Circular manure, nutrients & energy

Turning manure into value

Integrated on-farm systems that transform manure into renewable energy and recovered nutrients — reducing manure export, fertilizer use and energy costs.

How it works EIP Project
Image by Freepik

The Challenge

Dairy farms lose value through manure export while still buying back energy and fertilizer.

Manure export costs

Manure becomes a cost

When more manure is produced than can be efficiently used on the farm, storage, treatment and export become recurring costs.

Valuable nutrients leave the farm

Valuable nutrients leave

Nitrogen and other nutrients leave with exported manure, while mineral fertilizers are purchased to maintain crop productivity.

External energy consumption

Energy remains an external input

Farms consume electricity and heat while much of the renewable energy potential contained in manure remains unused.

Flexiliser closes these loops by turning manure into renewable energy and reusable nutrients.

How Flexiliser transforms manure into renewable energy and circular nutrients

Each installation is designed around the farm itself. This allows us to integrate the farm characteristics with our manure processing, renewable energy generation and nutrient recovery, resulting into one on-farm system.

What Flexiliser Delivers

A practical on-farm system that turns manure management from a recurring cost into useful nutrients and renewable energy.

Less Manure Export

Nutrients are separated and concentrated so more of the manure value can remain on the farm and less material needs to be transported away.

Recovered RENURE

Mineral nitrogen recovered from manure can be reused as fertilizer, reducing the farm's dependence on externally purchased mineral nitrogen.

Renewable Farm Energy

Biogas from manure is converted into dispatchable electricity and heat, supplying energy directly where it is produced.

A Managed System

Flexiliser integrates, monitors and operates the process so the technology becomes part of the farm rather than another complex system for the farmer to manage.

The result: fewer external inputs, fewer waste streams and more value retained on the farm.

In Practice

Every farm is different. Flexiliser is configured around existing infrastructure, available space, herd size and storage capacity.

Indicative example of how a Flexiliser installation can be integrated on a dairy farm

For a typical dairy farm of around 150–250 cows, the system may include a ~500 m³ digester and a compact process area of approximately 12 × 12 m, containing two 40 ft process containers and one 20 ft CHP container. Existing manure storage can often be adapted for recovered RENURE and concentrated nutrient-rich streams, reducing the need for entirely new storage infrastructure.

Indicative configuration only. Final design depends on farm conditions, existing infrastructure, permitting and operational requirements.

Our Journey

From decarbonizing fertilizer production to building integrated solutions for Dutch dairy farms.

2020

The Idea

Flexiliser began with the ambition to decarbonize fertilizer production and bring it closer to where fertilizers are actually used. Our first work focused on renewable ammonia production and was supported by a TSE Industries feasibility subsidy.

2021–22

Learning from Agriculture

Working together with a farmer changed our perspective. We learned that fertilizer production, manure management, farm energy and agricultural emissions are deeply interconnected, and that addressing them together can create far more value than treating each challenge separately.

Sep 2022

Flexiliser B.V.

The lessons from our early work led us to formally establish Flexiliser B.V. in September 2022. We continued strengthening the concept step by step, bootstrapping the company while working alongside other jobs to finance its development.

2025–26

From Concept to Technology

In 2024 we applied for an EIP innovation project, which was approved in April 2025. The project allowed us to accelerate development, work much more closely with farmers and technical partners, and build our first integrated manure-processing prototype. Today, that prototype is being used to develop and improve our pathway for converting manure nutrients into RENURE.

2027+

From Prototype to Farms

Our next step is to integrate the nutrient-recovery process with anaerobic digestion at the farm of one of our project partners. We aim for this to become the first of several installations through which we can standardize the Flexiliser platform and contribute to a more resilient Dutch agricultural sector.

What We Believe

Agriculture, nutrients and energy should not be treated as separate systems. Manure is not simply a waste stream: managed correctly, it can provide renewable energy, valuable nutrients and greater resilience for farms.

What We Are Building

Flexiliser is building an integrated technology and infrastructure platform around the farm. We combine proven technologies, smart control and long-term operation to help farmers manage manure, nutrients and energy as one connected system.

EIP INNOVATION PROJECT · 2025–2027

Turning the concept into a working technology

The EIP project has provided Flexiliser with the platform to move from concept development into practical technology validation. Together with farmers, technical partners and research expertise, we have designed our first manure-processing prototype and developed a pathway for recovering mineral nitrogen from manure as RENURE.

Prototype Development

Building and testing the separation and filtration processes required for nutrient recovery.

Learning with Farmers

Understanding how manure treatment must fit real farm operations, infrastructure and seasonal conditions.

Preparing the Next Step

The next phase is to integrate nutrient recovery with anaerobic digestion in a full on-farm installation.

Project Updates & Results

Follow the development of the Flexiliser technology, project milestones and knowledge-sharing activities as the EIP project progresses.

September 2026
Like what we are building?
Flexiliser has been selected for the KVK Innovation Top 100. You can support us by voting here.
Vote for Flexiliser
September 2026
Flexiliser selected for the KVK Innovation Top 100

Flexiliser was selected for the KVK Innovation Top 100 as we prepare for the next phase of commercialisation. The recognition is an important milestone following the technical development made possible through the EIP project.

Read the update
June 2026
Preparing for our Seed Round

Flexiliser presented its technology and growth plans at the Kaastad Kapitaal investors day in Alkmaar as we prepare to raise Seed funding for the next stage of development and commercialisation.

Read the update
May 2026
Flexiliser featured on the PIM Noord-Holland Podcast

Co-founder Michel Michaloliakos joined the PIM Noord-Holland Podcast to discuss the Flexiliser concept, our work with dairy farmers and the technology being developed through the EIP project.

Read the update Listen to the podcast
April 2026
Flexiliser at the GO!-NH Jaarevent 2026

Flexiliser joined entrepreneurs, experts and regional partners at the GO!-NH Jaarevent 2026 to share our experience building a circular solution for manure, nutrients and farm energy.

Read the update
November 2025
Selected for the GO!-NH Market Readiness Programme

Flexiliser joined the 2025–2026 GO!-NH Market Readiness Programme to further develop our commercial proposition alongside the technical development of the EIP project.

Read the update
September 2025
First EIP experiments begin with the TAHR reactor

We received our 20 L TAHR reactor, enabling the first experimental phase of the EIP project and the start of our practical technology development programme.

Read the update

This project is carried out within the European Innovation Partnership for Agricultural Productivity and Sustainability (EIP-AGRI) and is co-funded by the European Union through the European Agricultural Fund for Rural Development (EAFRD / ELFPO) and the Province of Noord-Holland.

Province of Noord-Holland
Co-funded by the European Union

Founders

Three complementary backgrounds across technology, business, policy, governance and finance.

Steven van Dalen

Steven van Dalen

Co-founder & CEO

Corporate, Legal & Governance

Leads legal affairs, governance, financing and corporate development.

Law, Economics & Sustainable Development · 10+ years in management, strategy and energy.

LinkedIn
Michel Michaloliakos

Michel Michaloliakos

Co-founder & CCO

Commercial & Public Affairs

Leads commercial development, partnerships, subsidies and farmer relations.

Public Administration & Geopolitics · 10+ years as lecturer, speaker, lobbyist and entrepreneur.

LinkedIn
Manuel Sánchez Diéguez

Manuel Sánchez Diéguez

Co-founder & CTO/CFO

Technology, Operations & Finance

Leads technology development, system integration, operations and financial modelling.

Chemical Engineer · PhD in Energy Systems · 10+ years in energy, risk and consulting.

LinkedIn

Contact

Location:

Amsterdam

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Province of Noord-Holland
European Union
RVO
TNO