TDS imagwira ntchito pazida zofunika kuti ifike kumalo amtundu uliwonse kuti ibowole madzi anu bwino.TDS yadzipereka pakupanga akatswiri a DTH kubowola ndi zida zobowolandi kugulitsa ndi kukonza ma compressor a mpweya.Mndandanda wa mankhwala ali ndiMakhalidwe agawidwe yokhazikika, kapangidwe kophatikizana komanso koyenera, kubowola mwachanguliwiro, chuma ndi durability, otsika kulephera mlingo, etc. Iwo ankagwiritsa ntchito masauzandezomangamanga za migodi, kubowola anthu, kukumba geothermal ndi zina.