[PRO BLOG] Lumon eRailing: A new opportunity for solar energy in urban living

An innovation that brings renewable energy to balconies

Construction and housing are undergoing a transformation as energy efficiency and sustainable solutions become increasingly important. Lumon eRailing is a new solution that integrates solar energy into urban living. It allows housing companies to generate electricity from their balconies without compromising the appearance or functionality of buildings.


Glazed balconies are already an excellent way to make better use of underutilized urban spaces. Now, Lumon eRailing adds even more value to balconies by enabling energy production. The first project has been completed in Lahti, where a housing company has adopted this new solution as part of a larger facade and balcony renovation.

Technology hidden within a stylish design

How does this innovation work? In Lumon eRailing, solar panels are integrated within the balcony railing glass. This means they do not take up extra space or affect the building’s aesthetics. The energy produced is transferred directly to either the apartment’s or the housing company’s electrical system, with all wiring neatly concealed beneath the handrail.


This solution is designed specifically for housing companies, helping to significantly reduce the need for external energy. For example, in the Lahti project, it is estimated that the housing company can cover up to 35% of its annual energy consumption with electricity generated by eRailing. This makes the solution particularly attractive for those looking to reduce electricity costs while improving the building’s energy efficiency.

Experiences from the first project

The housing company at Aleksanterinkatu 35 in Lahti, Finland was one of the first to utilize Lumon eRailing as part of its balcony renovation. The project started in 2022, and the designers involved considered eRailing a logical choice in terms of both energy efficiency and aesthetics.
Electrical planning was incorporated early on, allowing wiring and inverters to be discreetly placed. The result is a modern, sustainable, and almost invisible solar energy system that blends seamlessly into the building’s facade.

Is this the future?

Using solar energy in building structures is not a new concept, but Lumon eRailing makes it a tangible part of urban living. In city environments, roof and ground space for solar panels is often limited, but balcony railings offer a new opportunity without requiring additional structures or compromising space usage.


For housing companies, this could be a significant step towards more energy-efficient living. Especially in cases where a facade renovation is already planned, eRailing can provide added value without major additional costs.

Benefits of Lumon eRailing:

  • Generates renewable energy without separate installation structures
  • Improves the building’s energy efficiency
  • Reduces electricity costs for the housing company
  • Maintains the aesthetic appearance of balconies
  • Expands opportunities for utilizing solar energy in urban environments


Lumon eRailing is an example of how practicality, aesthetics, and sustainability can be combined in the future of construction. Could this be one of the solutions that make urban living more sustainable and energy-efficient?

Do you want to make your housing company more energy efficient?

Get in touch, and let’s explore together how Lumon eRailing can help your housing company reduce electricity bills and improve the property’s energy efficiency – without significant additional costs!

(Availability depending on the country.)

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