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Vision & Mission

From SolarX to SustainaSun

The Starting Point

SolarX began as a conventional solar energy company. Like many in the industry, it focused on:

  • Selling high-quality solar systems (priced around 10,000 €)
  • Reducing household energy bills
  • Achieving technical efficiency

While SolarX contributed to renewable energy adoption, it fell short in broader sustainability dimensions:

  • Affordability — Systems were out of reach for many households and communities
  • Accessibility — Installation was limited to certain property types and geographies
  • Social impact — The business model did not address inequality or energy poverty
  • Environmental depth — Product lifecycle, material sourcing, and end-of-life were not fully considered

The Epiphany

The question that changed everything:

Why not become the most sustainable solar company in the world?

This led to a fundamental rethinking of the business model, product design, and organizational purpose — not just incremental improvement, but genuine transformation.

The Vision: SustainaSun

SustainaSun is the transformed enterprise — built around three core sustainability pillars:

Pillar What it means
Affordable Solar energy accessible to everyone, not just those who can afford a 10,000 € system
Adaptable Systems that can be installed in diverse environments — urban, rural, commercial, residential
Genuinely Sustainable Addressing environmental impact across the full lifecycle, economic viability, and social equity

The Mission

SustainaSun's mission is to empower communities by making solar energy:

  • A tool against climate change
  • A solution to resource scarcity
  • A means to address energy inequality

SustainaSun is not just a company. It is a movement toward a brighter, fairer future.

Why SustainableTogether?

This transformation cannot happen in isolation. It requires:

  • Systems thinking — Understanding the full ecosystem of energy, business, society, and environment
  • Collaboration — Engineers, designers, business leaders, communities, and policymakers working together
  • Open knowledge — Sharing models, frameworks, and learnings openly so others can build on them

That is why this project is open source, and why it is called SustainableTogether.