ENGINEERING-GRADE EMS
Building technology
to solve grid congestion
Unlocking on-site energy flexibility. Wattmaestro reads, steers, and optimises every asset. From solar and storage to the ones others can't steer. Built for energy sites that can't afford failure.
Full stack, built in The Netherlands
THE PROBLEM
More assets.
More dependency.
More complexity.
The energy transition is in full swing. Every site keeps adding equipment. Solar on the roof. A battery in the corner. Chargers in the car park.
Different manufacturers, different languages, never designed to work together.
On top of that, there's grid congestion. More equipment, the same connection, and a waiting list of years for a bigger one. The room you need is no longer on the grid. It's on your site, in how those assets work together.
Unlocking on-site flexibility is the hard part. It's the work we built Wattmaestro for.
OUR SOLUTION
One platform.
Three different solutions.
EMS
Our end-to-end energy management system. It reads, steers and optimises on weather, site consumption and energy prices. For projects that need a reliable full-stack EMS, integrated with your assets.Â
EMS +
Our EMS product, reinforced with our own engineers. For solution providers, EPCs, process automation firms and builders: we integrate difficult assets, building management systems, or production processes into one working system.
PRODUCT 

INTEGRATION
Your product, your brand, our EMS inside. For OEMs and machine builders. We embed our energy management technology in your battery system, heat installation or machine. It ships with intelligent control built in, under your name.
WHAT WE CONNECT
Who we work with
We partner with the companies that build, install and service energy infrastructure — giving them the EMS layer, the engineering and the integrations behind their own projects.
Equipment manufacturer
Our EMS functionality inside your product, under your brand. We embed our control layer in batteries, heat units and machines, so your product ships with intelligent energy management built in.
Building companies
Construction projects energy-ready from the ground up. We design the energy system alongside the build, so the connection and assets work as one from day one.
Solution providers
The EMS inside your turnkey projects. We're here to handle difficult integrations and edge cases, so you can deliver a complete, working solution to your customer.
OUR PROMISE
Your partner
in energy management
Save on energy costs
Energy consumption is automatically shifted to hours when electricity is cheaper and grid capacity is available. In practice, this can reduce your energy costs by up to 40%, proven across energy-intensive sites.
Stay within your connection
Total site load is automatically managed so you never exceed your contracted grid capacity. No years spent waiting for an upgrade, just smarter use of the capacity you already have.
Integrate with existing systems
Wattmaestro integrates with the systems already running on your site, including building management systems, production systems and other critical systems in place.
Wattmaestro vs...
We are not the right fit for every site, and that is fine.
A standard EMS might suit you better if...
> You run a single, standard site with off-the-shelf assets
> Everything speaks one common protocol already
> You only need monitoring and simple scheduling
> Price is all that matters to you
Reasons to choose Wattmaestro
- You are dealing with complex or critical infrastructure that can’t fail
- You have a mix of hard-to-steer assets,
BMS, off-grid or island mode
- You want one team accountable, 
from gateway to dashboard
- You want the full stack, 
built and owned in the Netherlands
WHAT WE CONNECT
If it speaks a protocol, we speak to it.
Read and steer, across brands. And when the protocol barely exists, we engineer the bridge.
WHAT WE CONNECT
If it speaks a protocol, we speak to it.
ABOUT WATTMAESTRO
Built on years
of IoT experience
20+
Years of industrial IoT experience
30k
Connected assets worldwide
99,9%
Gateway uptime
