Doragno Castle

The Building

Building pre-intervention

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Building post-intervention

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The castle of foragno, a private residence situated in Ticino, emerges from the thoughtful restoration and extension of an ancient medieval castle, now serving as a single-family house. This historic, unlisted building has been modernized to meet NZEB (Nearly Zero-Energy Building) standards, featuring an innovative roof integrated with photovoltaic systems and solar collectors. The transformation preserves the original stone walls, which are accentuated by large windows that seamlessly blend into the existing structure, marrying old-world charm with modern energy solutions.

More Details

The Solution

Solution post-intervention

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What is the Solution?

The design incorporates a photovoltaic system seamlessly integrated into both the south-east and south-west slopes of the roofs, optimizing solar energy capture throughout the day. This strategic placement ensures maximum efficiency in energy production, harnessing the sun's path. The PV system is designed with solar modules in monocrystalline silicon technology and 245 Wp nominal power.

Why Does it work?

The selection of roofing materials allows the integration of solar systems in order to make a uniform surface, that consider the aesthetic characteristics of the solar thermal panels and their geometry and position in the roof. Solar thermal modules are coplanar to the roof and the similar aspect to solar photovoltaics panels in order to minimize their visibility from the surrounding environment.

PROS

The photovoltaic (PV) system offers a seamlessly integrated solution that enhances the aesthetic appeal of the roof, blending in perfectly with its design. This integration not only maintains the original look and feel of the building but also avoids the visual clutter often associated with traditional solar panels. By combining functionality with style, this PV solution provides an attractive option for those looking to adopt renewable energy technologies without compromising on the architectural integrity of their home or building.

CONS

This photovoltaic (PV) solution, while innovative, presents several drawbacks. The most significant is its higher cost compared to standard PV systems, which may deter potential users due to the increased initial investment required. This elevated cost could also prolong the payback period, making it less appealing for those seeking quicker returns on investment. Additionally, the advanced technology used might necessitate specialized maintenance, potentially increasing long-term upkeep expenses and complicating the servicing process.

Type of installation

Replacement (building integrated - BIPV)

Part of the building

Roof only

Mounting system

aluminium brackets

Orientation

45

Slope

15

Area (m²)

100