For solar systems installed at the point of end use, it is more economical to invest in EEC first, then solar (resulting in a smaller required solar system than what would be needed without the EEC measures).
Za solarne sustave instalirane na mjestu krajnje uporabe, ekonomičnije je ulagati u EEZ, a zatim solarno (što rezultira manjim potrebnim solarnim sustavom nego što bi bilo potrebno bez mjera EEZ).