Alt Co JSC has a large greenhouse located in Kresna, Blagoevgrad region. The energy efficiency measures financed by BEERECL included converting two boilers to natural gas, installation of a co-generator, and reconstruction and modernization of the boiler rooms. With the natural gas-fired co-generation unit, both the heating and electricity needs of the greenhouse are met during the cold seasons. The hot water produced by the boilers is used for heating the greenhouse.
Estimated Annual Figures