, etc.

Club Workspaces

must-have15h

Invite-only spaces for clubs with member roles and project folders.

Task Assignments & Notifications

must-have12h

Assign tasks to members with email/Slack-like push notifications.

Impact Reports

must-have10h

Generate shareable PDF reports of total carbon impact per project.

Mobile App View

nice-to-have8h

Responsive design optimized for mobile task updates.

Integration with Google Calendar

nice-to-have6h

Sync project milestones to calendars.

AI Impact Suggestions

nice-to-have10h

AI prompts for optimizing project plans for higher carbon savings.

Total Build Time: 106 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
nametextNo
universitytextYes
created_attimestampNo

Relationships:

  • one-to-many with clubs (club_members)

clubs

ColumnTypeNullable
iduuidNo
nametextNo
descriptiontextYes
created_attimestampNo

Relationships:

  • many-to-many with users via club_members
  • one-to-many with projects

projects

ColumnTypeNullable
idNo
club_iduuidNo
nametextNo
typetextNo
carbon_paramsjsonbYes
total_impactfloatYes
created_attimestampNo

Relationships:

  • foreign key to clubs.id
  • one-to-many with tasks

tasks

ColumnTypeNullable
iduuidNo
project_iduuidNo
titletextNo
statustextNo
assigned_touuidYes
carbon_impactfloatYes

Relationships:

  • foreign key to projects.id, users.id

API Endpoints

POST
/api/clubs

Create new club

🔒 Auth Required
POST
/api/projects

Create project with initial carbon calc

🔒 Auth Required
POST
/api/calculate-impact

Compute real-time carbon impact from params

🔒 Auth Required
PUT
/api/tasks

Update task status and recalculate impact

🔒 Auth Required
GET
/api/reports/:projectId

Fetch project report data

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind CSS + Recharts
Backend
Next.js API routes
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Supabase RealtimeZod for validation

Build Timeline

Week 1: Core auth and club setup

25h
  • User signup/login
  • Club creation/join
  • Basic dashboard

Week 2: Projects and carbon calculator

30h
  • Project CRUD
  • Carbon calc logic
  • Real-time updates via Supabase

Week 3: Kanban and tasks

25h
  • Task management UI
  • Assignments and notifications

Week 4: Reports and polish

20h
  • PDF reports
  • Landing page
  • Payments integration

Week 5: Testing and nice-to-haves

15h
  • Mobile optimization
  • Calendar integration
Total Timeline: 5 weeks • 125 hours

Pricing Tiers

Free

$0/mo

No reports, 1GB storage

  • 1 club
  • 3 projects
  • Basic calculator
  • Unlimited members

Pro

$37/mo

10GB storage

  • Unlimited clubs/projects
  • Real-time collab
  • PDF reports
  • Notifications

Enterprise

$97/mo

Unlimited

  • All Pro + AI suggestions
  • Priority support
  • Custom branding
  • API access

Revenue Projections

MonthUsersConversionMRRARR
Month 11502%$111$1,332
Month 68005%$1,480$17,760

Unit Economics

$15
CAC
$444
LTV
5%
Churn
92%
Margin
LTV:CAC Ratio: 29.6xExcellent!

Landing Page Copy

Empower Your Sustainability Club with Real-Time Carbon Tracking

Collaborate on climatetech projects and watch your carbon impact grow live—no more spreadsheets.

Feature Highlights

Live kanban with impact calcs
Club workspaces
Automated reports
Easy invites
Proven carbon formulas

Social Proof (Placeholders)

"'Transformed our tree-planting project!' - EcoClub UCLA"
"'Real-time insights changed everything.' - GreenU Chicago"

First Three Customers

Post in university sustainability Discords and Reddit (r/sustainability, university subs), DM club leaders from LinkedIn sustainability groups, offer free Pro access for testimonials in exchange for feedback.

Launch Channels

Product Huntr/SaaSr/sustainabilityIndie HackersTwitter #Climatetech

SEO Keywords

student sustainability club toolcarbon calculator for projectsclimatetech collaboration softwarereal-time impact tracker clubs

Competitive Analysis

Free/Pro $5/user
Strength

Simple kanban

Weakness

No carbon calcs or club-specific features

Our Advantage

Built-in real-time sustainability metrics

Notion

notion.so
Free/Pro $8/user
Strength

Flexible workspaces

Weakness

No real-time calcs, not collab-optimized for impacts

Our Advantage

Specialized carbon tools + realtime

🏰 Moat Strategy

Network effects from club sharing + proprietary carbon datasets from user projects.

⏰ Why Now?

Rising climate awareness in universities post-COP + remote collab boom post-COVID.

Risks & Mitigation

marketmedium severity

Low adoption by students

Mitigation

Validate via 20 club interviews pre-build

technicalhigh severity

Inaccurate carbon calcs

Mitigation

Use validated EPA/UN formulas + user feedback loop

executionmedium severity

Scope creep on features

Mitigation

Strict MVP timeline adherence

Validation Roadmap

pre-build7 days

Interview 10 club leaders

Success: 5+ confirm pain and WOYLP

mvp14 days

Beta test with 3 clubs

Success: 80% retention week 2

launch3 days

PH launch

Success: 200 signups

Pivot Options

  • General project mgmt for non-profits
  • Standalone carbon calculator app
  • Enterprise sustainability tool

Quick Stats

Build Time
125h
Target MRR (6 mo)
$1,500
Market Size
$50.0M
Features
8
Database Tables
4
API Endpoints
5