text: sun,mujhe sochna hai ki humare ghar ke liye solar panels lagwaane chahiye, kya tumhe pata hai yeh kitne efficient hote hain aur kitne paise bacha sakte hain?bilkul, aur agar hum energy-efficient appliances bhi lete hain, toh na sirf electricity bill kam hoga, par hum environment ko bhi help karenge, samjhi na?