Business optimal design of a grid-connected hybrid PV (photovoltaic)-wind energy system without energy storage for an Easter Island's block

This paper presents a method for the business optimal design of a small grid-connected HES (Hybrid Energy System) comprised of photovoltaic panels and wind turbines, which seeks to minimize the LCC (Life Cycle Cost) of the system, ensuring at the same time certain level of system reliability. This i...

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Bibliographic Details
Published in:Energy (Oxford) 2013-11, Vol.61, p.248-261
Main Authors: Caballero, F., Sauma, E., Yanine, F.
Format: Article
Language:English
Subjects:
Applied sciences
business enterprises
Business optimal design
case studies
Easter Island
electricity costs
Energy
Equipments, installations and applications
Exact sciences and technology
Grid-connected HES (hybrid energy system)
Hybrid PV (photovoltaic)-wind energy system
Life cycle cost
life cycle costing
Natural energy
Net Metering
Photovoltaic conversion
prices
probability
renewable energy sources
sales
solar collectors
Solar energy
systems engineering
Wind energy
wind turbines
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Summary:This paper presents a method for the business optimal design of a small grid-connected HES (Hybrid Energy System) comprised of photovoltaic panels and wind turbines, which seeks to minimize the LCC (Life Cycle Cost) of the system, ensuring at the same time certain level of system reliability. This is measured in terms of LPSP (Loss of Power Supply Probability), which is computed by simulation. The proposed method allows the possibility to supply excess power generated by the HES to the utility grid at a fixed sales price or through a Net Metering scheme. The system and design method proposed represent a viable alternative for grid-only power supply in rural/remote communities. As an example, a concrete case study is presented involving 15 homes (1 block) in Hanga Roa city of Easter Island, Chile. Results indicate that the grid-connected HES is highly beneficial for the block since it reduces long term costs of electricity generation and supply while at the same time supporting their energy consumption with cleaner, renewable energy sources, and contributing to reduce the load size of the utility grid power supply.
ISSN:0360-5442
DOI:10.1016/j.energy.2013.08.030