Decentralised energy management from Karlsruhe
The grid itself signals when power is cheap.
Easy Smart Grid turns the state of the grid into a simple price signal. Heat pumps, EVs and batteries respond to it on their own. This lets more wind and solar power into the grid, without costly central control.
Each device has its own threshold (dark line). When the signal rises above it, the device switches on. No control centre, no data exchange.
That was a grid with just four devices.Run a whole village in the simulator- Good Practice of the Year 2021
Renewables Grid Initiative, SoLAR project - Efficient Solution
Solar Impulse Foundation - European patent
Price communication via the grid - Top 3 Smart Energy Startups
EIT Digital Idea Challenge
Netzpuls · the simulator
Build your own power grid.
In the Netzpuls simulator you run a whole island village or an interconnected grid. You add solar, wind and storage and watch live as heat pumps and electric cars respond to the grid signal without any central control.
- Runs in the browser, nothing to install
- Tutorials explain the idea step by step
- Scenarios such as Island Village and Interconnected Grid 2025
The challenge
Wind and sun do not follow demand.
Power plants used to follow demand. Today, demand has to follow supply. Until now, there has been no simple, affordable mechanism for this.
Generation fluctuates
Wind and solar power arrive when the weather allows. Power cannot be stored in the grid, so supply and consumption must match at all times.
Grids reach their limits
EVs, heat pumps and solar PV put strain on lines and transformers. Grid expansion alone is expensive and takes years.
Central control is cumbersome
Remote-controlling millions of devices individually requires a lot of communication and data, and creates points of attack.
Our solution
A price signal everyone understands.
The grid itself is the information channel. We read its state and turn it into a signal that every device can act on.
- Step 1
Measure the grid state
Grid frequency or energy flow show whether there is too much or too little power and how heavily lines are loaded.
- Step 2
Create the price signal
The Balance Indicator shows surplus or scarcity, the Congestion Indicator shows imminent bottlenecks. Both are combined into a local price.
- Step 3
Devices decide for themselves
A small controller in the device shifts consumption to cheaper times, on behalf of the owners and according to their settings. The data stays on site.
Why it works
Simple. Affordable. Robust.
Simple
Grid users sell their flexibility without having to manage it. Complex systems are run in a decentralised and stable way.
Affordable
Uses the existing grid for communication. Less storage and less communication technology cut investment and operating costs.
Robust and secure
The physics of the grid cannot be manipulated from outside. Personal consumption data never leaves the building.
Scalable
From a single building to an interconnected cellular grid. Market mechanisms coordinate any number of participants in real time.
Why now
Dynamic tariffs are becoming standard. We provide the technology behind them.
Since 2025, electricity suppliers in Germany have been required to offer dynamic tariffs. Smart meters, heat pumps and EVs bring millions of flexible consumers into the grid. What is missing is simple coordination – and that is where Easy Smart Grid comes in.
Applications
Where our technology makes a difference.
Climate-friendly neighbourhoods
Optimise PV, heat pumps and charging points across the neighbourhood.
Grids for 100 % renewables
Dynamic tariffs and grid charges for grid operators and utilities.
Islands and micro-grids
Replace diesel, expand renewables, keep grids stable.
Business and industry
Reduce peak loads, make better use of on-site generation, save costs.
Reference project
SoLAR Allensbach: a neighbourhood on Lake Constance as a model.
In a residential complex with 22 households, solar PV, a combined heat and power plant, heat pumps and charging stations were connected using our technology. Funded by the Baden-Württemberg Ministry of the Environment, 2018 to 2021.
News
From our projects and network.
Easy Smart Grid – Winner @Urban Tech Hackathon
Combining needs with ideas creates innovation! With several other European innovation hubs, Cyberforum in Karlsruhe organized just that: “Challenge owners” formulated needs, “Solution owners” proposed ways to achieve …
20 Jun 2022SoLAR - bereit für 100% Erneuerbare
SoLAR zeigt im „Grünsten Wohnquartier am Bodensee“, wie in der zukünftigen Energiewelt das System „vom Kopf auf die Füße gestellt“ wird: Nicht große fossile Kraftwerke folgen einem vorgegebenen Bedarf, sondern viele …
16 Mar 2022Dependance on natural gas
Yesterday we heated our houses by burning gas (of which in Germany 55% came from Russia). Today we should use heat pumps instead – in new and existing buildings: They take ¾ of the energy from the environment and ¼ from …
Let us talk about the grid of tomorrow.
Investment, pilot project or partnership: we look forward to hearing from you.