5BV.2.59 EXPERIENCE, GRID INTEGRATION AND SHADING 25 YEARS OF TECHNOLOGICAL AND ECONOMICAL LEARNING IN PV SYSTEMS WHAT ARE THE FINDINGS ON THE TECHNOLOGICAL AND ECONOMICAL SIDE FOR ONE GENERATION OF PV APPLICATIONS?

摘要

Long time experience by TNC Consulting over 25 years on design and operation of PV plants is used to look back on technological, economical and performance development and give an outlook on possible future challenges. The point of view of a system engineer is stressed, tying to take into account not only upfront costs and gains, but also performance over time and operational costs and developments. Longtime data is presented for exemplary PV plants as well as clustered data over a larger amount of more recent PV plants and a shorter period of time. Overall performance and yield is analyzed in absolute numbers, development over time for exemplary PV plants (back to 25 years) and in a cross-section over numerous plants for more recent PV plants, allowing for possible outlooks on future development. Cost structure of PV systems over 25 years shows a strong decrease in BoS as well as module and inverter costs, but also an increase for BoS in present PV plants. In order to reduce overall PV system costs, BoS costs must be understood correctly and reduced for future projects. Specific aspects from technological development are highlighted and their influence on overall performance and LCOE is assessed.