The payback is typically 6 - 7 years, if the system was purchased outright or if financed It could between 10 â€“ 12 years.
Solar panels carry 25â€“year warranties, with life expectancies of up to 40+ years.
Standard solar panels have efficiencies ranging from 13%â€“16%. Highâ€efficiency panels can reach up to 22% efficiency. Although efficiencies can reach up to 30% or more, the cost is usually prohibitive except for defense or space applications.
The average residential system size is about 5â€“7 kW. That said, averages won't help in sizing a solar system for your specific home.
Sizing a solar PV system involves careful consideration of three main factor.Available Light irradiation where a system can be installed, A customer's electricity consumption and Project budget.
With any gridâ€tied system, the solar system will turn off during a utility power outage. You will experience power outages the same way you do now. This is a safety feature built into the inverters to prevent accidental back-feeding into the grid, which could endanger utility workers. When the utility grid is running again, your solar system will automatically turn back on and resume generating power and saving you money.
Very little, if any. Solar panels are relatively lightweight, so there are rarely any structural modifications required. Conduit and wire must be installed from the solar panels to the electrical service panel. Typical installations take only 2â€“3 days, with only 1 hour without power.
Not at all. Grid-tied systems simply feed into a breaker in your main service panel.
Solar electric panels are built with highâ€impact tempered glass. The solar industry standard dictates that panels should be able to withstand stormy weather. If your solar panels do suffer any hail damage, you can claim the damage via your homeowner's insurance policy. Samrud Energy can organize a comprehensive Insurance cover for your system.
We recommend that you contact your insurance agent to determine if additional coverage is needed to insure the solar electric system. Typically, any increase in premium is only to cover the replacement cost of the system, as opposed to the system being viewed as a liability by the insurance company.
Feel free to call us for more information or go to the MNRE or KREDL 's website. Here you'll find useful information about their solar rebate program and application process. We encourage you to contact us at any time for further details and program updates.
Batteries are only necessary if you are: (a) Living â€œoffâ€theâ€gridâ€; or (b) Living in an area with a high occurrence of power outages.
Most solar electric systems in urban areas, where grid connections already exist, forgo batteries and effectively use the utility grid as a battery. Not having batteries in a system will reduce the overall cost and virtually eliminates maintenance.
If you're tied to the grid, then you simply take electricity from the utility. This happens whenever you are consuming more electricity than your solar system is producing â€“ such as at night or during cloudy weather. When the sun is shining, however, and you are producing more power than you're consuming, the solar system will feed the excess electricity back into the grid, causing your meter to spin backward. Each month, your utility netâ€meter may spin backward and forward on a daily basis depending on the power generated from your Solar system, but your monthly utility bill will only show the â€œnetâ€ usage that occurred.
This is called â€œnet meteringâ€ and it allows you to achieve a â€œnet zeroâ€ bill by selling back the power that you use at a retail rate. If you produce more power than you use each month, the utility may pay you for the excess power you produced.