Simply put, a 100 kW on-grid solar panel system in India can cost you somewhere between ~Rs. 8% GST after you avail of a subsidy under the PM Surya Ghar Muft Bijli Yojana. . Monocrystalline panels are more efficient but expensive, while polycrystalline panels are more affordable but slightly less efficient. Which solar panels are the top rated? The 100-Watt 12-Volt Flexible Monocrystalline Solar Panel. . The Inverter Store's small solar system kits are the perfect choice for your small, temporary or experimental setup. 45 lakh* +. . The best we found at packing charging power into a small package is Oupes with its 100-watt portable solar panel at 8 pounds. It's lighter than some panels that are only 50 watts. 6 kW) of grid-tied electricity with (18) 590 watt Axitec XXL bi-facial model PS590M8GF-24/TNH, SMA Sunny Boy Smart Energy inverter, Sunny Portal 24/7 monitoring, disconnect box,. This package includes two 48V 100Ah LiFePO4 integrated communication batteries, 24pcs 195W N-Type bifacial solar panels, and a powerful 5000W off-grid solar inverter equipped with a 100A MPPT solar charge. .