Željko Tomšić

Feasibility analysis of wind-energy utilization in Croatia

The competitiveness of wind powered generators built in Croatia has been investigated. Wind characteristics at suitable sites at 35-m height have been calculated by applying Weibull wind-distribution functions with altitude corrections suggested by Justus. Two sites on the Adriatic coast have been identified as promising locations and analyzed in detail, using a generally applicable method. Wind-power utilization at one of the sites with the best wind-energy potential in Croatia is now marginally competitive with fossil-fuel systems.

Modeling energy efficiency investment choices – a case study on Croatia’s residential sector

ABSTRACT This article presents a methodological approach for incorporating household consumption characteristics and investment choices into energy efficiency policy models. The approach used is based on country-level stated preferences survey for evaluating consumer decisions and attitudes toward energy efficiency. The decision-making process was analyzed and modeled with logistic regression and applied onto the existing single-family housing stock. By applying the described framework, policymakers, or any other subsidy providing authority aiming to reach specific energy savings target, can obtain the distribution of financial incentives among different income classes. The developed model provides a framework for cost minimization and energy saving maximization. The model provides the minimal level of subsidies needed to achieve energy savings goals or maximum level of energy savings possible with a predefined budget for energy subsidies. The model accounts for consumer disaggregation and all results are provided per expenditure groups.