Solar & Energy Efficiency · Property Services
Rooftop Solar Panel Installation
Solar panels turn sunlight into electricity and can cut or eliminate your power bill for decades. A good system is designed around your roof, your usage and your utility’s rules. NorTech connects you with a verified licensed solar contractor who studies your home, sizes the system and bids the installation in writing, including permits and interconnection.
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Sizing a system to your home and your bill
The installer starts with twelve months of electric bills to see how much energy you use, then models how much a roof of your size and orientation can produce. South- and west-facing roofs with little shade perform best. The design balances panel count, inverter size and your goals, such as covering most of your usage, preparing for an electric vehicle or adding a battery later. Ask for the production estimate, the assumptions behind it and how shading and panel degradation are handled.
Equipment, warranties and the electrical side
Panels vary in efficiency, durability and warranty, and inverters can be string, microinverter or optimizer-based. Quality racking and flashing keep the roof watertight. The contractor checks your main panel, which may need an upgrade to accept solar. Compare panel and inverter warranties, workmanship warranties and who services the system if the installer leaves business. A clear contract lists equipment models, system size in kilowatts and the production guarantee, if any. Ask the contractor for a shade report and a list of equipment model numbers, and compare at least two proposals using the same assumptions about usage and rates.
Permits, utility rules and what to expect
Installation requires a building permit and an application to the utility for interconnection. The contractor handles the paperwork, schedules inspections and waits for permission to operate before turning the system on. Utility rules about net metering, export rates and time-of-use pricing change over time and strongly affect savings. Installation usually takes one to three days, and approval can take weeks. Keep your monitoring login, contract and warranty documents together. Keep the permit, interconnection approval, equipment datasheets and monitoring login together, since you will need them for warranty claims and for a future home sale.
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