Energy expert Vaqar Zakaria believes solar power makes “excellent economic sense” — and he lives by it. For over five years, his rooftop panels have slashed his bills, sometimes to zero, even allowing him to sell surplus electricity back through net metering. Last month, he took it further. After buying two electric vehicles, he has almost “declared independence” from the national grid. With more panels and doubled batteries, even his cars run on sunshine. “I am moving away from their fuel, and I don’t need their power,” said the CEO of Hagler Bailly, Pakistan, an Islamabad-based environmental consultancy firm, over the phone from Islamabad. “I call it the hand of God driving my car,” Zakaria said. He is already seeing economic gains from his investment. “The electricity I generate, including battery costs, comes to about Rs12 ($0.043) per unit, while it can be sold to the Islamabad Electric Supply Company at around Rs26 ($0.092) per unit.” However, he adds that he does not currentl...