But with so many options available, it is easy to get lost. That is why, in this article, we explain in a simple and practical way how to choose a solar battery and what aspects you should take into account to avoid making a mistake.

Power, Capacity and Inverter Compatibility: What You Need to Know

When looking for a solar self-consumption battery, it is important to pay attention to three key factors: power, capacity, and compatibility with your inverter.

1. Power: How Much Energy Can You Use at the Same Time?

Power indicates how much electricity the battery can deliver at a given moment. If you switch on several appliances at home at the same time (such as the oven, air conditioning, or an electric car charger), you will need a battery with enough power to avoid outages or limitations.

2. Capacity: How Much Energy Can You Store?

It is measured in kilowatt-hours (kWh) and tells you how much energy you can store in the battery. The higher it is, the more electricity you will have available when there is no sunlight. To determine what capacity you need, consider:

• How much energy you consume daily.
• Whether you use more electricity at night.
• How much independence from the electricity grid you want.

A good recommendation is not to go overboard or fall short. Oversized batteries are more expensive and may be underused, while smaller ones empty quickly and may wear out sooner.

3. Inverter Compatibility: Making Sure They Work Well Together

The inverter is the device that converts solar energy into usable electricity for your home. Not all batteries can be connected to just any inverter. That is why it is essential to choose a battery that is compatible with your inverter, so that the system works safely and efficiently.

Make sure that:

• The model is approved by the inverter manufacturer.
• It uses standard communication protocols (such as CAN or RS485).
• It offers direct or plug-and-play integration with your equipment.

Advantages of Choosing Modular and Scalable Batteries

Nowadays, many individuals and businesses opt for modular and scalable batteries, as they offer greater flexibility and adapt to each user’s real needs.

What Does It Mean for a Battery to Be Modular?

It means that it is made up of several independent modules. You can start with a small capacity and add more modules when you need more energy, without having to change the entire installation.

And Why Is It a Good Idea?

• Total flexibility: If you install more panels in the future, buy an electric car or your consumption increases, you can easily expand the battery.
• Easy maintenance: If one module fails, you do not need to replace the entire battery — just that block.
• Long-term savings: You do not have to make a large initial investment. You can expand gradually, according to your needs.
• Better use of space: They adapt to different types of homes or businesses, even when space is limited.

Ultimately, if you are considering a solar self-consumption battery, going modular is a safe bet for the present… and also for the future.

Tips for an Efficient and Safe Installation

A good choice does not end with buying the battery. It is just as important that the installation is carried out properly, following minimum standards of quality, safety and efficiency.

Here are some practical tips:

• Install in a suitable location: The battery should be placed in a protected, well-ventilated area, free from moisture or extreme temperatures. Avoid exposing it directly to sunlight or severe cold.
• Make sure it has a BMS: The Battery Management System (BMS) controls charging, protects against overcharging, and extends the lifespan of the equipment.
• Trust professionals: Look for certified and experienced installers. In addition to ensuring safety, they will help you comply with electrical regulations.
• Monitor your consumption: Some batteries allow you to see on your mobile how much energy you are generating, storing, and consuming. This helps you optimise your usage and detect potential issues.

Choosing the right battery for your solar self-consumption system does not have to be complicated. You just need to be clear about your consumption habits, have compatible equipment, and go for a solution that you can adapt over time.

A good solar self-consumption battery will give you energy freedom, reduce your electricity bill, and contribute to a more sustainable model. And if it is also modular, safe, and compatible with your inverter, you will be making a smart long-term investment.

Are you ready to take the next step towards energy self-sufficiency?

At IONLY, we are expanding our network of solar battery distributors across Europe and Latin America. We are looking for professionals who share our values: sustainability, repairable design, technological innovation, and genuine support. Below, we explain why joining our professional network could be the step that drives your growth.

Advantages of distributing sustainable European products

European manufacturing with regulatory guarantee

IONLY designs and assembles its batteries in Europe, complying with regulations such as the European Regulation 2023/1542. This ensures traceability, eco-design, repairability, and readiness for the digital battery passport. A strong value proposition compared to imported products without technical control or local support.

Products designed for the professional channel

IONLY does not compete with its distributors. We do not sell to the end customer. Our strategy is based on a trusted professional network, where each distributor is a key part of growth. Our products are designed for installers, engineering firms, and technical distributors, with clear documentation, detailed datasheets, and certified compatibility with leading inverter brands (Victron, SMA, Fronius…).

Modular, scalable, and flexible technology

Distributing IONLY means offering real and versatile solutions. Thanks to their modular architecture, our batteries adapt to both residential and industrial projects. This allows easy scalability and adaptation to new demands without replacing the entire installation.

Real sustainability, beyond marketing

IONLY is committed to LiFePO₄ technology not only for its safety and efficiency but also because it enables the production of batteries that are repairable, upgradeable, and have a low environmental impact. Our systems are designed to last, not to be discarded. This not only builds customer loyalty but also conveys a sense of responsibility that is essential today.

Conditions, support, and available regions

Working together does not mean signing and walking away. At IONLY, we support our distributors with practical tools, real technical assistance, and conditions designed to make everything work from day one. Here we explain what we offer and where we are looking for new partnerships.

What do we offer our distributors?

• Competitive and transparent commercial terms
• Ongoing technical training (in-person and online)
• Early access to new versions, products, and firmware/BMS updates
  
  
• Direct technical support, with no call centres or intermediaries.
• Visibility as an official distributor at trade fairs, on social media, and across digital channels.
• Marketing support and customised datasheets.
  
  

Our model is not transactional: we are committed to building long-term relationships.

Where are we expanding our network?

We are looking for distributors with presence, technical capability, and commitment in:

• Spain and Portugal (areas with partial coverage)
• France, Italy, and DACH countries.
• Nordic countries.
• LATAM: Mexico, Colombia, Chile, and Brazil

If you are already working in any of these markets and want to offer a European battery with added value, now is the best time.

Steps to join as a distributor and grow with us.

Becoming an official IONLY distributor is a straightforward process with no initial commitment. We want to get to know you and offer a proposal tailored to your business model:

1. Contact us via the website form or email us at marketing@ionlybatteries.com
2. We talk with you: we assess your area, volume, and technical profile
3. Access to the professional catalogue and terms
   
   
4. Initial training and technical support so you can start with confidence
5. Start of collaboration: you can now distribute LiFePO₄ batteries professionally, with direct support from the manufacturer

At IONLY, we design and manufacture lithium-ion batteries exclusively for solar storage. We are committed to building a cleaner, more efficient, and longer-lasting energy model. If you share this vision, we invite you to join us as an official distributor.

Let’s grow together. Sustainably, professionally… and profitably.

At IONLY Batteries, we work to help industries take advantage of this new digital era with storage and monitoring systems that integrate AI, Big Data, and industrial BESS batteries, achieving real and sustainable savings.

1. What is Energy 4.0?

Energy 4.0 is the application of digital technologies — such as AI, the Internet of Things (IoT), and real-time data analytics — to energy management in industry.
This enables factories to:

• Predict their energy consumption based on production.
• Detect inefficiencies in machines and processes.
• Harness renewable sources and storage to reduce dependence on the grid.

2. The Role of Artificial Intelligence in Energy Efficiency

AI in factories not only analyses data but also learns from consumption patterns to recommend and execute automatic actions:

• Adjust production during periods of lower energy costs.
  
  
• Activate battery storage systems when consumption peaks are detected.
• Integrate renewable energy to balance the internal grid.
• Identify anomalies that may anticipate equipment failures.

In this way, AI becomes an autonomous energy manager that reduces costs and improves resilience.

3. Real-World Application Cases

• Automotive plants: AI integrated into microgrids enables savings of up to 20% in electricity costs.
• Food industries: algorithms regulate cooling and ovens to minimise consumption during peak hours.
• Industrial data centres: combine AI + BESS batteries to ensure continuity without additional energy costs.

4. The Role of Industrial Battery Storage

Energy Storage Systems (BESS) are the perfect complement to intelligent AI-driven management.

• Store renewable energy generated within the factory.
• Supply electricity within milliseconds during demand peaks.
• Economic optimisation: charge when energy is cheaper and discharge during periods of high cost.
• Sustainability: reduce dependence on fossil fuels and cut emissions.

At IONLY, we offer repairable and sustainable industrial batteries, designed to integrate seamlessly into Energy 4.0 environments.

5. Benefits of AI and Energy 4.0 in Factories

• Real economic savings: up to 30% reduction in electricity bills.
• Greater sustainability: optimised consumption and reduced emissions.
• Operational continuity: prevention of outages and autonomous resource management.
• Data-driven decision-making: real-time reporting to improve production.

Conclusion

The combination of AI and energy efficiency is marking a turning point in industry. With the Energy 4.0 approach, factories achieve smarter management, greater resilience, and real cost savings.

IONLY Batteries’ energy storage solutions enable companies to take the leap towards this transformation, integrating AI, renewables, and repairable industrial batteries, fully aligned with energy transition goals and global competitiveness.

At IONLY Batteries, we develop energy storage and management solutions that enable the integration of reliable, intelligent, and sustainable microgrids in demanding industrial environments.

What is an industrial microgrid?

An industrial microgrid is a local energy system composed of generation (for example, solar panels), storage (industrial BESS batteries), and digital management systems, which can operate either connected to the main grid or independently in “island mode.”

These solutions provide industries with greater autonomy, reliability, and energy efficiency, while at the same time reducing costs and emissions.

2. Real-world cases of industrial microgrids

• Automotive sector: car manufacturing plants in Europe and Asia already use microgrids to ensure production continuity, even during main grid outages.
• Logistics centres: distribution companies implement microgrids with battery storage to ensure 24/7 operations without interruptions.
• Chemical and pharmaceutical industry: critical facilities with high energy demand rely on hybrid microgrids (renewables + storage + backup generators) to comply with environmental regulations and ensure stable processes.
• Data centres: combine solar energy + IONLY batteries with backup generators to maximise security and reduce the carbon footprint.

3. Why are they key to energy resilience?

1. Operational continuity: they allow operations to continue in the event of power cuts or grid instability.
2. Energy flexibility: they adapt to different renewable sources (solar, wind, biomass).
3. Economic efficiency: they reduce energy costs by optimising the use of renewables and battery storage.
4. Sustainability: they minimise emissions and support the transition towards industrial decarbonisation.
5. Immediate response: industrial BESS systems guarantee power supply within milliseconds, something that diesel generators cannot achieve.

4. The role of batteries in microgrids

Industrial batteries are at the core of modern microgrids. Thanks to technologies such as those developed by IONLY Batteries, it is possible to:

• Store surplus renewable generation and release it when demand requires.
• Reduce dependence on fossil fuels.

Implement repairable and sustainable systems, extending their lifespan and fostering the circular economy.+

5. Advantages of Implementing Microgrids with IONLY

• Scalable solutions: tailored to the energy needs of each industry.
• High reliability: systems designed for critical environments.
• Genuine sustainability: repairable batteries with a long service life.
• Technological innovation: integration with intelligent energy management software.

Conclusion

Industrial microgrids are not just a trend; they are a fundamental element in the energy strategy of any modern industry. They ensure energy resilience, optimise costs, and support the transition towards a more sustainable model.

With IONLY Batteries solutions, companies can design and implement efficient, repairable, and sustainable microgrids, aligned with energy transition goals and industrial competitiveness.

1. Trends and motivations

Emission reduction: diesel generators produce CO₂, nitrogen oxides and particulate pollutants. Batteries represent a zero local-emissions alternative, which is key to complying with environmental regulations.

Minimal maintenance: unlike diesel generators, battery energy storage systems (BESS) require far less maintenance and do not need physical fuel (source: Cummins).

2. How do industrial battery systems work?

Industrial BESS store electrical energy during periods of stability or high production and release it immediately when supply is interrupted.
These batteries provide an almost instantaneous response (milliseconds), which is vital to prevent interruptions in critical processes (source: Cummins).

3. Comparison: battery vs diesel generator

4. Current limitations and hybrid solutions

Although lithium batteries dominate the BESS market, their typical backup capacity covers only a few hours.
In contrast, diesel generators can continue running indefinitely as long as fuel is available.
For this reason, many industrial facilities adopt a hybrid configuration, combining batteries for immediate start-up with generators for extended backup (source: Arcadis).

5. IONLY technology: sustainable and repairable batteries

At IONLY we offer repairable industrial batteries, with locally available parts and specialised technical support. This extends their lifespan and promotes the circular economy.
Our mission is to produce energy storage solutions that are efficient, reliable and sustainable, always upholding high standards of quality and social commitment.

6. Advantages of choosing backup with IONLY batteries

• Environmental sustainability: clean energy, with zero emissions during operation.
• Continuous innovation: designs oriented towards market evolution and new technologies.
• Reliability and availability: robust systems built to high quality standards.
• Local repairability: reduces waste and enables fast technical support.

Conclusion

An industrial BESS not only has the potential to replace a diesel generator in many backup power scenarios, but also provides clear benefits in terms of sustainability, noise reduction, response speed, and operating costs.
When combined with generators in hybrid configurations, it offers an optimal solution.
In this context, IONLY’s repairable batteries represent an advanced, responsible alternative that is fully aligned with the energy transition goals of the industrial sector.

At IONLY, as manufacturers specialised in lithium-ion batteries for solar storage, we understand the demands of professional applications: continuity, robustness, scalability, and support. If you are considering incorporating a battery system into your business, here is what truly matters.

Let’s talk. Your energy deserves more than a standard battery.

Not all batteries are suitable for industrial applications. In installations with high consumption, critical loads or demanding environments, you need a battery that meets very specific standards:

1. LiFePO₄ Technology

Lithium iron phosphate (LiFePO₄) batteries offer greater thermal stability, longer lifespan, and electrical safety, making them ideal for industrial environments where load peaks are frequent. At IONLY, we work exclusively with this chemistry due to its proven reliability.

2. High Energy Density and Deep Discharge

An industrial battery must offer a high depth of discharge (DoD >90%) without compromising its lifespan. Our batteries are designed to perform at their best even with daily deep cycles, with over 6,000 real cycles guaranteed.

3. Professional Control Electronics (BMS)

It is essential that the system includes an industrial-grade BMS capable of managing cells, balancing, temperatures, communications, and safety on a large scale. Our systems include remote monitoring, industrial protocols, and active redundancy.

4. Prepared for Demanding Environments

We’re talking about resistance to extreme temperatures, IP protections, compatibility with industrial electrical panels, and customisable mounting solutions.

Scalability and Safety: Two Essentials in a Professional Battery

A company’s energy needs can change. That’s why the battery you choose must be able to grow with you:

• True scalability: At IONLY, we manufacture modular batteries that allow system capacity and power to be increased without redesigning the installation — from just a few kWh to several MWh.
  
• Active safety: Industrial batteries must go beyond mere regulatory compliance. Our solutions feature early fault detection systems, galvanic isolation, and a multi-layer safety architecture.
  
• Compliance with European regulations: We manufacture in accordance with current European directives, including the EU Battery Regulation 2023/1542. This not only ensures safety and traceability, but also readiness for future audits.
  

How to Choose a Reliable Supplier with Local Support

It’s not enough for the battery to work in a lab — it must perform in the field, with your installation, your climate, your control logic, and your day-to-day operations. Choosing the right supplier is just as important as the technology itself.

What should you expect from your supplier?

• Manufactured in Europe: This ensures quality, traceability, shorter lead times, and regulatory compliance. IONLY manufactures in Europe, using carefully selected components and quality control at every stage.
  
• Soporte técnico directo del fabricante: Nada de intermediarios o distribuidores sin experiencia en almacenamiento. En IONLY damos soporte a instaladores, integradores y servicios técnicos directamente desde fábrica.
  
• Clear and customisable technical documentation: Every industrial installation is different. We provide detailed technical datasheets, electrical schematics, and integration support.
  
• Long-term commitment: The lifespan of a professional battery can exceed 15 years. Choose a supplier that won’t disappear halfway through. At IONLY, we support our clients from design to after-sales service.
  
  
  

Are you looking for an industrial battery for self-consumption, backup, microgrid applications, or renewable energy integration ? Do you want a scalable, reliable system with real support?

We are IONLY, and you already know us: we manufacture lithium-ion batteries exclusively for solar storage — with a professional and transparent approach.

Let’s talk. Your energy deserves more than a standard battery.

What Is Curtailment?

Curtailment is an order from the electricity system operator —in Spain, Red Eléctrica de España (REE)— to partially or completely stop the generation of renewable energy, even when technical and environmental conditions are favorable. This phenomenon can be caused by two main factors:

• Grid congestion, that is, the infrastructure cannot transport all the energy generated.
  
• Excess supply compared to reduced demand, which can lead to zero or even negative prices.
  

This type of interruption, also known as curtailments, especially affects large-scale solar and wind installations, as well as certain industrial self-consumption systems.

What is the duck curve and why is it related to curtailment?

The term PV duck curve originated in California (CAISO, 2013) and graphically represents the imbalance between solar generation – which peaks at midday – and electricity demand – which increases in the evening. The result is a duck-shaped curve: low demand during solar hours and a sharp increase in the afternoon, when solar output drops.

This mismatch generates overproduction during the day which, if it cannot be stored or transported, inevitably leads to curtailment. In countries like Spain, with high solar irradiation rates and strong photovoltaic penetration, this curve becomes more pronounced during weekends or holidays, when demand is lower.

What is photovoltaic pricing (apuntamiento fotovoltaico) and how is it affected?

Photovoltaic Pricing refers to the ratio between the average electricity market price and the average price at which solar energy is sold during a specific period. When the grid is saturated and there is excess solar generation, the electricity price drops. As a result, the apuntamiento also decreases, reducing income for solar producers.

Low solar pricing is especially problematic when there are no storage systems in place, as it prevents capitalising on the most profitable hours. Without batteries, the energy produced at midday must be fed into the grid at minimal or even zero prices.

Main Causes of Curtailment in Spain

• Grid saturation: many plants are located far from the consumption point and are connected to insufficient infrastructure.
  
• Lack of distributed storage: without batteries, it is not possible to store surplus solar energy.
  
• Low-demand hours: weekends, holidays, or vacation periods.
  
• Delays in regulatory planning: lack of coordination between new renewable generation and evacuation capacity.

Consequences of Curtailment for Producers and Investors

• Direct economic losses: unsold energy represents a drop in return on investment (ROI).
  
• Impact on PPA contracts: in power purchase agreements, curtailment can lead to disputes or penalty clauses.
  
• Reduction of the performance ratio: technical indicators of the plants deteriorate.
  
• Investor uncertainty: reduces the attractiveness of the sector without clear policies supporting storage.

Technical Solutions to Curtailment

The main solutions involve providing the electrical system with greater flexibility:

• Energy storage (BESS): allows absorption of solar surplus and dispatch during peak demand hours.
  
• Digitalisation and forecasting: AI-based systems to anticipate grid congestion or price drops.
  
• Participation in flexibility markets: buying/selling in intraday markets or ancillary services.
  
• Smart demand management: adapting industrial consumption to hours of maximum solar generation.

What Role Do Batteries Play in Combating Curtailment?

Industrial batteries and self-consumption installations with storage are key to mitigating curtailment. They allow:

• Postpone solar feed-in to periods of higher prices.
  
• Maximise photovoltaic pricing (apuntamiento) and revenue per kWh generated.
  
• Avoid economic losses due to forced curtailment.
  
• Participate in new business models, such as energy communities or demand aggregators.

In addition, in industrial systems, batteries help improve power quality, reduce peak demand, and enhance system stability.

In addition, in industrial systems, batteries help improve power quality, reduce peak demand, and enhance system stability.

According to recent data, more than 110 GWh of renewable energy was curtailed in Spain in the first quarter of 2023 alone, mostly wind power. This phenomenon is expected to continue growing if structural solutions are not implemented.

New European regulations—such as Regulation EU 2023/1542—already include measures to promote battery storage, repairability, and eco-design. The mandatory inclusion of storage systems in new renewable energy parks is also being promoted.

Conclusion: towards a renewable system without waste

Curtailment is the direct consequence of partial success: we have installed a lot of renewable generation, but without the necessary infrastructure to take full advantage of it. If we want a clean, stable, and profitable system, we must integrate technologies such as energy storage and a smart grid that efficiently connects generation and consumption.

The solution is not to halt renewable growth, but to make it smarter and more resilient. And along that path, batteries and digitalization play a leading role.

What to consider when buying a solar home battery

Before choosing a battery for your self-consumption installation, it is important to be clear about several key criteria:

Chemical technology

Lithium-ion batteries – especially those based on LiFePO₄ (lithium iron phosphate) technology – offer greater safety, longer service life and a better useful discharge rate than other technologies such as lead-acid. At IONLY we rely exclusively on LiFePO₄ for its advantages in efficiency, thermal safety and sustainability.

2. Usable capacity and scalability

It is important that the battery is sized according to your consumption and generation habits. But just as important is that it can be easily scaled if your needs change. Our solutions are modular, so you can start with a minimum capacity and expand in the future without changing the entire system.

3. Compatibility and integration

A good battery must be compatible with your inverter and your energy management system (EMS). IONLY solutions are open and easily integrated, compatible with the main inverters on the market.

4. Real life cycles

Don’t just go by the theoretical figures. Ask how many real cycles the battery offers and under what conditions. Our batteries are designed for more than 6,000 real cycles at 80% DoD, with a slow and stable degradation curve.

5. After-sales service and warranty

Who will give you support if there is a problem? Where are the batteries manufactured? Does the company have traceability of each module? In IONLY we give real warranty from Europe, with direct technical support from the manufacturer.

Advantages of batteries “Made in Europe” versus “Made in China”.

The market is saturated with inexpensive imported batteries, but there are key differences you should be aware of:

• Manufacturing quality and control: European batteries, such as IONLY’s, are assembled under the highest quality standards, with full traceability of each cell and each BMS.
  
• Local technical support: If you buy from a distributor that imports Asian products, the support will depend on the intermediary. We provide direct support from the manufacturer, without intermediaries.
  
• Regulatory compliance: Europe is raising the regulatory bar with regulations such as EU 2023/1542, which requires sustainability, traceability, reparability and a digital battery passport. At IONLY, we are ahead of the regulation with products 100% designed for the European framework.
  
• Carbon footprint and sustainability: A battery manufactured and distributed locally has less environmental impact than one transported from Asia. In addition, IONLY is committed to eco-design and repairability to extend the life cycle of each system.
  

Why IONLY?

At IONLY we don’t sell batteries, we manufacture smart storage solutions designed to last. We focus exclusively on lithium-ion batteries for solar storage because we believe in energy independence as a driver of change.

• We design modular, scalable and repairable batteries.
  
• We assemble in Europe under technical and ethical standards.
  
• We are committed to transparency: every technical specification is justified, every component is traced.
  
• We accompany installers and professionals with clear documentation, agile support and training.
  
• We do not compete with our customers: we do not sell to the end user. We are a brand 100% oriented to the professional channel.
  

Are you considering adding solar storage to your self-consumption system? Are you looking for a reliable, compatible battery that is ready for future European regulations? Let’s talk. At IONLY we are here to help you.

At IONLY, we specialize in manufacturing modular and sustainable batteries based on LiFePO₄ (lithium-ferrophosphate) technology, specifically designed for stationary solar storage.
Join us to understand how its lifetime is measured, what factors affect it and why this technology is one of the most reliable on the market.

What does “charge cycle” mean and how does it influence battery life?

A charge cycle is the complete process of charging and discharging a battery. For example, if you use 50% of the battery today and the other 50% tomorrow, that counts as a complete cycle.

The service life of a solar LiFePO₄₄ solar battery is measured in cycles, not in years directly. The more cycles a battery can withstand without losing useful capacity, the longer it will last. And this is where LiFePO₄ batteries shine:

• A quality LiFePO₄ solar battery such as those from IONLY can achieve more than 6,000 cycles at 80 % discharge.
• Translated into years, this can mean 15 years or more of operation under normal conditions.

This makes LiFePO₄ technology one of the longest-lived technologies available today for solar storage.

Factors affecting the lifetime of a solar battery

Although technology is key, the actual duration of a LiFePO₄ solar battery also depends on how it is used and the environment where it operates. Some important factors:

• Depth of discharge (DoD): The deeper the usual discharge, the more the battery is strained. It is therefore recommended not to always discharge 100%.
• Temperature: Constant high temperatures can accelerate aging. At IONLY, we design enclosures and systems that guarantee optimal ventilation.
• BMS quality: The Battery Management System ( BMS ) is crucial for balancing cells, avoiding overcharging and extending service life. At IONLY we use high performance industrial BMS.
• Frequency of use: using the battery every day is not a problem with a LiFePO₄, but it requires good charge/discharge management to maximize its life.
• Proper charging: Using compatible and well-calibrated chargers prevents premature damage.

In short: a well-dimensioned and well-managed LiFePO₄ solar battery can last more than a decade with total reliability.

LiFePO₄ vs other technologies: which one lasts longer?

Compared to other common storage technologies, lithium-ferrophosphate has clear advantages:

As you can see, LiFePO₄ technology not only offers more cycles, but also greater safety, stability and a lower long-term cost of ownership. That’s why we at IONLY focus exclusively on this technology for all our solar storage systems.

Investing in durability and peace of mind

When choosing a solar storage batteryyou’re not just buying energy: you’re investing in stability, savings and long-term autonomy. With LiFePO₄ technology and intelligent management, you can forget about constant maintenance and premature replacements.

At IONLY, we design and manufacture systems that not only work, but are built to last. And if you have doubts about how to size your system or which battery is best suited to your solar installation, we will help you configure it without obligation.

European technology for a sustainable energy future

From our facilities in Rafelbunyol (Valencia, Spain), Alejandro Desco -CEO and industrial engineer- traveled to Dubai to show the world our innovative energy storage system based on LiFePO4 batteries. A product designed, assembled and certified in Europe, which complies with the demanding EU2023/1542 regulations on sustainability, traceability and reparability.

Designed for the new energy model

This type of solution, common in the Asian market, is now beginning to be implemented in Europe thanks to proposals such as that of IONLY, developed with local technology and aligned with the most demanding standards.

Its cobalt-free design, modular and repairable architecture, and local manufacturing make IONLY a unique option in the reusable solar battery market.

Sustainable batteries manufactured in Spain

During the event, our 5.4 kWh residential battery solutions were presented, available in 51.2 V and 204.8 V, ideal for solar home installations. We also announced the upcoming launch of our C&I (Commercial & Industrial) line with 43.2 kWh and 409.6 V, scheduled for 2025. And for 2028, we are planning a 3.4 MWh utility scale battery in a 20-foot sea container.

Guaranteed scalability and durability

All our batteries are designed to be reused, repaired and recycled, meeting the highest standards in eco-design and circular economy. In addition, we offer 8 years warranty and local technical service.

Institutional support and technological development

IONLY has the support of the Instituto Tecnológico de la Energía (ITE), with whom we collaborate in the development of tests, digital twins and advanced balancing algorithms. In addition, our project has been promoted with funding from IVACE and the Valencian Institute of Finance (IVF).

Patent in process and technological autonomy

Thanks to this support and our patent in progress, we continue to advance in the industrialization of batteries manufactured in Spain, with the aim of reducing dependence on the Asian market and offering a competitive, traceable and ethical product.

“The European battery was overdue. And from IONLY, we are determined to lead that change,” says Alejandro Desco, CEO of IONLY.

Key advantages of our reusable solar batteries

IONLY develops unique solutions that make the difference compared to other energy storage systems. These are some of the aspects that distinguish us:

• Local manufacturing in Spain, with more than 90 % of European added value
• Cobalt-free design with materials out of conflict zones
• Modular and repairable architecture for maximum service life
• EU2023/1542 compliant certification and battery passport
• Compatibility with all major inverters (Victron, Growatt, SMA…)
• Scalability up to 103.2 kWh per string
• Aesthetic integration: wall, rack or flush mounting
• Local technical service and flexible financing

Do you want more information?

IONLY designs safe, sustainable and European energy storage solutions, manufactured in Valencia to lead the energy transition. If you are looking for an efficient, scalable and future-proof solar battery, contact us or download our datasheet.
Full article in Levante-EMV click here