Long-term Energy Generation Efficiency of Solar PV System for Self-consumption
Journal
Energy Procedia
Journal Volume
141
Pages
91-95
Date Issued
2017
Author(s)
Hsu, P.-C.
Wu, P.-H.
Wu, W.-H.
Lee, M.-J.
Yeh, J.-F.
Wang, Y.-H.
Tsai, J.-H.
Abstract
We have developed an isolated-type hybrid solar PV system (HyPV) operating under stand-alone PV mode or grid mode, interchangeably by an ATS (automatic transform switch) [1]. No solar PV power is fed to grid. The energy generation efficiency of HyPV is actually the same as the stand-alone solar PV which is usually lower than that of FIT (feed-in-tariff) PV systems (feeding all solar power to grid for tariff through a MPPT/inverter) due to the unbalance between battery storage capacity and variations of solar radiation and load demand. In the present study, we has shown from long-term field test of five HyPV systems, that the energy generation efficiency of HyPV is very close to that of FIT PV systems. © 2017 The Authors. Published by Elsevier Ltd.
Other Subjects
Electric power transmission networks; Solar energy; Systems engineering; Battery storage; Energy generations; Feed-in tariff; Load demand; Solar PV systems; Solar PVs; Stand -alone; Term field; Energy efficiency
Type
conference paper