Financial Tribune - Households in some deprived regions in South Khorasan Province that have built solar panels on their rooftops are earning almost $75 per month, the head of the provincial Regional Electricity Company said.

"Close to 155 families have rooftop solar panels producing 5 kilowatts on average," Mohammad Ibrahim Shoraka said, IRIB reported Tuesday.

Each photovoltaic panel with one kilowatt capacity can generate 200 kW of power in 30 days. The state-owned Renewable Energy and Energy Efficiency Organization, aka Satba, buys each kilowatt of electricity for 8 cents, meaning households selling one kilowatt can earn $16 per month.