+44-1518-081136Innovative silicon-based PV technologies to reduce electricity production costs
3rd International Conference on Materials Science and Engineering
October 07-08, 2019 | Frankfurt, Germany
Cosimo Gerardi
Enel Green Power, Italy
Posters & Accepted Abstracts : Mater Sci Nanotechnol
Abstract:
The costs per watt of the solar cell has dropped so fast that
the module manufacturing is a small fraction of the total
costs, and the balance of system cost, or commodity materials,
drive the cost of producing solar energy. Because of the cost
structure, increasing efficiency and average energy generation
are Today the most powerful levers for overall cost reduction.
Silicon Heterojunction (HJT) is an innovation in PV, which
can win the competition with mainstream technologies
based on consolidated diffusion processes in silicon. In fact,
by leveraging on high efficiency, high thermal stability, lower
degradation per year and high bifacial factor, HJT can lead to
a remarkable reduction of the levelized cost of energy (LCOE)
in €/kWh. The fabrication process of HJT is simpler and makes
it the most performing technology based on silicon, relying
on its compatibility with several advances that will allow the
solar cell to overcome the theoretical limits of silicon, aiming
at achieving more than 30% cell efficiency. In particular, multijunction
solar cells are the most promising path to increase PV
module performances, several approaches are explored to find
a tandem structure, which can be industrialized. Coupling with
an HJT bottom cell seems a viable path to obtain an industrial
application. We report on the efforts for the development and
industrialization of innovative Si heterojunction technology
towards more than 25% efficiency, as well as on the activities to
overcome the theoretical limits of silicon, aiming at more than
28%, through implementation of multiple junction structures.
Biography:
E-mail:
cosimogerardi@enel.comPDF HTML