// Example of energy-efficient control of roller shutters and awnings (resulting in significant cost savings due to the sun's rays to heat the house in winter) and the accumulation of free solar energy
/ / Mfano wa nishati – ufanisi udhibiti wa shutters roller na awnings (kusababisha akiba muhimu gharama kutokana na jua; s rays kwa joto nyumba katika majira ya baridi) na mkusanyiko wa nishati ya jua bure