Intersolar 2025: What’s new?

At Intersolar 2025, three clear trends emerged: a surge in commercial PV, larger residential rooftop systems, and intelligent digital solutions. Here’s a closer look at what’s driving the market forward:

• Commercial storage and C&I PV step into the spotlight From medium-sized enterprises to megawatt-scale projects, commercial and industrial photovoltaics are now firmly in the lead. What began to surface in 2024 has solidified in 2025: commercial and industrial photovoltaics are driving the market. Manufacturers are stepping up with a broad spectrum of tailored solutions — from commercial-scale battery storage and midsize solar modules to dedicated EV charging solutions. Intersolar 2025 showcases an unprecedented range of C&I solutions.
• Residential systems are scaling up installations of 15 to 30 kWp are no longer the exception but becoming the standard. The line between residential PV and small-scale commercial installations is becoming increasingly blurred — particularly in sectors like agriculture. Manufacturers are adapting accordingly, launching high-capacity inverters with more MPPT channels, higher-output modules, and battery systems with capacities exceeding 20 kWh to meet the demand.
• PV systems are becoming more user-friendly While 2024 was marked by rapid digitalisation, 2025 is all about user friendliness. Manufacturers are consolidating their software ecosystems, shifting from standalone products to integrated platforms that combine energy management systems (EMS), apps, and monitoring portals. This is good for installers who want to save time and keep processes streamlined.

What are the new highlights at Intersolar 2025?

A total of 2,737 exhibitors showcased their portfolios across The Smarter E Europe 2025, with 1,450 of them presenting specifically at Intersolar. We explored the halls from A1 to C6 to discover the most exciting innovations. Here are the key highlights from Europe’s largest solar exhibition in 2025:

AIKO: Maximum efficiency – Without compromise

"We’re thinking future of photovoltaics," says Bernhard Weber, Director of Channel Marketing Europe at AIKO Solar. And at Intersolar 2025, that vision was on full display:

• Backside cell connectors: AIKO is well-known for its ABC (All-Back-Contact) technology, which relies entirely on rear-side contacts. In their third-generation modules, even the cell connectors are now positioned on the back, creating more surface area for AIKO’s high-performance cells.
• Record efficiency in Gen3:With its new Neostar 3S and 3S+ modules, AIKO once again sets new performance benchmarks. The glass-glass version reaches 475 Wp, while the white backsheet version achieves a remarkable 485 Wp. “It’s the comeback of the white-sheet module,” Weber remarks with a smile. And there's more to come: AIKO plans to increase the power output of the Neostar 3 series by 5 Wp every three months until early 2026 — all while maintaining AIKO’s built-in shading optimisation technology.
• Self-optimising modules:Weber also gave us a glimpse into what’s next: AIKO is currently developing a smart module — the AIKO Navigator. This future module will communicate directly with the inverter and provide output data at module level. There’s no launch date yet, but as soon as one is announced, we’ll keep you informed.

"We want to empower people to generate their own electricity with maximum efficiency," Weber concludes. “And people are responding — we’re expanding our production capacity due to high demand. Decentralised energy is the future.”

AIKO Solar @ Memodo

BYD: Storage Power 4.0

"We’re continuously evolving," says Florian Blaser, General Manager of EFT-Systems at BYD. At Intersolar 2025, the energy storage giant unveiled the 4th generation of the BYD Battery-Box — and it includes everything:

• New release – BYD HVB: Compact and powerful: the new BYD HVB battery delivers up to 30 kWh capacity with 25 kW output power, all within a cabinet just 1.30 metres tall. A standout feature is the Blade cell — BYD’s advanced, robust, and ultra-safe battery cell technology, making the leap from e-mobility to home energy storage.
• BYD Commercial Storage:The BYD Battery Max Lite Commercial Series covers the full spectrum of commercial and industrial applications, offering 30–90 kWh per cabinet and the option to connect up to 32 units in parallel.
• Upgrades to BYD Home Storage: The Battery-Box Premium HVM and HVS systems will now be equipped with the same BCU (Battery Control Unit) as the new HVB series.
• A Smart Future: BBYD is standardizing its software ecosystem. In future your customers will be able to handle monitoring, settings, and remote maintenance via a single app interface.

"From private homes to large-scale projects – we offer the right solution," says Blaser. “And with the new HVB and our proven systems, we offer installers maximum flexibility.”

BYD Commercial Storage @ Memodo

BYD Home Storage @ Memodo

Fox ESS: With power & plan

"Our solutions should not only be powerful, but above all, simple," says Junning Xu, Senior Product Manager at Fox ESS. And that philosophy was clearly reflected in their C&I storage solutions on display at Intersolar 2025:

• Fox ESS G-Max All-in-One: The high-performance, liquid-cooled commercial storage system (215 kWh capacity / 100 kW output) was the C&I flagship at Intersolar 2025. Pre-configured with pre-wired modules and an integrated cooling system, the unit requires only an AC connection and can be commissioned directly via the EMS.
• Easy entry into the commercial market: When it comes to EMS for C&I, you have a choice. “We’ve deliberately opted for an open cloud platform so that installers can tailor the system to their needs and continue using systems they already know,” explains Xu.
• Robust residential products: Fox ESS also introduced its latest generation of residential inverters: the Fox ESS H3 and H3 Smart. Combined with the high-voltage ECS2900 battery series (8.64–20.16 kWh), the manufacturer offers installers a fully compatible and well-matched system — ready to meet project demands in 2025.
   

"We’re confident: We’ve started 2025 with a stable market share and are consistently expanding our portfolio from residential to utility scale. Our solutions are ready," Xu concludes.

Fox ESS Commercial Storage @ Memodo

Fox ESS Home Storage @ Memodo

Fox ESS Inverters @ Memodo 

Fronius: Power and Quality – Made in Austria

"People want Fronius quality – and in 2025, we’re delivering it with new energy," says Andreas Atzlinger from Product Marketing Solar & Energy. After a year of realignment, the Austrian manufacturer returned to Intersolar with strong innovations:

• Fronius Reserva Battery : Fronius’ own storage solution, the Reserva, is the manufacturer’s biggest innovation. With up to 15.8 kWh capacity per unit, scalable to 63.2 kWh, it offers a compact design, easy installation, and robust safety features. “Demand for the Reserva has been enormous,” says Atzlinger with enthusiasm.
• Fronius Verto Plus: The hybrid version of Fronius’ latest inverter model is designed for large residential properties and small commercial applications, offering a power range of 15–33 kW. With three MPPTs and a dedicated battery input, it’s ideal for complex roof layouts and agricultural sites with multiple PV systems. Features include integrated arc fault detection and backup power up to full rated output — making it a comprehensive, state-of-the-art inverter package.
• Fronius goes digital: Useful for your Fronius end customers: The newly launched, AI-supported Fronius Energy Cost Assistant optimises electricity costs based on the real-time market electricity price, the weather forecast and user-specific consumption profiles – autonomously and automatically.

"We’re proud of our 'Made in Austria' manufacturing based on European value creation, data protection, and close-knit support for installers," Atzlinger adds. "Now is the perfect time to accelerate."

Fronius Home Storage @ Memodo

Fronius Inverters @ Memodo

GoodWe: Blade Power

“We’re receiving a growing number of enquiries about C&I solutions, but also for residential sector — energy management is a key topic here," shares Michael Gutwein, Solution Manager at GoodWe. In 2025, the manufacturer impresses with a smart software architecture and flexible storage systems:

• GoodWe Commercial Storage Solutions: The Lynx C 60 outdoor storage system offers robust scalability up to 180 kWh, peak shaving capability, and an integrated backup power function. For indoor installations, the Lynx C156 provides 156.67 kWh of capacity with 100 A charging and discharging power, all in a compact form.
• GoodWe's in-house Energy Management System: Launching mid-year, the new residential EMS – GoodWe EzManager 3000 – will unify the entire GoodWe ecosystem. This AI-powered platform combines dynamic load detection with smart control, and you can easily install it via the DIN rail.
• SEMS+ Monitoring Platform: With SEMS+, GoodWe PV systems can be remotely monitored and managed and automated updates keep software up to date. SEMS+ is designed for residential and commercial systems. 

"From single-family homes to commercial centres – we provide the right solution," concludes Gutwein.

GoodWe Commercial Storage @ Memodo

GoodWe Home Storage @ Memodo 

GoodWe Inverters @ Memodo

K2 Systems: A solid foundation

"Planning mustn’t become a bottleneck — it needs to grow alongside the market," says Rainer Burkhardt, Technical Sales Manager at K2 Systems. That’s why the German mounting specialist continues to rely on its practical K2 Base Tool, which is directly integrated with the Memodo Shop.  In 2025, K2 will show how well-thought-out systems make work easier.

• K2 PerfoRail: The new substructure for facade-mounted PV can now be designed using the K2 Base Tool. "Facade installations are still relatively small, but demand is growing quickly," explains Burkhardt.
• Dome SL6 EXPRESS: This flexible plug-in mounting system allows you to assemble modules of all sizes up to 2.5 metres in length using minimal tools, making it an ideal choice for larger, project-specific modules.
• Mounting System Trends: Rainer Burkhardt confirms that K2 is receiving an increasing number of enquiries in the C&I segment. “However, the classic residential business is also stable, with new installations being carried out,” he emphasises. “The industry needs scalable solutions.”

"Our mission is to deliver maximum application diversity with a minimal number of components — from the Base Tool to the rooftop," Burkhardt explains. "Installers should spend their time installing, not searching."

K2 @ Memodo

K2 Base Tool @ Memodo

KOSTAL: Time to KOSTALise

"We want to make it easier for installers – from the first click to the fully operational system," says Ashkan Rezaie, Internal Sales Manager at KOSTAL. In 2025, the long-established German brand continues to focus on user-friendliness, combining robust technology under the motto: Performance. Quality. Made in Germany.

• One login, one platform: With the new KOSTAL Terminal, installers can now access all KOSTAL apps and portals via a single, centralised interface. Whether you're planning a system, commissioning it on-site, monitoring it remotely, or managing updates and upgrades — it’s all integrated in one place.
• New smart meter and Solar Planner: Speaking of planning: With the new KOSTAL Solar Planner, you can plan residential and C&I systems. It is also integrated into the KOSTAL terminal.
• KOSTAL PLENTICOIN 2025: This flexible "PV as a Service" model continues to expand in 2025 and more options will be available now supporting dynamic electricity tariffs and smart meter integration.
• New inverter for commercial applications: Also unveiled at Intersolar 2025: the PIKO CI, KOSTAL’s new commercial inverter, is available to order for large commercial systems, with deliveries expected to begin in August 2025.

"The market is becoming more digital, more flexible — and we’re delivering the tools to support it," says Rezaie. 

KOSTAL Inverters @ Memodo

MENNEKES: A clear direction

"DC charging is becoming increasingly important in semi-public and public sectors — and we’re ready for it," says Wolfgang Dotzler, Sales Director South Germany at MENNEKES. The experienced wallbox manufacturer is focusing in 2025 on consistency, continuous product development, and suitable technologies to meet evolving demands:

• New DC charging station: At Intersolar, MENNEKES announced the upcoming launch of a DC charging station by the end of 2025 — designed to be a future-proof solution for public and semi-public charging infrastructure.
• Existing product portfolio: MENNEKES’ trusted AC wallboxes remain available and are constantly being further developed.
• Residential sector: Compared to 2024, MENNEKES is seeing a significant increase in demand for residential charging —  also for new installations.
• Bidirectional Charging : An important topic for the future. MENNEKES is actively participating in standardization committees. 

“When it gets serious about bidirectional charging, we'll be ready,” concludes Dotzler. “There will be no way around it in the future.”

MENNEKES Charging Stations @ Memodo

SolarEdge: Thinking Ahead

"We aim to continue setting technological benchmarks in the PV industry," says Rasmus Wilken, Marketing Manager at SolarEdge. At Intersolar 2025, the company underscored this ambition with innovations focused on integration, cybersecurity, and system intelligence:

• SolarEdge CSS-OD commercial storage: The scalable CSS-OD storage solution for C&I applications stands out for its flexibility, robust safety features, and future readiness — particularly for backup applications.
• SolarEdge ONE for commercial systems: The manufacturer is constantly developing the AI-supported EMS SolarEdge ONE: In 2025, the company launched a dedicated C&I version compatible with sensors from all leading manufacturers — ideal for existing systems. SolarEdge ONE for EV, an intelligent energy management solution for commercial EV charging infrastructure, will be launched in 2025 and a suitable SolarEdge charging station to be launched by year-end.
• SolarEdge Optimisers:  Powerful new 4th generation optimisers like the S650A and S1500 expand SolarEdge’s portfolio. Designed specifically for C&I installations, they maximise yield even in large-format project modules. “In VDE testing, our optimisers delivered up to 10.5% more power than other systems — and with higher thermal resilience,” explains Mascha Steyer, Senior Product Launch Manager.
• SolarEdge = cybersecurity: "In my opinion, cybersecurity is the most underestimated topic in the market – and at the same time the most important topic," emphasizes Rasmus Wilken. 

"50% of Fortune 100 companies already rely on SolarEdge," Wilken concludes. “In 2025, we’re seeing new momentum in the market — and we’re responding with full system power.”

SolarEdge Commercial Storage @ Memodo

SolarEdge ONE @ Memodo

SolarEdge Optimisers @ Memodo

SolarEdge Home Storage @ Memodo

SolarEdge Inverters @ Memodo

RCT Power: Growing on all fronts

"Our goal is to deliver the most efficient complete system — and that’s exactly what we do," says Björn Schenk, Sales Director DACH at RCT Power. In 2025, the German all-rounder impresses with robust solutions for both residential and commercial applications:

• Commercial Power with CESS:  RCT Power’s liquid-cooled storage systems — the CESS 200 (200 kWh) and CESS 700 (700 kWh) — offer comprehensive coverage for the C&I sector. The CESS 200 is available as both an AC version and a DC-hybrid, and includes a built-in backup power function. This can also be easily retrofitted to the larger CESS 700. Maximum output is consistently strong: 50% of nominal capacity — that means 100 kW for the CESS 200, and 350 kW for the CESS 700.
• HTW Test Winner Consecutively:  RCT Power has taken first place in the 2025 HTW Berlin Energy Storage Inspection for the sixth consecutive year. "This not only makes us proud, it also means up to €180 more in annual revenue for end customers," Schenk highlights.
• New Inverters and Storage Systems:  The new Power Storage DC inverter generation, with 5 or 8 kWh per module and 3 MPPTs, is designed to meet the growing trend of larger rooftop PV systems.
• Made in Germany: RCT Power is expanding manufacturing with a new production line in Wilhelmshaven and preparing module and inverter production in a facility in Augsburg. Data privacy also meets European standards: all servers for the RCT Power App are located within the EU.

"C&I is the defining topic for 2025 and beyond — and we’re fully committed to it," Schenk concludes. "With our HEMS Power Manager and strong EMS partnerships for both residential and commercial sectors, we’re well positioned on the control side."

RCT Power @ Memodo

SMA: Smart complete solutions

"For us, home and C&I are no longer separate worlds — we take a holistic approach to system design," says Lisa Spangenberg of SMA. In 2025, the German manufacturer showcases how software, electricity tariffs, energy storage, and inverters work seamlessly together:

• SMArt: For installations in Germany, the Sunny Home Manager 2.0 now supports full functionality for dynamic tariffs, compliance with §14a EnWG, and the new requirements from the 2025 EnWG amendment (German Energy Industry Act). For smart integration, SMA relies on the EEBus interface. Additionally, the manufacturer is consolidating system planning, commissioning, and monitoring via SMA 360° app.
• 3-Phase backup for all:  The new SMA Backup Kit allows even households with single-phase inverters to enjoy full three-phase backup power — ideal for retrofitting existing systems.
• C&I Power: At Intersolar 2025, SMA introduced the Sunny Tripower X 60, a C&I inverter, the successor to the Sunny Tripower CORE 1 for commercial systems. It supports oversizing up to 150% and features integrated arc fault detection and shading optimisation. The manufacturer also presented the Sunny Island X, which is specifically designed for integration with third-party batteries thanks to BMS communication via Modbus TCP and CAN bus with a wide voltage range.

"Since spring, the market has stabilised — and now we're seeing strong momentum with new trends like dynamic tariffs and complete systems," says Lisa Spangenberg. "With the SMA 360° app, we support our partners from planning to commissioning — for both residential and commercial projects."

SMA Inverters @ Memodo

SMA Home Storage @ Memodo

Sungrow: Clean energy solutions for your project

"Clean Power for All has never been more relevant," says Michael Solbrig, Senior Partner Success Manager at Sungrow. "We’re enabling energy independence — whether it’s a private home or a multi-megawatt project." At Intersolar 2025, Sungrow showcased smart solutions combining sector coupling, powerful storage, and seamless system integration.

• Commercial Storage: Sungrow PowerStack:  Sungrow’s scalable, liquid-cooled AC storage systems, available with capacities of 225 and 455 kWh will soon also be offered in a DC version, according to Michael Solbrig. The brand-new SH125CX hybrid inverter is best used for the DC models. You can find more information about Sungrow commercial inverters in our guide .
• Smart, Secure Energy Management (EMS): The Sungrow iHomeManager ensures efficient energy management and seamless integration into Virtual Power Plants (VPP). "This protects customers against power outages and helps optimise self-consumption," explains Solbrig. The EMS also integrates the smart monitoring app iSolarCloud.
• Sungrow Safety Standards: "With technologies like millisecond-range Rapid Shutdown and Arc Fault Detection 3.0, we’re setting new benchmarks in system safety," Solbrig adds.

The manufacturer is also planning holistically – production is to be climate-neutral by 2028, and the entire supply chain by 2038. "Sustainability isn’t an optional extra – it's fundamental to everything we do," emphasises Solbrig. As for market trends, Solbrig’s outlook is clear: "Alongside the booming C&I segment, we’re also seeing very high demand for powerful residential solutions. Now’s the time to think big."

Sungrow Commercial Storage @ Memodo

Sungrow Home Storage @ Memodo

Sungrow Inverters @ Memodo

Solar-Log: Managing Energy Flows – From PV Modules to EV Chargers

"Our biggest news? Clearly our new partnership with CLEMAP," says Cyrus Heravi, Head of Sales at Solar-Log. Indeed, the energy management systems (EMS) specialist has major market announcements for 2025:

• Ready for EV Charging Parks: Thanks to the partnership with Switzerland’s CLEMAP AG, finalised at The smarter E Europe, Solar-Log EMS is now compatible with 60 different wallbox models. The focus is on commercial EV infrastructure, enabling individual management of up to 100 charging points per site — including AC and DC charging, priority control, and PV surplus charging.
• Compatibility with commercial storage systems: Throughout the year, Solar-Log will progressively integrate additional commercial energy storage manufacturers into its system.
• Documentation for certifications: The Solar-Log PM Pro Analyzer software now independently verifies settings for the EZA controller as per VDE 4110 standards. The tool documents these checks in a ready-to-submit format, directly suitable for certification authorities. "This reduces paperwork and administrative effort for installers," Heravi proudly notes.

"One system, one hardware, one portal –  and everything works," Heravi summarises. "If you’re looking to smartly integrate PV, energy storage, and charging infrastructure in commercial applications, you need a system that’s intuitive — and built for growth."

Solar-Log @ Memodo

Trina Solar: PV for Every Situation

"PV solutions must fit every type of application — not just large rooftops," says Klaus Hofmeister, Sales Director DACH at Trina Solar. At Intersolar 2025, the manufacturer showcased an extensive range of innovative module technologies:

• New – Vertex Ultra Series: Trina Solar is developing the new Vertex Ultra module series, boasting an impressive efficiency of up to 24%. The Vertex Ultra series will be launched in 2025.
• Larger Module Formats: In addition to standard module sizes, Trina offers Vertex S+ — a midsize module specifically engineered for industrial rooftops. These larger modules significantly reduce labour and material requirements for mounting systems and wiring.
• Protection with Vertex SHIELD: The robust Vertex SHIELD module series features reinforced 2.5 mm glass to withstand harsh weather conditions and hail, making them ideal for regions with challenging climates such as Switzerland. Their durable construction also ensures enhanced resistance against snow and wind loads.

"Our goal is to make PV systems both user-friendly and robust," Hofmeister concludes. "Some projects need 450 Wp modules, others require 700 Wp — but all of them need reliable solutions."

Trina Solar Modules @ Memodo

Intersolar 2025 clearly showed that the solar industry is confidently looking ahead. Manufacturers are prioritising robust solutions for commercial applications, larger residential systems, and platforms designed to genuinely ease the installer’s workload. Many companies effectively utilised the quieter months of 2024 to consolidate their technologies, network their systems, and introduce practical solutions to the market.

What remains? Photovoltaics are here to stay — and the right products are already available. Whether it's energy storage, inverters, EMS, or complete system solutions: Those who install them today are building the future. We’re already looking forward to Intersolar 2026.