
SmartPuls
Electricity prices directly in your PLC
SmartPuls gives your PLC access to electricity prices, temperature, and precise time – without network connections, API integrations, or complex setup.

SmartPuls
SmartPuls is a compact device that makes it easy to integrate electricity prices, temperature, and time into your PLC control – without IT, networks, or complex protocols.
The device is delivered ready to use with a built-in SIM card.
It is mounted directly on a DIN rail and connected via a single digital output to the PLC's digital input.
From here, electricity spot prices, temperature, and precise time are provided – hour by hour.
SmartPuls is designed for those who want to automate energy optimization without compromising on operational reliability or cybersecurity.
✅ Designed for industry and the utility sector
✅ Supports NIS2 requirements
✅ Easy installation – no network access or router required
✅ Compatible with most PLC systems via digital input
Would you like to learn more – or get a price?
Contact us for a no-obligation discussion at mail@nordic-sro.dk or +45 40906080
How SmartPuls can pay off – simple calculation example
Get a quick overview of how much you can save with SmartPuls. Enter your own figures and see how you can reduce electricity costs by avoiding the most expensive hours of the day.
What is the device?
It is a small device mounted directly on the DIN rail in the electrical panel. It has a built-in SIM card and automatically delivers data to your control system – without the need for network, IT, or complex configurations.
All communication takes place via a single digital output (24VDC), which is connected to a PLC input. From this, you get:
• Electricity prices
(DK1 or DK2) hour by hour
– today and tomorrow
• Temperature data for the local location hour by hour – today and tomorrow
• Current time – as a precise time server
• Error notification in case of missing data
• Simple, secure, and NIS2-compliant data delivery
With the device, you can easily start/stop equipment, optimize operations, and save money – fully automatically.
SmartPuls in practice
Here are examples of how SmartPuls can be used in different types of plants, where electricity prices, operation and timing have a direct impact on economics.
- Start and stop of electric boilers and heat pumps based on the electricity price – minimize operating costs during peak-load hours.
- Dynamic load control: Scale heat pumps, pumps or electric boilers in steps according to the price level, e.g. 100% / 50% / 0%.
- Logging of electricity consumption: Get an accurate picture of when and how much electricity is used – and what it costs.
- Precise calculation of electricity costs: Combine operating times and electricity prices to analyze the efficiency of each individual machine or process.
- Automatic switching between heat-producing units based on the electricity price – e.g. between heat pump and gas- or wood pellet boilers.
- Time-controlled operation: Synchronize the PLC with the exact time – crucial for time-controlled switching and documentation.
- Temperature-based control: Adjust start, stop and load steps on heat pumps according to both price and outdoor temperature.
- Control of gas engines: Start and stop gas engines based on current electricity prices and maximize the economics of electricity production.
- Compressors and pumps: Optimize operating times for energy-intensive units – run them during low-price periods and avoid peak loads.
- Gas storage: Postpone the use of stored biogas to times with higher electricity prices, where production provides the best return.
- Time-controlled PLC operation: Synchronize the PLC system with the built-in time server – and avoid deviations in control logic.
- Automated energy control: Activate functions automatically in the hours when the electricity price is low – without manual intervention.
- Mixing in tanks: Reduce or postpone tank mixing during peak-load hours, if the process allows it – and save energy.
- Weather-compensated operation: Use local temperature data to adjust strategies for e.g. gas engine load or heat recovery.
- Pump control: Adjust pumping in sewer systems and pumping stations based on the electricity price – and postpone non-critical pumping to low-price periods.
- Mixing and aeration: Run aeration tanks and mixers intensively when electricity is cheap – and reduce operation during peak loads.
- Sludge dewatering and transport: Plan dewatering, polymer dosing and sludge pumping for times with low electricity prices.
- Carbon filters and UV systems: Adjust the operating time of UV disinfection and carbon filters where operationally justifiable.
- Heat pumps: Optimize the operation of wastewater-based heat pumps according to the price level – and reduce energy costs.
- Temperature-controlled aeration: Adjust the operation of mixers and aerators based on water temperature and outdoor temperature.
Do you want to see if SmartPuls is a good fit for your plant?
We are happy to have a concrete discussion about the possibilities, the savings, and how SmartPuls can be used in your PLC control.
Contact us