Custom Solar Panels

Italian OEM Manufacturer for Industry & Engineers — Any Size, Shape & Voltage

Custom Solar Panels for Any Application

For over 15 years, MR WATT has been designing and manufacturing fully custom photovoltaic panels at its workshop in Tivoli, near Rome. SunPower back-contact cells — the most efficient on the market, up to 24.5% — hand-laminated using our proprietary process. Any size from 50×50mm to 2000×1000mm, any shape, any voltage: if the standard doesn't fit, we build it to spec.

Our competitive advantage is production flexibility: we handle laser cutting of cells, matrix configuration, lamination, and assembly entirely in-house — meaning we can go from your specification sheet to a physical sample in a few weeks, without relying on third parties.

Engineering Custom Panels: The MR WATT Process

Every custom panel begins with your specification sheet — or a blank page if you're designing from scratch. MR WATT's engineers translate form, function, and electrical requirements into a manufacturable design, selecting cell technology, lamination, frame type, and connector configuration specific to your application.

For the pergola application, laser-cut back-contact monocrystalline cells were arranged in a custom matrix to achieve the 12V output target while maintaining uniform spacing for the semi-transparent aesthetic. The EVA/glass-glass construction provides frameless structural integrity and weather resistance rated for 25+ years of outdoor exposure.

Where Custom Solar Panels Are Used

Building-Integrated Photovoltaics (BIPV) — Facade cladding, roof tiles, glazed elements and skylights where solar panels must match architectural dimensions and aesthetics. Custom shapes, semi-transparency, and RAL colour options.
OEM & Industrial Integration — Solar panels designed as integral components of your product — from 50×50mm sensor node panels to 600×300mm enclosure-integrated chargers. Custom connectors, mounting brackets, cable routing.
E-Mobility & Transportation — Charging panels for electric bicycles, cargo vehicles, camper vans, and marine vessels. Custom footprints matched to available surface area, lightweight ETFE lamination.
IoT & Remote Monitoring — Compact panels for environmental sensors, weather stations, smart city infrastructure, and industrial telemetry. Any output voltage matched to your charging circuit.
Research & Prototyping — Single-unit prototypes with full production specifications. Ideal for product development, university research, and engineering validation before series production.
Extreme Environments — Aviation-grade panels for UAVs and solar aircraft, marine panels for buoys and vessels, arctic-rated modules for remote monitoring infrastructure.

Frequently Asked Questions

What sizes can custom panels be made in?: MR WATT manufactures panels from a minimum of 50×50mm to a maximum of 2000×1000mm. Any intermediate size is achievable with a manufacturing tolerance of ±0.5mm.
What is the maximum efficiency available?: With SunPower back-contact monocrystalline cells we achieve up to 24.5% conversion efficiency — the highest available for custom panels. For cost-priority applications, standard monocrystalline cells are also available.
How long does it take to produce a custom panel?: Standard lead time is 2–4 weeks from design approval to delivery. Fast-track service is available for urgent orders. Contact us for an estimate tailored to your project.
Can you produce non-rectangular shapes?: Yes. We use laser cutting for precision shaping: L-shaped, trapezoidal, hexagonal, circular, or any geometry from DXF/SVG CAD files. Tolerance: ±0.5mm.
What is the minimum order quantity?: We work from single prototype units upwards. There is no mandatory minimum for development batches. Series pricing applies from approximately 50 units, with volume discounts for larger orders.
What lamination types do you offer?: We offer 5 constructions: glass (>20 year service life), semi-flexible ETFE/PET (7–8 years), PCB+Epoxy Resin (2 years), PCB+PET (3–4 years), PCB+ETFE (7–8 years). The choice depends on application, weight allowance, and required service life.
Can I specify connectors and cable exit position?: Yes. Junction box position, cable exit direction, cable length, gauge, and connector type (MC4, JST, Molex, bare pigtail) can all be specified to your integration requirements.
Do you ship internationally?: Yes, we ship worldwide. Panels are packaged with dedicated protective padding and accompanied by full technical documentation and Made in Italy certificate of origin.