Energy monitor
on Web Server
MoCo, P1 to Modbus and energy switch
MoCo, the latest 2WIRE module converts readings and counter readings from the digital meter in real-time to Modbus RTU registers and to consumption pulses. There are applications for different users.
- For manufacturers, MoCo offers the ability to link the digital meter's P1 port directly to their EMS / PLC / home automation, charging station, heat pump or battery control system.
- HVAC installerscan pre-set either output to then plug&play, smartly switch connected devices based on consumption or injection.
- End users can use the P1 OUT connection to connect an energy monitor such as LoWi3 or ReMI with additional outputs,... link for detailed monitoring of their energy consumption.
- Every few seconds P1 update
- Modbus registers for the various P1 measured values, and calculated values for load-balancing, single-rate counters, total power, among others
- 2 Solid state outputs:
- as consumption pulses with adjustable weight
- or as smart grid-ready contacts based on injection or consumption, and with an additional power relay PEM01-012, direct consumers can be switched.
- Default settings adjustable via USB port and free Windows tool
- Autonomous, powered via the P1 port and without need for network connection so 100% Plug&Play at the customer's site
- Expandable via the P1 out connection: energy monitoring with LoWi, or ReMI with additional outputs
- For MoCo, the SEW premium of Fluvius applies
fig. MoCo, via adjustable logic the smartgrid contacts smart switching.
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HOME ASSISTANT coupling
We regularly receive requests to transmit data (P1, Modbus meters, pulse counters,...) from the LoWi3, ReMI and MEMo3 log channels via MQTT sensor to Home Assistant. We have tried a few features ourselves and made them available as examples in a PDF on the MQTT Token product page. Please note that support for development of your own Home Assistant application is not possible. As an MQTT broker, you can use one of your own or this one from 2-WIRE.fig. Below is an example of a screen layout in Home Assistant.
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MQTT licenses
Starting in 2024, MQTT Token will change from a one-time purchase to an annual license that must be ordered and activated through the 2-Wire website. For existing tokens, they must be renewed by July 2024. At the same time, the functionality of our cloud server is further extended to include switching on dynamic rates for the ReMI module, auto backup of the LoWi/ReMI/MEGA configuration,...Installer wanted
With ReMI, discover the ability to accurately monitor both the current and historical energy consumption of your home from any browser-enabled device within your home network. With ReMI, you can measure consumption through the P1 port, connected Modbus meters, IoT smart plugs, meters with pulse output or even through a second ReMI at another location. What makes ReMI truly unique is the ability to enter and modify simple logic rules. Allows you to smartly switch electric heaters or other large consumers via smart-grid-ready contacts, without interfering with the internal operation of the device being controlled. By controlling in a smart way, ReMI realizes its own payback period in months, while significantly reducing the payback period for solar panels, all at a pace you determine.
Installer wanted
ReMI is easy to integrate, even into existing installations. However, it is essential that you first try out in your own setup. And thanks to online video tutorials, you'll become an expert in no time. Thus, make ReMI the ideal gift for all your customers and let them benefit from energy efficiency in the years to come. As an installer, you can purchase ReMI through the electrical wholesalerSmart switching also in your home
Every home installation is different but here are a few ideas to increase self-consumption, avoid peaks and consume at low rates, all with one module independent of existing technologies. Electric water heater: ReMi replaces the former time switch on night rate and turns your water heater into a hot water battery that smartly switches on injection and energy rate. Physical connection to the water heater can be via a 2-wire IOT smartplug or a power contact. Potentially about 1500 kWh annually or nearly 5kWh of energy storage per day. Home battery. The home battery has internal regulation and will charge itself based on injection, time or dynamic rate. When sometime towards noon the battery is charged, ReMI (with e.g. 5' delay ON delay) detects injection again and then switches next device to sun. A standard (basic) charging station: is a large consumer and you can switch it via ReMI (power relay contact, or a 2-wire IoT smartplug, or via a smart-grid contact to the low/boost input on the charging station) manually or smartly on injection, quarter-peak, energy rate,... The consumption of the charging station can be monitored via a connected Modbus meter type EMM or via a 2-wire IoT smart plug. An intelligent charging station automatically reads the P1 port and adjusts its internal control based on the set mode, such as, for example, load-balancing mode (boost-mode), solar or dynamic tariff (eco-mode), Time to charge (calender-mode), Priority and price level with multi-users (priority/price-mode), energy sharing with multiple EV stations (share-mode), and so on. The charging mode is determined at the beginning of the charging session, either by the administrator or through the user's EV app. Having ReMI intervene halfway through by changing the preset mode makes little sense, because no one wants to leave with a dead battery due to conflicting dual control. If you use ReMI here for another consumer then best via logic switching on a value other than consumption or injection, but for example on the yield of the inverter, or on tariff or time,... The charging station in loadbalance mode will then follow the operation of the home (ReMI). Heat pump and heat pump boiler: You can connect ReMI one-to-one to any heat pump or heat pump boiler with a smart-grid-ready connection. In this way, you can e.g. use excess solar energy in heating or cooling the home. Smart heating control entitles you to Fluvius' SEW premium. Inverter: Balancing Rule: One can have ReMI turn off the inverter, for example, at a set kWh daily yield to avoid paying for excess energy returned. Pool pump: In addition to 2 power contacts, ReMI also has 2 solid state outputs. With an additional PEM 01/012 power relay, one can smartly switch the pool circulation pump, for example. Accumulation: An accumulation heater has its own control module that includes weather-dependent control and temperature protection. ReMi cannot replace this control but can take over the contact for night mode and switch this contact to night rate or injection. Or also avoid spikes by driving 2 separate zone modules in turn. Electric supplemental heating: An electric heater or IR panel with or without a built-in thermostat are ideal to quickly heat up an occasionally occupied space (bathroom, porch, office,...). With two lines of logic in the ReMI and a pair of 2-wire IoT plugs, you can smartly switch them according to priority on injection and/or weekly clock, peak,... and thus dramatically increase your own consumption of solar energy. Energy sharing: With a ReMI at one location, one can measure injection and transmit the values via IoT to a second ReMI, or a 2-wire IoT plug at another location and consume at sun.* Dynamic tariffs: In Q1 2024 comes the opportunity for ReMI to switch to dynamic energy tariff.* More on this in a future newsletter. Priority/Operating Time: Delay ON allows you to determine the order "which device switches first," while Delay OFF allows you to turn a device ON for a minimum time.*This functionality requires an MQTT license
fig. In the above logic, priority loads the boiler (min.20') at injection or at night, and only afterwards bid heaters. Smartgrid ready output(17) is active when energy price < 123 Euro/MWh.
MQTT licenses
Starting in 2024, MQTT Token will change from a one-time purchase to an annual license that must be ordered and activated through the 2-Wire website. For existing tokens, they must be renewed by July 2024. At the same time, the functionality of our cloud server is further extended to include switching on dynamic rates for the ReMI module, auto backup of the LoWi/ReMI configuration,...Automatic upgrade
We have recently added automatic firmware upgrade for the LoWi3 and the ReMI module. How to configure auto-upgrade is explained in the online FAQ.Wishing you a prosperous, healthy and happy 2024 !
Discover the LoWi3: Your WiFi energy display for the Digital Meter
Imagine having effortless insight into your electricity, gas and water consumption, measured directly from your digital meter and via smart plugs. That is exactly what the LoWi3 has to offer as an autonomous Web server. What to expect.
- View your energy consumption in real time with the LoWi3 P1 dongle.
- Independent web server without the hassle of apps or cloud storage at low resolution.
- Easy expansion with IoT meters, including smart plugs.
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Key Features:
- No hassle with cables, as the power comes directly from the digital meter.
- Everything is preconfigured; all you have to do is set your Wi-Fi password and a fixed IP address.
- Suitable for any device because the LoWi3 web server is platform independent and works in any web browser.
- Internal data storage means no need for apps, software or cloud storage.
- Enjoy real-time data updates every 5 seconds (power).
- Charts with a resolution of 5 minutes for the past 10 days, 1 day for the past 12 months, and 1 month for the past 2 years.
- LoWi3 records all P1 data, including voltage, current and power per phase and displays current counter readings, quarter peak,...
- Energy costs are calculated with the adjustable cost per unit of consumption and shown in the graphs.
- Easily export data to Excel or upload via HTTP to an external platform.
Pair LoWi3 with EnergieID for even more functionality and centralized management.
With the LoWi3 energy web server*, you can easily connect to EnergieID's open energy platform. It's a piece of cake: just create an account at www.energieID.be, copy your login information to the LoWi3 configuration page, and then have your data uploaded automatically. With the free version of EnergieID, you can already start tracking your energy consumption on a monthly and daily basis. If you want more detailed information, analysis and features, it is possible to join an EnergieID group and upgrade your file to EnergieID Premium. For Individual Users: Join an EnergieID group to qualify for the upgrade to EnergieID Premium. If your municipality, employer or organization is not yet active on EnergyID, we are counting on you as an ambassador to promote this tool to them. For Business Users: Through EnergyID groups, organizations and local governments can offer the expanded version of EnergyID to their customers, members, building managers or residents. This can possibly be combined with additional services such as energy coaching and technical support. EnergyID allows local governments and businesses to turn their energy and climate plans into measurable, concrete results. So, what are you waiting for? Pair your LoWi3 with EnergyID and start even more energy tracking today! *ReMI also interfaces with EnergieID and thus installations without digital meters, via modbus meters and pulse counters can also be read in.Why a Web server and not an app or cloud application?
We try to answer frequently asked questions about our energy monitors and meters on our FAQ page, including the question why we chose web servers. The biggest advantage is platform independence. With no need for software, app or licensing, you have easy access to configuration and visualization of connected meters from any device with a web browser within the home network. But there are other benefits. Read more about this at FAQ E3....Important firmware update:
With the introduction of the capacity tariff early this year, Belgian digital meters received a firmware update. In this update, the P1 protocol was also expanded to include current, voltage, power separately for each phase, quarter-hour power and a history of the highest monthly peaks, among other things. As a result, especially for 3 phase meters but also for mono phase meters, the data set requested from the P1 every few seconds is almost doubled in length. To overcome this change, we had to modify data buffer of LoWi and ReMI module. A firmware upgrade of your module is easy but necessary . LoWi upgrade can be done in 2 ways:(see also video at FAQ A7)
- Upgrade locally through the setup page:
In the setup page at UPGRADING select 'START' and confirm with ' adminLOWI '
- Manual upgrade via the switch on the online (WiFi + internet) LOWI stick:
Approx. 5 sec. press the LoWi switch until the LED is constantly lit in order to start the upgrade
ReMI upgrading can be done in 2 ways: (see also video at FAQ B5)- Upgrade locally through the setup page:
In the setup page at UPGRADING select 'START' and confirm with ' adminREMI '
- Manual upgrade via the switch on the online (WiFi + internet) ReMI module:
Approx. 5 sec. press the ReMI switch until the LED lights steadily to start the upgrade
Real-Time quarter power, grid voltage and power per phase, …
With the energy monitors LoWi3 or ReMI for homes, and Memo3 for buildings, in addition to energy consumption and energy cost, the current quarter power and highest monthly peak from the Belgian digital meter or from the 2-WIRE energy meters are read in and displayed on any device with a web browser within the (home) network.
But grid voltage, important for people with failing solar panels, and actual power per phase, to enable smart switching with ReMI or MEMo3, are also monitored along with time.
LeON and THEo
Each of these USB energy sticks with RGB LED give you instant insight into the current energy rate. With a quick glance at the color, you can see whether the day or night rate applies (RED/BLUE) and whether energy is injected (GREEN). But that's not all! The flashing speed of the LEDs indicates how much energy you are consuming or injecting. That way you know whether you can start the dishwasher or dryer on solar power (green), or whether it's better to wait a bit during peak consumption (red). THEo goes one step further and also measures room temperature and humidity. This data is then displayed live and historically on the linked web server(s). This allows you to understand the climatic conditions in your living space and adjust to optimal comfort. [full_width][/full_width]
MEMo3 shows the 'proper' operation of each building
Connect a Memo3 data logger web server via Modbus, wirelessly over RF or over Internet/IoT to the various energy meters in one or more buildings.
Surf to the MEMo3 IP address, give all meters a Modbus address and a name after which MEMo records meter readings every minute and stores them locally for up to 3 years.
Current readings, histories, energy costs are now accessible locally via web browser to anyone within the network, or remotely via the html app.
MEMo runs with no software, no subscription fees and completely separate from existing technologies. After only a few days of logging, one gets detailed visibility into the good or bad performance of the building and its larger consumers.
In addition to monitoring, there is also the ability to intelligently control certain large consumers, or to bill for energy costs over a set period of time based on meter readings.
Energy monitoring creates a great opportunity for the smart installer, easy monitoring can now be done in any building, new or existing.
Energy meters
The autonomous kWh meters are read every minute and provide insights on current and historical consumption over long periods of time. But calorimeters, Co2 meters, pulse counters, Fluvius meters, ... are also read by MEMO3.
Why a Web server and not an app or cloud application?
We try to answer frequently asked questions about our energy monitors and meters on our FAQ page, including the question why we chose web servers. Read more about this at FAQ E1....Firmware update LoWi3 and ReMI
A new firmware version is available for both the LoWi3 and the ReMI web server, for now as BETA afterwards publicly. On the website at FAQ you can read how to upgrade to the BETA version, or how to return to the public version: LoWi:
- Real-time quarter power and month peak display from the P1 port
- Accelerated auto decoding P1 telegram, update every 5 seconds
- AES128 encryption MQTT topics
- ...
- Switching on real-time quarter power from the P1 port
- Auto decoding P1 telegram: addition of power and current per phase, among others
- AES128 encryption MQTT topics
- Optimizing power consumption ReMI processor
- Continuous status monitoring controlled outputs
- Visualization quarter consumption on partial measurements
- ...
Energy sharing with ReMI
fig. Energy sharing
When you produce more electricity with your solar panels than you use yourself, the excess power will be fed into the grid. This surplus energy can be shared with yourself, such as for your own building at another location, or with others. Energy sharing is based on time quarters. This means that green power generated in a given quarter-hour and injected into Fluvius' public distribution grid will be available for use within that same quarter-hour. To start optimizing this "sharing," maw consumption at time of production, the injection from the digital meter is measured using a LoWi3 (or ReMI) module. This module is connected via the Internet to a ReMI (or WiFi-IoT plug) a few houses or villages away, to smartly switch some large consumers there at the right time. Without a digital meter, total and/or partial consumptions are measured by the linked 2-WIRE Modbus meters.
Fig. link over internet
Product in the spotlight
Fig. smart WiFi-MQTT energy plug
The WP.16A energy plug allows you to measure the energy consumption of your connected device and then smartly turn it on/off via the linked ReMI based on injection, rate, quarter power,...from the digital meter. A unique feature of this smart plug is the RGB LED indication based on power. This allows you to see at a glance how much power your device uses. The WP.16A energy plug is available with both Belgian PEN grounding and Dutch edge grounding.Heat your home with the sun
Start to monitor
Start 2023 with a good intention, track in real-time energy consumption and partial consumption inside or outside the home. Plug LoWi3 into the P1 port of the digital meter, connect to WiFi and instantly display current electricity and gas consumption on any smartphone or tablet within the home network. An additional IoT smart plug shows the energy cost of each household appliance locally or remotely, whereas a LeON or THEo USB flash drive indicates the set peak power like a red traffic light, or turns green when injected so you know exactly when to turn the dryer on. [two_third] In turn, automatic switching on peak or injection can be done with ReMI, the smart energy switch. more info on LoWi [/two_third] [one_third_last]
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Heat your home with the sun
The all-in-one ReMI energy switch shows injection and peak consumption from the digital meter and/or from the connected Modbus energy meters.
With simple "If then else" logic, you control the switching behavior of each of the 4 "smartgrid ready" contacts or the paired MQTT plugs. This way, one easily puts the 80% surplus solar energy into heating or cooling the home resulting in a large reduction in consumption, or switches a few large consumers to current quarter power with direct impact on the annual grid fee.
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The effect of these "smart controls," by the way, can be monitored in real time and start adjusting themselves if necessary.
This automated "good intention" leads directly to a prosperous year 2023.
more info on ReMI
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DC meter
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The new DC energy meter DCE.230 is designed for measuring and monitoring DC systems. The bi-directional DIN-rail DC power meter can measure important DC parameters such as voltage, current, power and energy. All data in the meter can be accessed via the LCD screen on the meter, or via Modbus RTU, or via pulse output.
The meter is DC powered, has an input voltage range up to 1000Volt DC, while the current input is adjustable according to the coupled DC shunt. DC shunts of 100A/75mV, 200A/75mV and 400A/75mV are available.
The readout of consumption values and measured values can be done via the display or on the linked web server ReMI or MEMo3.
More details about this meter can be found online : https://www.2-wire.net/product-categorie/energiemeter/
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Price List 2-WIRE 2023
Minor price adjustments will apply to some of our products as of January 2023. The price list end user with "deeplinks" to the product sheets and manuals can be requested here, net installer price should be requested through the electrical wholesaler.Wishing in advance a prosperous, healthy and happy 2023
Fluvius partner event ‘Energy transition’
Energy transition
In the coming weeks, Fluvius will be organizing a number of partner events. The main theme is the energy transition and what the role of Fluvius is in this as a grid operator. How will we charge our cars in the future? Can our nets handle this? 2-Wire is also participating, with solutions to smartly switch heating and large consumers in homes and buildings based on, among other things, injection and peak consumption. There are 4 sessions planned:- March 23, 2022 in Hasselt, Holiday Inn
- March 30, 2022 in Mechelen, Technopolis
- April 20, 2022 in Ghent, Ghelamco Arena
- April 27, 2022 in Kortrijk, Fluvius Kennedy Park
2-WIRE Product presentations
During these Fluvius events we show our latest developments, ReMI, the smart energy switch, and MEMo3, the 3rd generation Modular Energy Monitors. Both energy web servers register and display all current and historical energy consumption/costs in homes and buildings, and switch heating based on energy rate, injection, quarterly power,... The Fluvius premium SEW applies to both products. (Electrical Heat Control). You can download a product info sheet below by clicking on the bitmap.[one_half]
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[full_width]Prepare for the capacity tariff today! [/full_width]
Have you already installed a digital meter? Good for you, because such a digital counter is a good stepping stone towards smart energy consumption. Connect a ReMI and/or MEMo3 module to the digital meter and you are ready for the capacity tariff that will be introduced in 2022. With a REMI or MEMo3 you keep your (peak) consumption perfectly under control. What is the capacity rate? To avoid peak loads on the electricity grid, the Flemish energy regulator (VREG) will introduce the capacity rate for families and small businesses from July 2022. Instead of basing the 'distribution costs' section of your electricity bill solely on the kWh consumption from the grid, the new capacity tariff will take your peak consumption into account. For an average family this will be about 20% of the total electricity bill. It is therefore very important that you avoid consumption peaks. The calculation of your capacity tariff will be based on the 'quarter-hour power': the average power that you take off in 15 minutes. The highest quarter-hourly power that you use in a month is your 'monthly peak', which in turn forms the basis for calculating your average monthly peak. Each month, the average monthly peak is calculated by taking the average of the 12 previous monthly peaks. And that average determines the network tariff that you ultimately pay. It is therefore in your interest to keep your quarter-hourly power (or quarter-hourly values) as low as possible, so that your consumption does not show sharp peaks. Both ReMI and Memo register and monitor these quarter-hour peaks and with both you can smartly switch the heating or other large consumers. This way you not only increase your self-consumption of solar energy, but you also avoid too high quarter-hourly powers.[full_width]Project 'City of things'[/full_width]
In order to achieve the target "Ghent homes consume 30% less energy by 2030", it is important to map energy consumption of Ghent homes in order to gain insight into the impact of energy-saving renovations. In addition, Ghent wants to investigate how insight into energy consumption can motivate residents to take further energy-saving steps. In collaboration with the city of Ghent and with the EnergieID cloud platform, some 200 homes in Ghent will be equipped with a LoWi3 or ReMI web server and associated meters. [one_third]
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fig. In this installation, ReMI measures total consumption (electricity and gas) via its P1 port input, the yield of the solar panels is measured here via an EMM.220 MID.[/two_third_last]
Project 'Brussels Cruise terminal'
With a quay of 240 meters long and 12 meters wide, the Brussels Cruise Terminal is the new passenger terminal in the port of Brussels. Located in the outer harbour, next to the "Pavillons Meudon", the terminal is a berth for inland cruise boats up to 135 meters in length and with space for 200 passengers. The infrastructure of facility services offers ships at the quay the possibility to switch off their auxiliary engines and to make use of connections on the shore.The energy and water consumption of moored ships is registered here by a Memo data logger. The link with Plugin2drive offers customers service via mobile access and payment applications and ensures the automatic transmission of the electronic invoice. (fig below: Brussels Cruise Terminal)
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Online training via video tutorials
Digital meter, energy monitor, increase self-consumption, avoid peak consumption,... This all sounds very far away to the average installer. However, the threshold is small. Order one all-in-one ReMi from the better electrical wholesaler, go through the ReMI tutorials, connect it to your digital meter, connect the relays to the devices to be controlled and you're off to a lower energy bill. You can also find tutorials for the other web servers LoWi3, MEMo3,... on our website.New: WiFi-MQTT smart plug
The WiFi-MQTT plug measures the energy consumption of the connected consumer and can also switch it on/off. Switching can be done from the linked ReMI or MEMo3 web server or with the on/off button on the module itself. The communication for energy measurement and switching is done wirelessly via WiFi 2.4 gHz and then over the internet to the set MQTT account. You can then link this same MQTT account to one or more 2-Wire web servers (LoWi3, ReMI and/or MEMo3), or to your own app or cloud application and in this way read and/or switch the plug from anywhere in the world. . The RGB LED changes color depending on the current consumption. With the simple IF-THEN-ELSE logic in the ReMI or MEMo3 module you can switch the plug and therefore also the connected consumer on injection, peak, time and/or time. [one_half]
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[/one_half_last]ReMI, the smart energy switch
The ReMI web server reads consumption from the digital meter, from the linked modbus meters and from its 2 pulse counters. All measured consumption, histories and costs are stored locally and then displayed via web browser from any smartphone, tablet or PC within the home network.
In addition to inputs, ReMI also has 4 relay outputs, namely 2 bi stable relay contacts 16A/230V, and 2 solid state low power contacts. These 4 outputs can be used to connect to the smart energy input of the heat pump or the heat pump boiler. Or they can serve as an enabling contact for the electric boiler or accumulator heater.
With the adjustable “line logic” these 4 contacts can be controlled on energy rate, solar panel yield, peak consumption,… and/or on week clocks.
Indeed, ReMI not only replaces the former time switch to night rate, but also controls heating, household appliances, etc. to maximum self-consumption of solar energy, and takes grid load (peak consumption) into account.
You can then follow up the "logic effect" because ReMI provides real-time and historical insight into the major consumers. ReMI becomes your Personal Monitor.
Premium SEW via Fluvius
The Electric Heat Control premium is intended for the automatic control of electric storage heating, boiler, heat pump boiler or heat pump.
For Fluvius, this premium avoids the need for major investments in peak capacity for electricity production and in grid reinforcement to absorb peak consumption..
For the residential installation, the control ensures that the energy consumption is shifted to periods of renewable energy production (e.g. solar panels) in order to increase self-consumption, or to periods with a low market price.
The all-in-one ReMi web server and the modular MEMo3 web server are both eligible for the Fluvius SEW premium.
More information and the correct conditions for this premium can be found here
ReMI on Android,
or Windows, or IOS, or Alexa, or…
ReMI is a data logger web server. With the web browser you surf to your local energy website in the ReMI module. So you don't have to install an app or software, just make the connection with the home network once and every resident gets 'live' insight into the home consumption.
Extend ReMI
ReMI is an all-in-one monitor and switch but with a few possible extensions:
P1 Hub: up to 3 ReMIs on one digital meter
With the optional MQTT license you can connect ReMI via the internet with:
- THEo usb stick, current energy rate and air quality
- WiFi plug, measure and switch (available Q4-2021)
- or with 2-WIRE data loggers at other locations (LoWi3,ReMI,MEMo3)
ReMI tutotials
Digital meter, energy monitor, increasing self-consumption, avoiding peak consumption,… All this sounds very far away for the average installer.
However, the threshold is small. Order one all-in-one ReMi from the wholesaler, go through the ReMI tutorials, connect it to your digital meter, connect the relays to the devices to be controlled and you're off.
REL.44, a modbus slave variant of ReMI
The REL.44, a firmware variant of the ReMI, is a 'Modbus slave' i/o module. This module is connected to any Modbus master, as a Modbus relay, but also as a P1 to Modbus and/or as a pulse to Modbus interface. The list of Modbus registers can be found on the 2-WIRE website.
Likewise, several REL.44 modules, wired via Modbus, can be connected to a MEMo3, and configured and logically controlled from there on injection, peak, rate,…