Comparative impacts of wind and photovoltaic generation on energy storage for small islanded electricity systems |
| |
| Affiliation: | 1. Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand;2. School of Land and Food, University of Tasmania, Hobart 7001, Australia;1. Department of Mechanical and Aerospace Engineering, Jacobs School of Engineering, Center of Excellence in Renewable Energy Integration and Center for Energy Research, University of California San Diego La Jolla, CA 92093, USA;2. SpaceTimeWorks LLC, San Diego, CA, USA;1. Radiation Chemistry Laboratory, National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan;2. Environmental Engineering and Science Program, University of Cincinnati, 705 Engineering Research Center, Cincinnati, OH 45221-0012, United States;3. Institute of Chemical Sciences, University of Swat, Swat 19130, Pakistan;4. Nireas-International Water Research Centre, University of Cyprus, Nicosia 1678, Cyprus |
| |
| Abstract: | This paper addresses the annual energy storage requirements of small islanded electricity systems with wind and photovoltaic (PV) generation, using hourly demand and resource data for a range of locations in New Zealand. Normalised storage capacities with respect to annual demand for six locations with winter-peaking demand profiles were lower for wind generation than for PV generation, with an average PV:wind storage ratio of 1.768:1. For two summer-peaking demand profiles, normalised storage capacities were lower for PV generation, with storage ratios of 0.613:1 and 0.455:1. When the sensitivity of storage was modelled for winter-peaking demand profiles, average storage ratios were reduced. Hybrid wind/PV systems had lower storage capacity requirements than for wind generation alone for two locations. Peak power for storage charging was generally greater with PV generation than with wind generation, and peak charging power increased for the hybrid systems. The results are compared with those for country-scale electricity systems, and measures for minimising storage capacity are discussed. It is proposed that modelling of storage capacity requirements should be included in the design process at the earliest possible stage, and that new policy settings may be required to facilitate a transition to energy storage in fully renewable electricity systems. |
| |
| Keywords: | Storage Electricity Renewable Wind PV |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
