THERMOECONOMIC OPTIMISATION OF SOLAR HYBRIDISATION OPTIONS FOR EXISTING COMBINED-CYCLE POWER PLANTS
Paper in proceedings, 2011

A model of an integrated solar combined cycle power plant has been developed in order to examine the performance of a combined-cycle plant when retrofitted with solar collectors. The model was then used for multi-objective thermo-economic optimisation of both the power plant performance and cost, using a population-based algorithm. In order to examine the trade-offs that must be made and identify ‘optimal’ hybridisation schemes and operating conditions, two conflicting objectives will be considered, namely minimum investment costs and maximum annual solar share. It was found that only small annual solar shares (~1%) can be achieved during retrofitting, but that the cost of the additional solar-generated electricity is comparably low, with equivalent levelised electricity costs of ≤10 c€/kWh.

Author

Erik Pihl

Chalmers, Energy and Environment, Energy Technology

James Spelling

Filip Johnsson

Chalmers, Energy and Environment, Energy Technology

IEA SolarPACES 2011

Subject Categories

Other Computer and Information Science

Other Mechanical Engineering

Energy Engineering

Information Science

Driving Forces

Sustainable development

Areas of Advance

Energy

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Created

10/7/2017