Eaton Energy Storage Guide for Residential and Small Business Buildings

Hybrid xStorage Energy Storage

Eaton's Hybrid xStorage system offers advanced energy storage solutions for homes and small businesses, enabling efficient management of electrical, hydraulic, and mechanical energy.

Powering a World That Demands More and More

Eaton provides energy-efficient and reliable electrical solutions for safer and more comfortable living and working spaces. They also offer hydraulic and electrical solutions to improve machine productivity, aeronautical solutions for safer and more economical air travel, and transmission and propulsion solutions for vehicles.

Learn more about Eaton's offerings at www.eaton.com/fr.

Principle of PV Energy Production and Storage

This section explains the operating principle of a photovoltaic (PV) installation, how to save money through self-consumption, the benefits of energy storage, how to define your PV installation, and how to make your projects a reality.

• Operating principle of a PV installation
• Save money through self-consumption
• Benefits of energy storage
• Define your PV installation with ease
• Make your projects a reality

Eaton Energy Storage Solutions

Explore Eaton's energy storage solutions, including the advantages of Hybrid xStorage, how to choose your storage system, and details on single-phase and three-phase energy storage.

• Advantages of Hybrid xStorage
• Choose your storage system
• Single-phase energy storage
• Three-phase energy storage

How Solar Systems Work

Solar energy is captured by photovoltaic (PV) panels, producing direct current (DC). This DC power is converted by a PV or hybrid inverter into alternating current (AC) for household electrical appliances. Surplus AC power can be used by appliances or sold to the grid.

Diagram Description: A house with solar panels on the roof connected to an inverter. The inverter is connected to a main electrical panel, which distributes power to electrical appliances, a charging station, and an energy meter. The energy meter is connected to the grid network. The diagram illustrates the flow of energy from solar panels to the home and the grid.

Save Money Through Self-Consumption

Self-consumption lowers electricity bills and reduces carbon footprint by utilizing carbon-free energy. By producing and storing energy at home, you can reduce reliance on the public power grid. Self-consumption also increases property value.

Self-consumption (Total or Partial)

Advantages:

• Carbon-free, local energy, environmentally-friendly initiative.
• Additional income: Energy purchase price set by law (e.g., €0.1276/kWh as of 01/01/2025 for installations <3 kWp).
• Self-consumption incentive (e.g., €260/kWp as of 01/01/2025 for installations <3 kWp).

Disadvantages:

• Indexed to energy prices.
• Dependent on weather conditions (sunshine, etc.).
• Must be installed by a certified installer.

Total Energy Sale

Advantages:

• Carbon-free, local energy, environmentally-friendly initiative.
• Additional income: Energy purchase price set by law.
• Purchasing obligation by licensed operator.

Disadvantages:

• Not indexed to energy prices (Grid power metrics).
• Must be installed by a certified installer.
• Can overload the grid locally, risk of dips if grid is weak.

Note: Purchase and resale prices per kWh as of 01/01/2025: Operator purchase €0.27/kWh, Resale €0.1256/kWh. It is more profitable to consume energy produced than to sell it.

Benefits of Energy Storage

Promote Self-Consumption

On average, a home uses only 30% of the energy generated via PV panels for self-consumption. With battery storage, this rate increases to an average of 70%.

Get PV Energy When You Need It Most

The paradox of self-consumption without an energy storage battery is that electricity production via PV panels is highest when energy consumption is lowest. PV panels produce energy between sunrise and sunset when user consumption is minimal. As a result, only a small amount of the produced energy is consumed.

Diagram Description: A graph showing average consumption of a home with PV panels without storage. It illustrates energy consumption and production throughout the day (Morning, Midday, Evening), highlighting the mismatch between solar production and home energy needs. The text indicates that power generation via PV panels is not aligned with home energy needs.

The Solution

Adding an energy storage solution with a hybrid inverter and storage batteries maximizes self-consumption. Surplus PV production is stored in the batteries. An energy storage system improves autonomy from the power grid and reduces carbon footprint.

Define Your PV Installation With Ease

1. What PV panel and inverter power rating should you choose?

   The installed capacity depends on the home's size, electrical equipment, and daily consumption habits to determine energy needs (in kWh).

2. What consumption mode do you prefer?

   Options include total sale of energy produced, total or partial self-consumption, or operation in backup mode.

3. In which region will the PV panels be installed?

   Electrical output of PV panels can vary based on location and sunlight.

The ideal power rating of the PV installation (in kilowatt-peak) can be determined based on this information and available roof surface. Generally, 3, 6, or 9 kWp is recommended for residential use.

Example

A house with a 100 m² roof, electric heating, partial self-consumption with surplus resale, Class D building, and 400 Wp PV panels, located in the Rhône department, would have its installed capacity determined by the PV installer. On average, a home with a 3 kWp PV installation has a monthly energy bill 20-30% lower than a home without photovoltaic panels.

Diagram Description: An illustration showing a house with solar panels and an energy storage unit. Text indicates an average annual consumption of 15,000 kWh. A 3 kWp (3,000 Wp) installation with 8 PV panels generates an average of 3,000 kWh/year, covering about 20% of consumption.

xStorage Lets You Make Your Projects a Reality

Consuming Clean, Carbon-Free Local Energy

A 100 m² house with an annual consumption between 9,000 and 15,000 kWh has a carbon footprint between 500 and 900 kg of CO2 per year. 1 kWh consumed off the power grid emits an average of 55g of CO2. A 3 kWp PV installation reduces these emissions by 20%.

Control Your Energy Bill

• Store energy from photovoltaic panels for later use.
• Homes with Hybrid xStorage reduce electricity consumption via the grid by 50% on average.

Avoid Power Supply Cutouts

With the built-in back-up trip output, critical loads remain operational during power outages. The storage capacity of the batteries determines the duration the building can be powered without a grid connection.

Increase the Value of Your Home

• Installing photovoltaic panels and an energy storage system increases home value.
• Photovoltaic panels can increase home value by up to 10%.

Schedule Your Consumption

• Schedule consumption of energy-intensive equipment (electric vehicles, heat pumps) using stored energy.
• Avoid exceeding contracted electricity amounts to prevent cut-offs.

Increase Your Energy Performance Rating

In the future, renting out homes with a DPE (Energy Efficiency Rating) of G, F, or E will be prohibited. Photovoltaic panels can improve this rating, especially during home renovation.

Diagram Description: An illustration of energy performance rating labels (A++ to E) for a house, indicating the potential improvement with photovoltaic panels.

Advantages of Eaton's Hybrid xStorage

Installation Speed and Scalability

The Plug-and-Play solution reduces installation and commissioning time by 50%. Energy monitoring is simplified via an application. The option of retrofitting batteries makes the solution scalable and accessible.

Modularity

The modular design allows for increased energy storage. Pre-determined combination codes prevent product selection errors. A single battery reference is used for both single-phase and three-phase systems, simplifying inventory.

Safety

The Hybrid xStorage system ensures technical safety and cybersecurity. The Plug-and-Play solution reduces on-site wiring and connection errors. The installer monitoring system allows for viewing installations and preventing misuse.

Advantages of Eaton Hybrid xStorage

Built-in Backup Trip Output

Hybrid xStorage features a built-in backup trip output with a transfer time of less than 20ms to power specific appliances during power outages. These devices are powered by photovoltaic production and available battery capacity. Loads not connected to the backup trip output will not be powered. Up to 80% of AC rated power can be supported, depending on the model.

Diagram Description: A schematic showing the connection of PV, LAN, CT, network meter, and critical loads to the inverter and battery system, illustrating the backup power functionality during a power outage.

Monitoring

Eaton offers two monitoring solutions: SOLARMAN Business for specialists and installers, and SOLARMAN Smart for end-users to visualize PV production and building consumption.

Applications for smartphones available:

• Quick Installation: Quick and easy configuration in a few steps.
• Precise Analysis: Data analysis to help optimize consumption.
• Appliance and Device Management: Monitor, modify, and control the system anytime, anywhere.

An All-in-One Product

Eaton Hybrid xStorage energy storage makes installation, commissioning, and maintenance easy with its inverter display and indicator lights on the batteries.

Inverter

Indicator Lights:

• A (LED Indicator): On when connected to the grid. Blinking (with other indicators off) when running off-grid with bypassed grid power.
• B (Indicator Light): On when the inverter runs off-grid.
• C (Indicator Light): Turns on (red) when a fault occurs.

Key Functions:

• D ('Back' key): Exit current interface or function. Enter configuration interface.
• E ('Up' key): Move cursor up or increase value.
• F ('Down' key): Move cursor down or decrease value.
• G ('Enter' key): Confirm selection.

Battery

Indicator Lights: Battery indicator, fault indicator, operating light.

Functions: Reset button for startup, standby, and reset.

Choose Your Storage System

Questions to Ask Yourself to Determine the Size of Your System:

• How much inverter power should you install based on PV panel surface area and power produced?
• How much battery storage capacity do you need for your energy consumption habits?
• Where will the Hybrid xStorage system be installed (inside or outside)?
• What connectivity is needed (Ethernet/Wifi or 4G)?
• Plan for a meter and current transformers if the distance to the system is over 20 meters.

Hybrid Inverter (Smart Inverter)

Features DC-AC conversion, self-controlled current regulation, MPPT for power production, a commissioning screen, and suitability for On-grid or Off-grid installations. Sizing is based on power rating in kW.

Battery Pack

Utilizes LFP (lithium iron phosphate) technology with 10,000 cycles. Allows storage of energy produced by PV panels. Storage capacity can be increased. The same battery is used for single-phase and three-phase systems. Sizing is based on capacity in kWh.

Accessories

Includes battery cover, bottom battery holder, inverter/battery connection cable kits, stick loggers for monitoring (Wifi/Ethernet/4G), single and three-phase meters with current transformers (CT), and switchboxes for parallel inverter installations.

Hybrid xStorage Single-phase

Single-phase Inverters from 3.6 to 6 kW

A Wifi stick logger is standard. For 4G or Ethernet connectivity, order as an additional accessory.

Battery

The battery is the same for single-phase and three-phase systems.

Accessories

Cables are provided at the right length to connect the inverter to the batteries.

Single-phase Combination Codes (Kits)

Eaton provides standard applications using combination codes for each application, grouping all necessary products to avoid errors.

Examples:

Composition of kit XSTHS1P036BP05V1

Composition of kit XSTHS1P060BP25V1

With the modularity of the Hybrid xStorage single-phase range, 4 main part numbers in stock lead to 15 solutions (Combination codes).

Three-phase Hybrid xStorage

Three-phase Inverters from 8 to 12kW

A Wifi stick logger is standard. For 4G or Ethernet connectivity, order as an additional accessory.

Battery

The battery is the same for single-phase and three-phase systems.

Accessories

Cables are provided at the right length to connect the inverter to the batteries.

Three-phase Combination Codes (Kits)

Eaton provides standard applications using combination codes for each application, grouping together all products to form the desired solution and avoid errors.

Examples:

Composition of kit XSTHS3P080BP20V1

Composition of kit XSTHS3P120BP40V1

With the modularity of the Hybrid xStorage three-phase range, 4 main part numbers in stock lead to 12 solutions (Combination codes).

Learn More...

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Contact the Eaton Sales Department

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Toll-free number: 0 800 336 858

Website: www.eaton.com/fr

Eaton is a company specializing in energy management with $24.9 billion in sales in 2024. Eaton offers energy-efficient solutions that help customers manage their electrical, hydraulic, and mechanical energy consumption more economically, sustainably, and safely. Eaton employs nearly 90,000 people and markets its products in over 175 countries.

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