Efficient energy projects. Worldwide & from a single source.

Responsible.
Reliable.
Worldwide.

Wherever independent renewable energy systems are to be implemented – we provide project managers with solutions for technology, planning, and execution.

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Experience you
can rely on.

Dealers with engineering degree.

Our work is extensively certified and globally proven. Partners such as GIZ, Siemens Stiftung, and UNICEF have been relying on our systems for years. Quality and reliability come first for us.

FROM IDEA
TO COMPLETION.

YOUR END-TO-END BUSINESS PARTNER

We take responsibility for complete EPC projects: from needs analysis and technical design to commissioning.

ENGINEERING

What do you really need? We analyze the requirements, location, and application – and provide a precise design.

Start Briefing / Sizing

Analysis of load profile, energy demand, operating conditions, and system size design.

Selection of technically compatible and proven components – manufacturer independent and application oriented.

Development of a concrete system concept, including technical design, bill of materials, and planning documents.

Creation of all relevant documents for project approval, funding, tendering, or certification.

Structured process with defined milestones, time frames, and cost framework.

PROCUREMENT

From procurement to logistics – we ensure that everything is in the right place at the right time.

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Selection and procurement of components, price negotiation, coordination with manufacturers and supply chains.

Ensuring legal compliance for import, product liability, and CE/ISO documentation.

Technical pre-inspection of delivered components before shipment – to ensure quality.

Consolidation and interim storage for bundled delivery and demand-oriented shipping.

Creation and coordination of all documents for international shipping, customs clearance, and import.

CONSTRUCTION

We work with local partners – well-prepared, technically trained, and as equals.

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Training of partners or customers on system components and project implementation – online or on-site.

Support during construction execution by experienced Phaesun employees or coordinated partners.

Execution or support of technical commissioning, functionality testing.

Acceptance test after installation and commissioning to ensure the defined system performance.

Integration with remote monitoring, final handover, and potentially training for long-term operation.

Your needs,
our experience.

Together we lead projects to success.

Our solutions are aimed at NGOs, funding institutions, companies, installation partners and research projects. We offer tailor-made systems and a customized form of cooperation for each target group:

Energy simply has to run.
Project environments are often unstable. Our systems work – robust, documented, tried and tested worldwide.

Supply must not be a risk.
We plan energy for sensitive applications – with sophisticated systems and full traceability.

Innovations need a testing ground.
We supply infrastructure for practical testing – adaptive, scalable, ready for use.

Impact needs reliability.
We deliver reliable technology, clean documentation and clearly verifiable results – wherever they count.

Technology that delivers what it promises.
Our components work together – with advice, documentation and support when it counts.

Successful projects

With the right solutions for every challenge.

OFF-GRID RURAL

OFF-GRID PUMPING

OFF-GRID INDUSTRY

MINI-GRID

HYBRID SELF CONSUMPTION

OFF-GRID TELECOM

Stand-alone solar systems deliver clean, reliable power to remote
communities — supporting lighting, cooling, communication, and small
companies. A low-maintenance, cost-effective solution for rural
development.

Track Record

Off-grid solar pumps provide clean, efficient water supply for farms,
homes, and villages. Quiet, modular, and sustainable — an ideal
alternative to diesel-powered systems in remote areas.

Track Record

Solar or hybrid systems ensure reliable, cost-efficient energy for critical or remote operations — independent of the grid, low-impact, and ideal for continuous performance.

Track Record

Mini-grids supply stable, clean energy to small villages or industrial sites using solar, batteries, and generators — ideal for remote areas, reducing costs and emissions.

Track Record

PV + battery + grid systems for homes and buildings maximize energy
efficiency, reduce reliance on fossil fuel, and lower electricity costs — boosting resilience and sustainability.

Track Record

Solar PV systems power telecom towers and stations in remote areas
— modular, quiet, and reliable alternatives to diesel, supporting stable, low-maintenance connectivity.

Track Record

Your energy project
– let's get started

Not now? We're happy to give you a call back.

You already know what you need?

We close gaps
with innovation.

Benefit – as a customer or partner.

Phaesun is active in applied research and development. Our systems are often created where commercial solutions are lacking – for example, in off-grid cooling or water treatment. That means we also develop where no market exists yet.

SelfChill is one result of this work: a modular cooling system developed in cooperation with the University of Hohenheim, now in use across multiple continents.

We offer:

  • A development partner with engineering expertise and market access
  • A project partner for pilot testing, scaling & real-world conditions
  • Access to international applications & local partners

Do you have solutions that need testing?

Looking for a strong development partner?

Still have questions?

GENERAL

We plan, deliver, and support complete energy projects – off-grid, hybrid, or grid-connected. As an EPC partner, we take responsibility from the initial design to commissioning.

We work in sectors such as healthcare, water, agriculture, industry, education & research – everywhere reliable energy is needed.

Worldwide. Our projects run in Africa, Latin America, Europe, and the Middle East – each adapted to local conditions.

PROJECT PLANNING & IMPLEMENTATION

Analysis → Planning → Component selection → Delivery → Installation (possibly via local partners) → Commissioning → Monitoring.

We analyze energy demand, load profile, and conditions – from this, we derive the optimal system design.

Either our local partner network or your own specialists – we support coordination, training & quality assurance.

TECHNOLOGY & OPERATION

We combine tested products from leading manufacturers – selected for function, durability, and availability.

Yes. We assess what can be integrated and expand systems modularly as needed.

Yes. Our systems can be monitored and controlled remotely – for improved operational reliability.

FINANCING & COSTS

It depends on size, technology & region. We provide transparent quotes based on clearly defined requirements.

Many of our clients work with institutional funders – we assist with technical documentation & tender readiness.

Usually by milestones: planning, delivery, handover. Adjustments possible based on project requirements.

QUALITY & CERTIFICATION

We are ISO 9001 certified. Our components and planning processes meet all common international industry standards.

Yes. We provide complete documentation for installation, operation, and submission to funders or authorities.

We stand by all systems we deliver – with clear responsibility, documentation, and a direct point of contact.