24 per watt on a solar inverter, not including labor costs. Most solar panel contractors charge around $50 to $100 per hour. Premium Technology Justifies Higher Costs: While SolarEdge systems cost 20-35% more than basic string inverters ($5,500-$9,000 vs $3,000-$5,000 for residential installations), the module-level optimization delivers 15-25% higher energy production, typically paying for the premium within 2-3 years. For a 160kW Solar Plant about 464 qty of poly solar panels of 345wp would be required or 320 qty of mon-perc solar panels of 500wp. For poly, Vikram / Renewsys Solar are reputable Indian brands which offer quality product at reasonable price. Trina Solar, Panasonic or Canadian solar well known. A 160Kw solar inverter of monophonic functionality represents the central parts of the solar power system as a whole. It converts direct current (DC) generated by solar panels into alternating current (AC) that can be widely applied. Prices also vary from city to city due to logistics, taxes etc. You may save $1,000 to $2,500 up-front by. With prices ranging from $0. While string inverters generally come with warranties ranging from 5 to 10 years, they may need replacing within the lifespan of the solar panels, depending.