Sun Factory Project

07 · Business model

Business model  
Open source & Replicable

Thinking open source and replicability: investments fund machines that, once designed, become available to all of humanity.

Investment

Every contribution becomes a deliverable

Supporting the Design Office means funding tangible results: energy calculations, 3D plans, prototypes, proofs of concept and published articles. Every franc entrusted becomes documented and replicable solar commons that lastingly enrich the technology portfolio, for the benefit of all. Hours are only a unit of measurement: what is funded is what remains.

Deliver

A verifiable result

Every contribution leads to a published, measurable deliverable: a plan, a prototype, a proof of concept, a tool, a file.

Fill

The technology portfolio

Every deliverable becomes a portfolio sheet, or moves a sheet from « documented » to « validated · POC », then to a replicable FabLab version.

Prioritise

What makes us unique

Solar plastic recycling, sun-puffed cereals: two world firsts that reflect our determination to make solar heat compatible with decentralised applications.

Deliverables

What a year of the Design Office produces

Volumes per year and hours per deliverable estimated from each profile's time. The cost of a deliverable depends on its type and scale.

Engineering · Design · IT · Communication

New kit or machine

2 per year415 h70,300 CHF

Energy calculations, 3D and 2D plans, BOM, prototype, proof of concept, published article and launch campaign.

Engineering · Design

FabLab version or improvement

2 per year160 h27,600 CHF

Parametric model, cutting files, prototype and measurements: a replicable version.

Engineering · IT

Component sheet

4 per year55 h9,100 CHF

Specifications, plans, BOM and costs, published online in the portfolio.

Design

Mould or object

4 per year40 h6,100 CHF

Drawing, prototype, ergonomics and 3D files published as open source.

IT & applied AI

Digital tool

3 per year90 h12,600 CHF

Two online solar calculation tools and an AI dissemination agent.

Engineering · Communication

Training residency

1 per year120 h19,800 CHF

Programme, supervision in a FabLab and developments documented by the residents.

Communication

Partnership file

10 per year24 h2,880 CHF

The portfolio presented to an institution, an NGO or a company facing a challenge.

Handling · contributory income

Assembly of prototypes and kits

All prototypes400 h / year12,000 CHF

Preparing materials and assembly, paid 30 CHF/h, close to production sites.

Coordination

Managing the deliverables

All year round360 h / year63,000 CHF

Coordinating contributors, tracking deliverables and hosting by the Antenna Foundation.

Travel · monitoring · contingencies

Programme costs

Per year—16,500 CHF

Flights for the residencies and the Accra SunFactory Lab (8,500), public impact report (3,000), contingencies (5,000).

A year of the Design Office

≈ 8 to 10 more sheets in the portfolio

Total2,920 h / year434,500 CHF

The sum of the deliverables above, all published as open source and added to the technology portfolio.

Average amounts per deliverable: contributors' work at their hourly rate, plus prototype materials (10,000 CHF per year in total). Added together, they make up the annual budget.

Contributors' hourly rates

  • Senior mechanical engineerCoordination, mechanical engineering, energy calculations175 CHF/h
  • Low-tech object designerObjects, moulds, ergonomics, finishes140 CHF/h
  • Web & AI developerDigital tools, AI agents, publishing online140 CHF/h
  • Communication & marketing officerFiles, campaigns, partnerships120 CHF/h
  • HandlingAssembly of prototypes and kits · contributory income30 CHF/h

Excluding VAT, by trade and experience.

Amounts

What these amounts cover

These are not sale prices: they are research, IT and dissemination costs, incurred once and for all.

Research

Inventing, not manufacturing

Calculations, tests, iterations and measurements up to the proof of concept. Once developed, a kit is reproduced at the cost of materials and assembly: ≈ 1,240 CHF for the injection kit.

Equip & disseminate

IT and marketing included

Online calculation tools, published sheets, files and campaigns: without them, a technology stays in the workshop. They put it in the hands of those who need it.

Share

Funded once, open forever

Published under free licences, every development can be reproduced anywhere without licence fees. The more it is replicated, the closer its cost per use gets to zero.

Revenue

Three revenue sources for the Design Office

Donations fund what cannot be sold; developments and kits fund the rest.

① Research fundingFoundations, patrons, public and academic programmes fund R&D, proofs of concept and open documentation: non-market goods by nature.
② Developments & capacity buildingThe Design Office invoices custom developments and capacity building (training, support, adaptation) around the portfolio's technologies.
③ Kit salesThe machines and technologies developed are also sold as kits, to FabLabs, schools, NGOs or self-employed people.

Architecture

How value flows

Funding committed once benefits everyone who reproduces the machine afterwards.

1

Investors & funders

Foundations, local authorities, public programmes, patrons and institutions facing a challenge.

Donations · grants · mandates
2

Antenna Foundation

Hosts the project: it receives the funds intended for the Design Office and pays the contributors' mandates.

Receipt · distribution
3

Design Office

Research, proofs of concept, custom developments and training.

Hours counted per project
4

Portfolio of commons

Plans, BOM, code and articles published under open licence, durably accessible to all.

Free · replicable
5

Local actors & SunFactory Labs

They make and sell objects, train people and create jobs; they can acquire any content of the technology portfolio or get support.

Local income · jobs

↺ Back to the commons: improvements by local actors return to the Design Office and enrich the portfolio.

Why it works

Open source as a business model

A donation to research is never used up: it becomes open knowledge that others turn into activity. Every franc donated generates solar commons and enables local actors to produce, sell and make a living from solar energy: this is how a decentralised solar economy is born.

01

A donation that multiplies

A machine funded once by research is replicated everywhere, with no new R&D cost. What is published stays acquired, whatever happens.

02

Trust as an advantage

Open plans and costs: customers know what they are buying and can repair it. The Design Office sells its expertise, not a patent rent.

03

A solar economy born in the field

With the published commons, local actors make, sell and train in the sun. They become self-financing, create jobs and in turn become customers for kits and developments.

04

Transparent governance

Legal and fiscal hosting by the non-profit Antenna Foundation: it receives the funds and pays the mandates. Costs published project by project, hours included.

Tiers

What a contribution funds

Each amount corresponds to an identifiable deliverable.

2,880 CHFA partnership file

The portfolio presented to an institution, an NGO or a company facing a challenge.

6,100 CHFA mould or an object

Designed, prototyped and published as open source.

9,100 CHFA component sheet

Specifications, plans, BOM and costs, published online in the portfolio.

12,600 CHFA digital tool

An online solar calculation tool or an AI dissemination agent.

19,800 CHFA training residency

Programme, supervision in a FabLab and documented developments.

27,600 CHFA FabLab version

A machine made replicable in any FabLab.

70,300 CHFA new kit or a new machine

From calculation to publication: 3D plans, prototype, proof of concept and article.

434,500 CHFA year of the Design Office

≈ 8 to 10 more sheets in the portfolio, coordination, assembly and costs included.

Average amounts, based on contributors' hourly rates by trade and experience.

Roadmap

2026 – 2028

2026 – 2027

Finalise

  • Cost and publish the already validated kits in full versions
  • Finalise the bar and sheet machines: develop, test and document the bar and sheet moulds (POC done, machine costs known)
  • Put the first AI dissemination agents online
  • Recruit the « Communication & marketing » role
2027

Launch

  • An R&D season on a new area: puffed cereals, roasting or cosmetics
  • First capacity-building residency contracts for solar plastic recycling
  • A first public impact report
2028

Consolidate

  • Regular orders for kits built in the SunFactory Labs
  • A network of self-financing SunFactory Labs and factories
  • An international research consortium with academic partners