The rapid development growth in Saudi Arabia sprouts many economic opportunities, especially in the energy sector. Renewable energy emerged in KSA since the 70s and KACST was the lead player in the region. Since then, KACST has been advancing the national industry and economy through renewable energy research, and made significant contributions to the solar energy field, from households to large utility scales. KACST also has played a critical role of localizing the solar technology in the kingdom that gave rise to PV-panel production line and reliability laboratory in the Solar Village (Al Uyaynah). Many scientific studies and reports have been published, and technologies implementation has been demonstrated. All efforts to accelerate and solve technology challenges are to advance industry. In addition, KACST contributes in the national economy and pursues less CO2 emission for a clean environment.