Building Integrated Photovoltaics (BIPV), a compatible revolution

In previous editions of this Newsletter, I mentioned certain technologies that, without being heat pumps as such, had the potential to increase the possibilities of use in our projects when integrated together.

If you don't remember, here are the links:

The use of phase change materials in combination with heat pumps

Unveiling the Sunthalpanel: A Breakthrough in Radiant Heating and Cooling Technology

Today it is the turn of Building Integrated Photovoltaics (BIPV), a technology that is growing, especially in high-end projects, sustainable buildings and new constructions where aesthetics and energy efficiency are priorities.

What are Building Integrated Photovoltaics (BIPV)?

Building Integrated Photovoltaics (BIPV) is a type of solar technology that integrates photovoltaic (PV) modules into the structure of a building as part of its architectural design. Unlike traditional solar panels that are mounted on building roofs, BIPVs are incorporated directly into building elements such as facades, roofs, windows, or cladding.

Building Integrated Photovoltaics (BIPV) are used in various applications to seamlessly integrate solar energy generation into the structure of buildings. They are commonly applied in facades, where exterior cladding captures sunlight; in rooftops, where solar tiles or glass coverings generate energy; in solar windows, where photovoltaic glass allows light to pass through while simultaneously generating electricity; and in shading elements such as canopies or pergolas, which not only provide shade but also produce energy.

BIVP and heat pumps, an ideal match

When we conceive a project with a heat pump, it is common to think of photovoltaics. In fact, there are numerous options on the market that manufacturers provide for this integration (as I write this I realize that this deserves another article).

For this reason, another innovative solution with BIPV is a solution to consider when we think of future-oriented and sustainable buildings. In fact, the combination of Building Integrated Photovoltaics (BIPV) with heat pumps is gaining momentum, particularly in innovative pilot projects and demonstration buildings. These initiatives are often found in new constructions aiming to meet stringent sustainable building standards, such as Passivhaus or nearly Zero-Energy Buildings (nZEB). By integrating BIPV systems directly into the building’s structure, these projects seek to create a more seamless and efficient use of renewable energy sources while also enhancing the aesthetic and functional aspects of the architecture. On the following link, one project done in in Canton Glarus in Switzerland.

Real case in Canton

Despite the promise of this technology, the primary barrier to widespread adoption remains the high initial cost. Both BIPV systems and heat pumps require significant upfront investment, which can be a deterrent for developers and homeowners. Additionally, there are technical challenges associated with the integration of these systems. Proper sizing and alignment of both BIPV and heat pumps are crucial to ensure that they work together efficiently. Missteps in this area can lead to suboptimal performance and increased costs, further complicating adoption.

What can we expect in the future?

The truth is that such inventions or adaptations of existing technologies are common and you never know which one will be the final one. Looking ahead, I expect the combination of BIPV and heat pumps to become more common as long as the costs of BIPV technology continue to decrease and heat pump systems become even more affordable. Also, as we always mention, the growing awareness of climate change and the tightening of government policies on energy efficiency and the use of renewable energy are about to drive the wider adoption of this integrated approach.