Hybrid inverters – advantages and disadvantages
A hybrid inverter is a device that combines the functions of a conventional photovoltaic inverter with a system that works with an energy storage unit. Its function therefore focuses on converting dir ...
Heating costs in Luxembourg in 2026
Heating costs in Luxembourg in 2026 can vary significantly. This is only partly related to the choice of heat source-whether it is electricity, gas, oil, or pellets. The price is driven mainly by anot ...
Heat pumps that are neighbor-friendly – noise, vibrations, and placement
A heat pump is a device that generally does not bother anyone—it is not too loud, so it should not cause conflicts. However, in certain situations its placement and installation can be quite trouble ...
Overpaneling and inverter sizing – how much DC oversizing is smart?
When planning a PV installation and trying to match the power of your solar panels to the inverter, you quickly discover that inverter sizing and PV system design have a major impact on long-term sola ...
We opened our first showroom in Luxembourg!
We’re thrilled to announce the opening of Voltmax’s first showroom in Luxembourg. Munsbach, October 14, 2025 — We’ve got it! This is a significant step for us: after years of worki ...
Air Conditioning – Luxury or Necessity in the Era of Climate Change?
In recent years, global warming has become increasingly tangible, and climate change is leaving a growing mark on our daily lives. We are facing ever hotter summers that bring not only discomfort but ...
How to stop street noise and bring quiet back into your life
Silence is a modern luxury Noise is everywhere these days, on busy streets, in city centres, and even in quiet suburbs. The constant sound of cars, noisy neighbours, and garden tools can seriously dis ...
Does a PV Installation Increase Property Value? Facts and Myths
Photovoltaics have become almost synonymous with modern construction. More and more often, we see solar panels on the roofs of single-family homes, commercial buildings, and even garages or garden she ...
Thermal Modernisation in Luxembourg: A Smart Way to Cut Bills
Introduction In a time of rising energy costs and growing environmental awareness, improving your home’s energy efficiency matters more than ever. For homeowners in Luxembourg, thermal modernisation ...
Voltmax and Earth Day in Luxembourg – Renewable energy education
Voltmax at the Sainte-Sophie School: Together on the Future of Our Planet In celebration of International Earth Day, we had the wonderful opportunity to visit the students at the École Privée Notre- ...