⚡ Reduxi Controller · Knowledge Base

EEG & GEA: Installation & Setup Guide

Complete guide in a single article: shared hardware basics, then separately the setup for an EEG (Point 6, MQTT) and for a GEA (Point 7, local via Wi‑Fi/RTU).

⚠️ Licensed electrician required

👥 Audience: installation partners & technicians

📋 In this article

Goal and basic principle of the installation
Participants with a generation plant or battery storage
Participants with pure energy consumption
- Connection to the smart meter / electricity meter
- Power supply for the P1 Ultra
App and cloud access
System setup overview
Setting up the EEG (P1 Ultra connection via MQTT)
Setting up the GEA (P1 Ultra connection locally via Wi‑Fi/RTU)
Summary
Common issues
Related articles

1 Goal and basic principle of the installation

For a joint generation facility (GEA) or a renewable energy community (EEG) to be controlled in real time, all relevant producers and consumers must be equipped with the appropriate Reduxi components.

⚠️

Plan for a licensed electrician early All work in or on the meter cabinet (mounting the controller and P1 Ultra, connecting to the meter and power supply) may only be carried out by an authorized electrician in compliance with local regulations. The electrician should already be factored into the scheduling — not organized only on the day of installation.

⚠️

Request credentials early (for an EEG) The MQTT connection (EEG, see ⁠Point 6⁠) requires a username and password for the Reduxi MQTT broker. These can be requested from Reduxi Support — ideally before installation begins, so they're ready to hand when setting up on site.

🧰

Tools & materials needed Have ready before starting:

P1 Ultra device(s) — one per meter point
Reduxi Controller (for producer participants)
Screwdriver for mounting in the meter cabinet
Power outlet near the meter cabinet (for the P1 Ultra's AC power supply)
Depending on the connection type: LAN/RS485 cable or the local Wi‑Fi credentials
Laptop or tablet with internet access (to access the Reduxi Configurator)
Access to the Reduxi Configurator or Reduxi Cloud

ℹ️

Two types of participants Within a GEA or an EEG, a basic distinction is made between participants with controllable generation or storage and participants with pure energy consumption. The hardware required depends on which group a participant belongs to.

There is no limit to the number of participating producers or consumers. What matters is only that the required measurements can be captured at the respective meter points and transmitted to the Reduxi system.

🔀

EEG and GEA: same hardware, different connectivity Points 2–5 apply unchanged to both setups. However, how the P1 Ultra devices subsequently communicate with each other and with the controller differs fundamentally. Already familiar with the basics? Continue to:

Point 6 — Setup for an EEG (MQTT)
Point 7 — Setup for a GEA (local via Wi‑Fi/RTU)

2 Participants with a generation plant or battery storage

For participants with controllable generation or storage, a Reduxi Controller is installed. This includes, among others:

Solar (PV) systems
Battery storage
Other controllable energy producers
Combinations of a PV system and battery storage

The controller is installed wherever the respective generation plant or storage system can be technically connected and controlled. It handles communication with the existing devices and enables control of the generated or stored energy.

Recommended

DIN rail variant

Mounted directly in the meter cabinet — space-saving and without a separate enclosure.

Text description of this image

Photo of a small white and light grey DIN rail enclosure device on a white background, with a logo printed on the front panel, two RJ45 network ports, a small button or slot and a green screw terminal block on the right side. No other readable text.

Stand-alone variant

Free-standing installation outside the meter cabinet, e.g. when there is no space inside it.

Text description of this image

Photo of a small dark grey flat box device seen from an angle, with two RJ45 network ports side by side on its front face, on a white background. No readable text or labels.

Multiple producers within the same GEA/EEG

If several producers exist within a community, each producer gets its own Reduxi Controller. Example:

Participant	Plant	Controllers required
Producer 1	PV system	1× Reduxi Controller
Producer 2	PV system + battery storage	1× Reduxi Controller
Additional producers	same principle	1× Reduxi Controller each

Photo of a light grey Reduxi DIN rail controller with two RJ45 ports and green terminal block

Text description of this image

Photo of a Reduxi Controller in a light grey DIN rail housing on a white background, seen from above at an angle. The top is printed with the reduxi logo and four small status LEDs with symbols (lightning bolt, circle, cloud, warning triangle). The front has ventilation slots, a small USB-C style port on the left, two RJ45 network ports side by side, a black small plug or card sticking out below the ports, and a green 4-pin screw terminal block on the right.

Reduxi Controller — DIN rail variant (mounted in the meter cabinet)

Photo of the dark grey Reduxi Controller stand-alone box with two RJ45 ports and green terminal block

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Photo of the Reduxi Controller stand-alone variant on a white background: a flat dark grey box seen from above at an angle. The top is printed with the reduxi logo and the word "CONTROLLER", with four small status LEDs. The front edge has a small USB-C style port on the left, two RJ45 network ports side by side and a green screw terminal block on the right.

Reduxi Controller — stand-alone variant (free-standing installation)

A detailed step-by-step installation guide can be found in the linked article:

⚙️ Reduxi Controller — First-Time Setup

3 Participants with pure energy consumption

For households or participants without their own controllable generation plant, a Reduxi Controller is generally not required. A P1 Ultra is sufficient to capture current consumption.

✅

EVSE, heating rods & similar also count as pure consumers Within an EEG, charging stations (EVSE), heating rods or similar loads can also be connected. These, too, don't necessarily need their own Reduxi Controller, since their consumption is captured via the P1 Ultra — a controller is only needed if this load is to be actively controlled.

Standard

P1 Ultra Plus

Connects via Wi‑Fi. First choice whenever Wi‑Fi is available on site.

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Photo of a small black device with a single upright antenna on its top left and openings on the front face, on a white background. No readable text or labels.

P1 Ultra Pro

Also offers a SIM card option — for sites without Wi‑Fi or when a Wi‑Fi connection is deliberately avoided.

Text description of this image

Photo of a small black device with two upright antennas on its top left and openings on the front face, on a white background. No readable text or labels.

Connection to the smart meter / electricity meter

Every pure consumer must be able to capture its current energy draw at the respective smart meter or electricity meter. For this, the P1 Ultra is connected directly to the meter. Depending on the meter model, the connection is made via:

P1 port — direct digital interface on the meter
Infrared interface (IR) — optical readout, when no P1 port is available

The P1 Ultra reads the meter's current measurements and makes them available to the Reduxi system / Reduxi Cloud for real-time calculation and control.

An overview of all supported meter models can be found in the linked article:

📖 Compatible meters & smart meters

✅

Meter not compatible right away? If the existing meter is not compatible with Reduxi out of the box, it will be integrated into the Reduxi system free of charge after a feasibility check.

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Meter replacement possible in individual cases In rare cases, the check may find that the existing meter cannot be integrated and must first be replaced. This should be clarified as early as possible in the installation process to avoid delays.

Power supply for the P1 Ultra

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A dedicated power supply is always required The P1 Ultra always needs its own power supply — regardless of the smart meter or meter model used.

Depending on the installation situation, the following options are available:

AC adapter into a wall outlet — the most common option; a power outlet near the meter cabinet should be planned for.
Via RS485 — with a local connection, the P1 Ultra can be powered directly over the RS485 link.
Via a USB-C adapter to 2 pins (+/-) — for connecting to an existing DC power source.

ℹ️

DIN rail controller (DIN) powers itself The Reduxi Controller in the DIN rail variant has its own DIN power supply and therefore needs no additional power source.

Before installation, check the following:

Which electricity meter is installed?
Is the meter compatible with Reduxi? (if not: free integration into the Reduxi system after a check — a meter replacement is necessary in individual cases)
Is a P1 port or an infrared interface used?
Which of the three power supply options is most practical on site?

Photo of the P1 Ultra: PWR port, RS485 terminals GND A B 5V, P1/LAN RJ45 port, antenna

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Photo of the P1 Ultra on a white background: a small black rectangular device with a black rod antenna on a gold-coloured connector at the top left. The top is printed "P1 Ultra" with the reduxi logo. The front face has, from left to right: a small port labelled "PWR" (flat connector), a 4-pin screw terminal block labelled "RS485" with pin labels "GND", "A", "B", "5V", and an RJ45 network port labelled "P1/LAN" with a green LED below it.

P1 Ultra Plus — connects via Wi‑Fi

Photo of the P1 Ultra PRO with two antennas, PWR port, RS485 terminal block and RJ45 port

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Photo of the P1 Ultra PRO on a white background: a small black rectangular device with two black rod antennas on gold-coloured connectors at the top left. The top is printed "P1 Ultra PRO". The front face has, from left to right: a flat connector port labelled "PWR", a 4-pin screw terminal block labelled "RS485" with small pin labels (GND, A, B), and an RJ45 network port with a small label above it and a green LED below it.

P1 Ultra Pro — Wi‑Fi plus a SIM card option

A detailed guide to connection and LED status can be found in the linked article:

🔌 P1 Ultra Plus/Pro — connection & LED status

4 App and cloud access

All Reduxi users can download the Reduxi app on their smartphone, create an account, and use it to view their own consumption or generation. In the app — as well as on desktop — a visual distinction is made between electricity that comes from the EEG or the joint generation facility and electricity drawn directly from the public grid.

Access level	Who	Visible data
Aggregator access	Authorized bodies / administrators of the EEG	All participants of the EEG — consumption and generation in total as well as per individual participant
Participant access	Individual participants (households, producers)	Only their own components plus relevant additional info such as grid draw and EEG draw

Authorized bodies of an EEG thus get aggregator access to the Reduxi Cloud with a view of all participants, while individual participants only see their own components and the additional information relevant to them.

Reduxi Cloud participant view Demo P1: benefits, solar production, weather, current power gauge, energy balance

Participant access — only the participant's own components and additional info are visible

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Screenshot of the Reduxi Cloud web app in dark theme, participant view, location name "Demo P1" at top left (no sidebar visible). Top cards: "Benefits" with rows Self Sufficiency and Total, columns Yesterday, This Month, This Year (Self Sufficiency: 0,00 €, 0,00 €, 0,00 €; Total: -94,12 €, -945,27 €, -1.631,02 €); "Solar Production" (Today 0 Wh, This Month 0 Wh, This Year 0 Wh); "Weather" (17°C, Zalog pri Moravčah, Mainly clear). Below: a semicircle gauge showing "0.02 kW Current power" and "NaN kW 15 min average", scale 0 kW to 0.2 kW. Period buttons: Day (selected), Week, Month, Year, and a calendar icon; date range "16. 09. 2026 - 16. 09. 2026" with arrows. Section "Energy balance" with a bar "Production" (about 82.84 kWh, split into two parts of about 41.42 kWh each, orange and green) and a second small bar "Consumption" (about 5.87 kWh, partly cut off). A bottom icon bar with four icons is visible. The image is cut off at the bottom.

Reduxi Cloud aggregator view: EEG Test Reduxi demo, location list, energy flow with grid, solar, battery 51%

Aggregator access — overview of all participants in the EEG (names in the list redacted)

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Screenshot of the Reduxi Cloud web app in dark theme, aggregator view. Breadcrumb at top: Reduxi DACH GmbH / EEG Test Reduxi / Demo. Left sidebar: search field, selected entry "Reduxi DACH GmbH" (teal), "All locations", a list of about 12 location rows with names, and at the bottom "Manage Location", "User settings", "Global Settings". Top summary cards: "Benefits" (Self-Sufficiency and Total, columns Yesterday, This Month, This Year; values 12,38 €, 156,78 €, 2.304,05 € and 23,25 €, 271,45 €, 3.323,89 €), "Solar Production" (Today 81 kWh, This Month 519 kWh, This Year 12.60 MWh), "Weather" (15°C, Schutterndorf, partly clear). Energy flow diagram: Grid -11 W, Solar 0 W, Other 872 W, central house icon -872 W, Battery storage 861 W with 51%, EV charger 0 W, HVAC 0 W (0 W below it). Bottom icon bar with four icons, the last with a red notification dot.

5 System setup overview

Role	Hardware required	Note
Producer (PV, storage, PV + storage, other controllable producers)	1× Reduxi Controller per plant	DIN rail in the meter cabinet or stand-alone
Multiple producers within the same community	1× Reduxi Controller per producer	scales as needed
Pure consumer (without own generation)	1× P1 Ultra Plus (or Pro if no Wi‑Fi)	no controller needed
Every relevant meter point	1× P1 Ultra Plus/Pro at the smart meter	basis of real-time data capture

The current measurements from all participants together form the basis for real-time control of the jointly generated energy. From here, the rest of the setup differs depending on the configuration — see Point 6⁠ (EEG) or Point 7⁠ (GEA).

6 Setting up the EEG (P1 Ultra connection via MQTT)

⚠️

Note: licensed electrician required Work in the meter cabinet may only be carried out by an authorized electrician (see ⁠Point 1⁠).

Architecture

In a renewable energy community (EEG), participants are often spread across several meter points or sites. So that all measurements can be brought together centrally, every P1 Ultra communicates via MQTT with both the Reduxi Cloud and the community's main controller. The main controller handles real-time control across all participants, while the cloud provides data storage, assignment, and app/web access.

Diagram: EEG example with 245 kWp PV, 400 kWh storage, Reduxi Controller and 25 households with P1 Ultra

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Diagram of an example EEG installation: a master site with PV system and storage supplying about 25 households. Left dashed box "Manufacturers / Suppliers" with the text "245 kWp solar power system, 400 kWh storage system". Inside: "PV Plant 245 kWp" (photo of a solar field) and "Storage 400kWh" (photo of storage cabinets), both connected by lines to the "Reduxi Controller" (black box with two network ports); the storage line is labelled "Modbus TCP". Below the controller: "P1 Ultra" connected to "Smart Meter", which branches to "Self Consumption" (house icon) and "Import & Export" (grid pylon icon). The controller connects to "Reduxi Cloud / App" (dashboard screenshot and phone). Right dashed box "Consumers, approx. 25 households": five rows, each "P1 Ultra", "Smart Meter", "Household 1" to "Household 5", connected by lines from the cloud/app. A teal box at the bottom: "additional participants can be added to the Reduxi system at any time". Bottom left dashed box "Data Exchange in Real Time (1s)": a Reduxi Controller icon and a P1 Ultra icon connected through a globe (www). Labels: "Reduxi Controller Receiver: Consumption data for individual sites and storage adjustments" and "Reduxi P1 Ultra Sender: Consumption data from sites is sent to the controller and to the cloud".

Example installation: EEG with a PV system (245 kWp) and storage (400 kWh) as master, approx. 25 participants — every P1 Ultra communicates with the Reduxi Cloud and the main controller over the internet

Prerequisites

Internet access at every meter point (Wi‑Fi or SIM connection via P1 Ultra Pro)
The Reduxi Controller is already set up as the community's main controller
P1 Ultra devices are already connected to the respective smart meter (see ⁠Point 3⁠)
Access to this EEG's MQTT credentials from Reduxi Cloud — the username and password can be requested from Reduxi Support; ideally do this before installation begins

Preparing MQTT credentials & the main controller

The credentials for the MQTT connection are entered directly at the main controller via its web interface (Reduxi Configurator). In the left-hand menu, follow this path:

Settings

Open Settings in the left-hand main menu.

System

Select the System submenu.

Connector

Continue in the Connector area.

MQTT v3

Open the MQTT v3 subsection — this is where the credentials are entered.

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Screenshot of the Reduxi Configurator page "Settings / System / Connectors / MQTT v3 connection", with a green link icon and a green cloud icon at top right. Left menu: Devices (+), Strategies (+), Utility Rate Plan, Settings (badge 1), Grid, Network, System (badge 2), Identifier, Open VPN, Connector (badge 3), Cloud, MQTT v3 (badge 4, selected), Flex, Modbus, EEBUS, Configuration (+), Time, License, Update. Status table: Client: (empty); Host: mqtt.reduxi.energy; Connected: green check mark with a refresh icon. Section "Mqtt connection": Host: mqtt.reduxi.energy; Port: 8883; Username: empty; Password: empty; Use SSL: toggle on (Yes); Verify server cert: toggle on (Yes); Server CA chain (PEM format): button Download; Client public certificate (PEM format): Choose File, No file chosen; Client private key (PEM format): Choose File, No file chosen. Section "Additional topics": text "No topics to display. Press button to add." with button Add. Readout interval: 60 s. Bottom buttons: teal "Clear connection configuration" and black Save.

Reduxi Configurator: Settings → System → Connector → MQTT v3 (credentials redacted in the image)

Under MQTT v3 connection, fill in the following fields:

Host & Port — address of the Reduxi MQTT broker (mqtt.reduxi.energy, port 8883)
Username & Password — the credentials provided by Reduxi for this EEG
Use SSL & Verify server cert — set both to Yes
Readout interval — 1 second is recommended for RECs (default value in the field: 60 seconds)

⚠️

Server certificate required The encrypted connection (SSL) also requires the server certificate (Server CA chain, PEM format). The Download button in the Connector area is deliberately greyed out in the screenshot: it only allows re-downloading a certificate that has already been uploaded — an initial download is not possible this way. The certificate must therefore first be uploaded once at the main controller before it can be retrieved again via this button.

The currently valid server certificate for the one-time upload is available for download here:

⬇ Download server certificate

Once the credentials are saved, the Connector page shows the active connection to the MQTT broker: Client ID, Host, and a green checkmark next to Connected. This can take up to about 1 minute to appear after saving.

Reduxi Configurator MQTT status: host mqtt.reduxi.energy, Connected shown with green check mark

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Cropped screenshot of the Reduxi Configurator showing a small table with the header row "Client". Row "Host": mqtt.reduxi.energy. Row "Connected": a green circle with a white check mark, and a refresh icon at the right end of the row. This shows the MQTT connection as active.

Reduxi Configurator: Connector status — connection to the MQTT broker successfully established

Configuring the P1 Ultra for MQTT

In addition to the main controller, every single P1 Ultra must also be set up for MQTT via its own web interface. To do so, open the Services tab in the menu (point 1 in the image).

P1 Ultra Services tab: MQTT active, broker mqtt.reduxi.energy, Custom preset, TLS on, CA file loaded

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Screenshot of the P1 Ultra local web interface (header: reduxi logo and "P1 - ULTRA"). Top tabs: Home, Network, Meter, Services (selected, teal box, badge 1), System. Sections in order. Cloud: green badge "Connected"; Enable: toggle Yes; text "Device is connected to the cloud server". UDP Server: red badge "Disconnected"; Enable: toggle Yes; text "Data from electricity meter will be transmitted via UDP port (3333)". Modbus: blue badge "Active"; Enable: toggle Yes; Modbus register structure: Reduxi (dropdown). MQTT (teal box, badge 2): green badge "Active"; Enable: toggle Yes; MQTT broker preset: Custom (dropdown); MQTT broker address: mqtt.reduxi.energy; Message type: Standard (dropdown); Username: empty; Password: masked with dots (hidden, with an eye icon). Second teal box (badge 3): Use TLS: toggle Yes; Verify server: toggle Yes; Server certificate CA (PEM format): file name "mqtt.reduxi.energy-CA 1 (2).pem" with a red delete (trash) button. Below the box: Client private key (PEM format): Choose File, No file chosen; Client public key (PEM format): Choose File, No file chosen.

P1 Ultra web interface: Services → MQTT (username redacted in the image)

In the MQTT section (point 2 in the image), enter the same credentials as at the main controller:

MQTT broker address — mqtt.reduxi.energy
Username & Password — the credentials provided by Reduxi for this EEG
Use TLS & Verify server — set both to Yes (point 3 in the image)
Server certificate CA (PEM format) — install (upload) the server certificate

This is the same server certificate used at the main controller — download it again here if needed:

⬇ Download server certificate

⚠️

Important: don't forget to save Once the MQTT data has been entered and the server certificate installed, the configuration on the P1 Ultra must be confirmed via Save — without this step, the changes will not take effect.

Next, note down the Unit ID of the P1 Ultra in the System tab (point 1 in the image) — it is needed in the next step when adding the device at the main controller.

P1 Ultra System tab: Unit ID row highlighted, firmware 1.0.25, save and reload buttons marked

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Screenshot of the P1 Ultra local web interface, tab "System" selected. Top tabs: Home, Network, Meter, Services, System. A pink banner reads "For security reasons, please change the default user account password." with a red button "Close". Section "System": IP address: 10.0.0.43; MAC address: (empty, redacted); WireGuard VPN IP address: a dot only; Unit ID: (empty, redacted; row highlighted with a teal box and badge 1); Firmware version: 1.0.25 (20260827000000); Hardware version: 1.1. Section "Firmware updates": Enable automatic updates: toggle No; Preferred update time: 00:00 - 04:00 (dropdown). Section "User account": Username: admin; New password: empty field with an eye icon; New password confirmation: empty field with an eye icon. A save (disk) icon button is highlighted with badge 2. Bottom row of five icon buttons: cloud upload, restore/reload arrow (highlighted with badge 3), a circular icon, a stack icon, and a red logout icon.

P1 Ultra web interface: System — note the Unit ID, save, and restart the device (Unit ID and MAC address redacted in the image)

Then:

Use the Save icon (point 2 in the image) to save the configuration
Restart the device using the Restart icon (point 3 in the image)

After the restart, the connection can be checked in the Services tab. If the MQTT connection is active, the MQTT section shows a green Active badge — data is then continuously sent to the MQTT server. Here too, this can take up to about 1 minute to appear after the restart:

P1 Ultra Services: MQTT status Active (green badge)

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Cropped screenshot of the P1 Ultra web interface, Services page: a grey row with the label "MQTT" on the left and a green badge with white text "Active" on the right.

P1 Ultra: MQTT connection active

Assigning participants in the main controller

Finally, every P1 Ultra must be added as a device at the main controller. To do so, select Add device in the left-hand menu (point 1 in the image).

Reduxi Configurator Add device, basic settings: type Energy meter, P1 WiFi / Ultra, name WHG 1

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Screenshot of the Reduxi Configurator, page "Device", step 1 of a 2-step wizard (step 2 is labelled "Communication channel"), heading "Basic settings". Left menu under "Devices": Heizstab Wärmepumpe, Iskraemeco AM550, Ochsner GMLW 9Plus, SolarEdge, SolarEdge Slave, Zaptec PRO, myPV, then the button "+ Add device" (highlighted with a teal box and badge 1) and "+ Add EEBUS device". Below: "Strategies", "Utility Rate Plan", "Settings". Form fields: Device type *: Energy meter (badge 2); Type *: P1 WiFi / Ultra (badge 3); Name *: WHG 1 (badge 4). Table "Include to strategy" with columns Strategy, Measurement devices, Regulated devices: row "Energy manager new" with Measurement devices ticked and Regulated devices not ticked. Buttons: Back, Next.

Add device: set Device type, Type, and Name

In the Basic settings step, enter the following:

Device type — Energy meter (point 2 in the image)
Type — P1 WiFi / Ultra (point 3 in the image)
Name — a label for the meter/participant (e.g. unit number or participant name) (point 4 in the image)

Then continue to the second step with Next:

Reduxi Configurator device wizard step 2: Connection MQTT, empty Unit ID, Device ID 1, Modbus unit ID 1

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Screenshot of the Reduxi Configurator device wizard, step 2 of 2 (two numbered circles at top), heading "Communication channel and device configuration". Fields: Connection *: MQTT (dropdown, teal box, badge 1); Unit ID *: empty, light blue field (badge 2); Device ID *: 1 with a spinner (badge 3); Modbus unit ID *: 1 (badge 3, one box around both fields). Buttons: Back (left), Test communication, and black button Done (badge 4).

Add device: Connection MQTT, enter the P1 Ultra's Unit ID (Unit ID redacted in the image)

Connection — select MQTT (point 1 in the image)
Unit ID — enter the Unit ID previously noted at the P1 Ultra (point 2 in the image)
Device ID & Modbus unit ID — leave at the default value 1 (point 3 in the image)

Finish with Done (point 4 in the image) — the participant is now created and assigned in the main controller.

Real-time control & priorities

In the main controller, go to Strategy → Energy manager → the Included items tab to define which devices are measured and which are actively controlled.

Reduxi Configurator strategy Included items: measurement devices and regulated devices columns

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Screenshot of the Reduxi Configurator, page "Strategy / Energy manager", tab "Included items" selected (other tabs: Optimization modes, Last measurements, Analyze, Archive, Details). Left menu: Devices (+), Strategies (-) with entries "Energy manager" (selected) and "Energy manager new", button "+ Add strategy", Utility Rate Plan, Settings (+). Three columns. Left column "Devices and strategies": Heizstab Wärmepumpe, Iskraemeco AM550, Musterstraße 1, Musterstraße 2, Ochsner GMLW 9Plus, SolarEdge, SolarEdge Slave, Zaptec PRO, myPV; below them a second group: Energy manager, Energy manager new. Middle column "Measurement devices and strategies" (teal box, badge 1): Iskraemeco AM550, Musterstraße 1, Musterstraße 2. Right column "Regulated devices and strategies" (teal box, badge 2): SolarEdge, SolarEdge Slave. Hint text at the bottom: "To remove supply or node items drag them outside frame". Black button "Save" at bottom right (teal box, badge 3).

Reduxi Configurator: Strategy → Energy manager → Included items

All pure meters/measurement devices (e.g. a consumer's P1 Ultra) must be listed under Measurement devices and strategies (point 1 in the image).
All devices that are to be actively controlled (e.g. inverter, wallbox, heating rod) must be listed under Regulated devices and strategies (point 2 in the image).
Assignment is done via drag & drop from the left-hand list Devices and strategies into the desired column.
Changes must always be saved via Save (point 3 in the image).

In addition, the Optimization modes tab (point 1 in the image, within the respective strategy) is where the export/import limit and the control strategy are set:

Reduxi Configurator Optimization modes: Default mode, export limit 11.2 kW, self-consumption, import limit 14.0 kW

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Screenshot of the Reduxi Configurator, page "Strategy / Energy manager new", tab "Optimization modes" selected (badge 1; other tabs: Included items, Last measurements, Analyze, Archive, Details, AI schedule). Left menu: Devices (+), Strategies (-) with "Energy manager new" selected, "+ Add strategy", Utility Rate Plan, Settings (+). Table with columns Name, Event description, Export limit, Goal, Import limit, Advanced. Row: Name: Default mode; Event description: /; Export limit: 11.2 kW (badge 2); Goal: Self-consumption (dropdown, badge 3); Import limit: 14.0 kW (badge 4); Advanced: edit icon. A second row below is empty, with edit and delete icons. Footnote: "* AI Energy Manager consists of four modules: AI Battery Optimization, AI PV Optimization, AI EVSE, and AI HVAC Optimization. Some modules are subscription-based and some are free; see each module below for details." Buttons: black "+" and black "Save" (teal box, badge 5). Top right: a green link icon and a green cloud icon.

Reduxi Configurator: Strategy → Energy manager → Optimization modes — export/import limit and control goal

Export limit & Import limit — maximum feed-in or draw power for the plant, in kW (points 2 & 4 in the image).
Goal — the control goal, usually Self-consumption for RECs (point 3 in the image): the electricity consumption of all participants is jointly covered by the generation plant(s).
Here too: confirm entries via Save (point 5 in the image).

Function test and commissioning

The function test for the EEG essentially consists of a plausibility check of the values configured previously:

All P1 Ultra devices show an active MQTT connection under Services (Active), and at the main controller the connection is marked as Connected under Connector (see ⁠Point 6.2⁠/⁠6.3⁠).
If Active or Connected doesn't appear, check the MQTT credentials, TLS settings, and server certificate at both the P1 Ultra and the main controller again — and make sure the configuration was confirmed via Save in each case.
Every participant is correctly assigned as a measurement device or a regulated device (see above).
The export/import limit and control goal (Self-consumption) match the plant's real-world conditions.
The incoming measurements from participants look plausible — no obviously incorrect or missing values.

Once all points are met, the EEG is set up and ready for operation.

7 Setting up the GEA (P1 Ultra connection locally via Wi‑Fi/RTU)

⚠️

Note: licensed electrician required Work in the meter cabinet — especially RTU wiring — may only be carried out by an authorized electrician (see ⁠Point 1⁠).