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Solar storage

What are the best and most efficient ways to store solar energy? The technology is developing rapidly and there are numerous systems and products to choose from. What should prospective users consider from a planning and cost perspective? Read on to find out.

Fabian Thral (right) gives us the details of the new systems from Fenecon.

Fenecon – three new storage systems for C&I

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PV Guided Tours: Fenecon presents the Industrial XL with 1.5 megawatts and four megawatt hours in a new container format for large-scale projects, alongside a new flexible power pack for SMEs and the updated Commercial 92 in an innovative split tower design.

A legion of power – storage in Százhalombatta.

MET flips the switch on Hungary’s biggest battery project

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With a nominal output of 40 MW and a storage capacity of 80 MWh, the facility marks the latest in a series of energy storage investments by MET Group across Europe.

David Niehaus (right) presents the new Huwei products in Munich.

Huawei FusionSolar – storage with hybrid cooling

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PV Guided Tours: The system supplies three-phase backup power and utilises an intelligent EMS. The focus is clearly on safety and efficiency – including for the new, hybrid-cooled Luna2000-215kWh battery storage system for C&I. It has been awarded the highest safety certificate by TÜV Rheinland.

This week‘s top item: the new DC storage system from Fronius.

Fronius launches Reserva battery storage system

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The new DC storage from Austrian manufacturer Fronius fills an important gap in its product portfolio, making it a complete system provider. The Reserva is a high-voltage battery that provides almost loss-free charging and discharging power.

Large battery containers are opening new paths for investments.

Solar Investors Guide – Storage for revolutionising the grid

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Large-scale storage systems are gaining ground across Europe, driven by growing demand for grid stabilisation and peak load shifting. Italy, Great Britain and Germany are leading the charge. Download the new e-paper for free.

Alan Greenshields (right) from ESS discusses sustainable long-term storage technology.

Solar Investors Guide #4: Long-term storage with iron flow technology

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Podcast: Energy Center is an iron flow storage system from ESS Inc. in Oregon, United States. The storage device offers 1.16 MWh of storage capacity and a maximum charging capacity of 174 kW. This modular solution comes in a single container and can be adapted to numerous commercial and network applications. Alan Greenshields, Director EMEA of ESS, discusses term storage systems and the potential of redox flow technlogy with the sustainable materials of iron, salt and water.

A gleaming A-CAES installation at a Canadian mine.

Solid, safe, smart – and award-winning

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The smarter E Europe trade fair in 2025 demonstrated just how rapidly advanced storage technologies and system integration are evolving. This year’s award winners in the Energy Storage and Smart System Integration categories reflect the breadth of innovation and momentum that characterise this moment.

Sofar so good – Kenneth Frey of Sofar (right) explains the benefits of the system.

Sofar – new C&I storage systems

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CEO Talk: Power storage for C&I applications is booming. Sofar is expanding its portfolio with the launch of the new PowerIn system this year, and is ramping up sales across Europe. What's the strategy behind this push? Let‘s find out.

Leonard Friese (right) of Tesvolt presents the new Forton storage system.

Tesvolt – new outdoor storage container

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PV Guided Tours: The new Tesvolt Forton battery system enables commercial enterprises to participate profitably in energy trading for the first time. Thanks to high-temperature cells with LFP technology, classic applications such as peak load capping and solar self-consumption are now more cost-effective. A 15-year performance guarantee with two full cycles per day ensures a secure investment.

The ‘power room’ – home to a future-proof battery system.

Inertia-ready battery system from RWE goes live in Moerdijk

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An innovative battery energy storage system at RWE’s Moerdijk power plant in the Netherlands has begun commercial operation. It is the first installation of its kind to support inertia in the Central European electricity grid.

Big, bigger, biggest – BESS projects call for high capacity and cost-effectiveness.

New Sungrow platform targets grid-scale challenges

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Sungrow has introduced its PowerTitan 3.0 energy storage platform for utility-scale applications. Designed for today’s increasingly complex energy landscape, the system delivers standardised solutions with high flexibility, power density and safety.

CEO Bryan Liu (left) tells us all about his company’s latest innovations.

Zendure – AI-powered energy systems for homes

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CEO Talk: Discover the new AI-powered plug-in home energy systems, featuring intelligent energy forecasts, consumption planning and optimisation. Save on costs with real-time tariff data and seamless, secure control of storage systems.

Maximilian Münnicke from Huawei (right) takes a deep dive into new solutions for project busness.

Huawei FusionSolar – utility storage with a Prime security certificate

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PV Guided Tours: Huawei FusionSolar is unveiling its new Luna2000 utility-scale battery storage system with a capacity of five MWh. The current 4.5 MWh systems have already received the Prime safety certificate from TÜV Rheinland.

Michael Hierholzer from Rolls-Royce dicusses the complex projects in which the company is involved.

Rolls-Royce – managing complexity in large-scale storage

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CEO Talk: Demand for large storage systems is surging across Europe, but delivering them involves major challenges – from permitting and financing to construction and operation. Michael Hierholzer of Rolls-Royce explains why experienced and reliable partners are key.

Ampace develops smart solutions for intelligent and secure batteries.

Ampace – advancing lithium-ion battery technology

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CEO Talk: In a world driven by electric energy, Ampace is one of the forerunners of technology. From cutting-edge batteries to intelligent energy solutions, the company is fuelling the future for all kinds of applications – one charge at a time.

Peter Gutendorf (right) provides insights into the new solutions offered by EcoFlow.

EcoFlow – more intelligence, more yield

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PV Guided Tours: Intelligent systems are replacing standalone components and AI now manages storage systems, wall boxes and energy flows to make the most of solar power. It’s not science fiction, it’s already here. Still sceptical? Prepare to be surprised!

Tesvolt and Samsung team up for greater cybersecurity of battery systems (from left): Hyunwook Kim, Simon Schandert, Daniel Hannemann, JongSuk Lee.

Tesvolt and Samsung collaborate on battery cybersecurity

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The two companies are partnering to offer municipal utilities a 5.26 MWh large-scale storage system with comprehensive on-site project support, designed with enhanced protection against cyberattacks.

AI is a mighty tool for improving storage systems and energy supply.

Sigenergy – new app optimises energy management with AI

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PV Guided Tours: The new Sigenergy app uses AI to optimise energy management, with new features that support the integration of DC optimisers, bidirectional charging and energy tradin  – good news for cost-conscious users. The second-generation hybrid inverter, with battery packs and easy retrofit options, is now available.

Franz-Josef Feilmeier (left) of Fenecon in our CEO Talk 2025.

Fenecon – innovations driving C&I storage

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CEO Talk: The market for home storage is sluggish, while C&I and large-scale storage are gradually gaining ground. To boost sales, the right strategy is essential. The key question remains: What factors determine success in this market? Franz-Josef Feilmeier, CEO of Fenecon explains.