Premium power from the sun!

BISOL is an innovative and customer oriented producer of high quality mono- and multicrystalline silicon photovoltaic modules, designed for both commercial and residential applications and suitable for grid connected and stand-alone systems.

Headquartered in Slovenia, BISOL finds its place predominantly in diverse international markets. The company started a representative office in Belgium and continues to expand its international activities by opening local offices in France and Italy.

BISOL products are a result of intensive research and development efforts, manufactured in a state-of-the-art automated production environment and comply with the principal international standards IEC 61215, Ed.2 and IEC 61730. Components and materials used in production originate from well established suppliers, are pre-certified, tested and meet the highest quality standards. Due to the strict quality control at each step of the production process, BISOL is able to offer its customers a 10-year product warranty.

BISOL photovoltaic modules are known for their long-term electrical stability, and for delivering an excellent power output and energy yield in low as well as in high irradiation areas. This performance is achieved through a very high shunt resistance, pre-sorting according to PMPP and IMPP (leveraging out module mismatch losses), a lowest NOCT of just 44 °C, negligible Yellowing Index of EVA foil, TÜV certified lowest 20-year equivalent degradation of just 0.5 % of the 5 % permitted lowest module capacitance C (for highly repeatable I-V curve and lowest mismatch losses) and whole spectrum highly transparent glass, among other detailed features that demonstrate the professional in-house expertise of BISOL?s personnel.

BISOL was one of the first companies worldwide to successfully implement three bus-bar and back-contact solar cells, and is strongly positioned as a glass-glass photovoltaic module manufacturer thanks to its VISTA collection.

BISOL's strategic goal is to support the extremely fast growth of the company, further expand its international activities and to continue to provide the market with a premium quality product that satisfies even the most demanding customers.

BISOL, d.o.o.
Latkova vas 59 A
Prebold / 3312
Phone: +386 (0)3 703 2250
Fax: +386 (0)3 703 2263
» info(at)
Founded 2006
140 employees

Business Areas

  • crystalline module manufacturing
  • system integrators /  project developer /  turnkey solutions
  • tracking systems

State-of-the art technology

Quality control at each step of the production process

10-year product warranty