LOGIC:The projected 38% gross margin (excluding rent) assumes a D2C model for hardware, with manufacturing/assembly outsourced to leverage existing supply chains. Product COGS (components, ISI certification per unit, packaging) is estimated at 45% of selling price. Direct marketing and sales acquisition costs, including digital ads and local outreach events, account for 10%. Installation costs, including skilled technician labor and consumables in Chennai (e.g., wiring, conduit, permits), are a significant variable at 7% per unit. Rental impact is 'Medium' because initial operations might involve a small office in a mid-tier commercial hub like Guindy or an industrial shed in Ambattur for warehousing and light assembly/testing. Such spaces in the 2026-2028 timeframe are projected to cost ₹40-60/sqft/month. While not negligible, a lean D2C model can limit the physical footprint. However, scaling necessitates more robust warehousing, potentially impacting rent as a percentage of revenue if sales volumes don't grow commensurately. High fixed overheads related to TANGEDCO liaison staff and a dedicated customer support team for rebate queries further erode net margins, making efficient scaling critical.