How do you maintain uninterrupted power? Why vertical farming in India when the weather is conducive to intensive covered hoophouse farming year round? What i

How do you maintain uninterrupted power? Why vertical farming in India when the weather is conducive to intensive covered hoophouse farming year round? What is being grown? Lettuce is not an Indian staple and is neither calorie intensive or nutrient intensive. What other vegetables or herbs can they grow vertically?