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Energy technology is evolving at a tremendous pace, and new players are constantly entering the market. However, it is rare to see a company that truly revolutionizes the industry. Sigenergy is one of those few – a Shanghai-based company that has risen to become a global pioneer in smart energy solutions with astonishing speed.
What if you could seamlessly manage solar generation, energy storage, and electric vehicle fast charging with a single, award-winning system? This is no longer the future. This is Sigenergy.
At Renewe, we are committed to bringing only the most innovative and reliable renewable energy solutions to the Finnish market. That is why we are proud to introduce Sigenergy as our partner. The respected analysis house Frost & Sullivan named them the global market leader in ”all-in-one stackable” energy systems in their 2025 report.
Now let's see why.
Forget about a wall of separate devices. Sigenergy's flagship, SigenStor, is the first true 5-in-1 energy storage system on the market. One sleek, modular device contains everything you need:
For the property owner, this means superior ease, faster installation and cutting-edge design. But it is also technically superior: it offers 0 millisecond UPS functionality, meaning that in the event of a power outage, the power will not be interrupted even for the blink of an eye.
Especially in battery storage, reliability and safety are top priorities. Sigenergy has protected its systems better than anyone else. Each battery module includes a five-level security system:
This is where Sigenergy really stands out. The system is designed to scale seamlessly from a small commercial space to an industrial hall.
1. Small and medium-sized businesses (Restaurants, offices, stores) SigenStor units can be connected in parallel, allowing for easy increases in both power and capacity. The integrated DC charger is ideal for a company's own fleet or customer charging.
2. Housing companies (Apartment and terraced houses) Sigenergy offers a perfect solution for housing associations. A shared solar power plant on the roof, a SigenStack energy storage in the basement and a smart Sigen Energy Gateway -gateway distributing affordable solar power to residents and shared EV chargers. This increases property value and reduces housing costs.
3. Large C&I sites (Industry, logistics) For large sites, we offer SigenStack-high-voltage battery solutions and efficient C&I inverters. These are designed to withstand heavy use and optimize energy consumption in large properties, enabling, for example, cutting power peaks and significant savings in transmission costs.
For the homeowner, the Sigenergy ecosystem offers complete peace of mind.
Sigen EV AC & DC chargers (V2H ready!) In addition to SigenStor's integrated DC charger, the range includes a stylish Sigen EV AC Charger -home charger. The best thing is that the system supports V2H/V2G (Vehicle-to-Home/Grid) functionality. This means that in the future you can use your electric car battery as a backup power source for your home during a power outage or even sell electricity back to the grid.
SigenMicro: The solution for challenging roofs If your roof is multi-shaped or suffers from tree shading, SigenMicro microinverters are the solution. They optimize the production of each panel individually, ensuring maximum benefit.
Are you interested? Ask us for a free survey and calculation of how much your property could save with Sigenergy systems, contact us.

All these devices connect mySigen-mobile application and Sign Cloud The system's AI doesn't just show you data - it does the work for you.
It learns your consumption habits, monitors weather forecasts and electricity prices. Based on this data, it automatically decides when to charge the battery with solar, when to buy cheap night-time electricity and when to sell at a high price. This is smart saving at its best.
Even though it is powered by advanced artificial intelligence, the operation is made clear and easy to understand – mySigen shows everything in real time without technical jargon. The system also monitors the condition of its components and notifies you of maintenance needs in advance, which increases safety and extends the life of the equipment.
Sigenergy is arguably the most advanced technology on the market. But the best technology is useless without professional design and contracting. This is where Renewe comes into the picture.
We are not just an equipment supplier. We are your partner. Our experts analyze your property – whether it is a single-family home, a housing company or an industrial hall – and design a Sigenergy package that is right for your needs. We guarantee that you get the most out of the system, safely and reliably installed. We ensure that your investment delivers maximum savings and peace of mind not only today, but also for years to come.
Are you ready to join the market leader of the energy era?
Book a free energy assessment, Renewe's experts will assist you in all stages of the project - from professional assessment and planning to high-quality contracting and maintenance.
Book a free survey: 010 660 3030 | info@renewe.fi | or fill out the form online
1. What exactly is the SigenStor 5-in-1 compared to a standard solar power system? SigenStor is a complete hybrid ecosystem. When traditional solar energy configuration requires, for example, a separate inverter, a separate battery and a separate charger, SigenStor combines all of these (and more) into one smart, AI-controlled unit. So you get an inverter, a battery and an electric car DC fast charger in one stylish and safe package.
2. Do I need a separate electric car charging station alongside SigenStor? Not necessarily. One of the great innovations of SigenStor is the integrated DC fast charger, which charges the car directly from the sun or battery without power loss. However, if you need more charging points or a traditional AC charger, the Sigenergy ecosystem also includes separate charging stations, all of which talk seamlessly to each other.
3. How does Sigenergy work together with, for example, a heat pump? Brilliant. Sigenergy is designed to be the energy brain of the entire property. Although it does not produce heat itself, the cheap energy or free solar electricity it produces and stores can be intelligently optimized for the largest consumers in the property, such as heat pump or cooling device into use, precisely when electricity from the grid would be most expensive.
4. What types of properties are the systems suitable for, small properties, companies or housing associations? Sigenergy is designed to scale perfectly. SigenStor is a great solution for a home or a small commercial space. For larger projects, such as housing associations or industrial buildings, we offer C&I-class SigenStack energy storage and high-power inverters. These solutions help to cut power peaks and optimize energy management for the entire property.
Expert perspective: The technical content and recommendations of this article are written by Mika Aaltonen, Renewe’s Senior Principal Energy Systems Designer. He specializes in the design of C&I (Commercial & Industrial) solar power plants and smart energy storage systems (BESS). He has over 15 years of experience in integrating demanding electrical ecosystems, such as 5-in-1 solutions like Sigenergy, into Finnish real estate and industry.