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Residential Grid Tie Systems  With North Arkansas Solar Power Inc. , we make the design and installation easy for you. Just give us a call with your information on your electric bill. With the average monthly Kilo-watt hour usage of electricity on the bill, we can size a system to fit your needs. Common residential sizes are about 2 kw, some as low as 1100 w. With NASP it costs only $7.50 per watt installed.
Here are some example sizes. To get an accurate cost we would need your yearly total of KWH's used, then divide by 12 for monthly average. Sizes are based on an Average Killowatt Hour per year, and Average Minimun Peak Sun Hours of 4.6 per day. Average killowatt month. (all 12 mo. of bills / 12 ) | 250 kwh | 500 kwh | 1000 kwh | 2000 kwh | average daily kwh. (mo. / 30) | 8.33 kwh | 16.66 kwh | 33.33 kwh | 66.66 | Solar system size (in watts, not killo watts) | 1800 W | 3600 W | 7250 W | 14,500 W | | Price per watt installed | $7.50 | $7.50 | $7.50 | | Cost | $13,500 | $27,000 | $54,375 | $108,750 | | With Fed Tax Credit | $11,500 | $25,000 | $52,375 | $106,750 |
Standard Roof Mount systems are priced here. Ground Mount and Tracker systems can cost more for the racking system. | There is a Federal Tax Credit of $ 2,000 for solar(none for Arkansas) Please check with your utility company for permits and application. Related FAQs:
1. Can state rebate incentives take a chunk out of the cost estimate I come up with here? Go to www.dsireusa.org to find out what grants or incentives are available in your state. For instance, in California, you can multiply your gross installed cost by 0.65 to account for rebates and tax credits. In New York or New Jersey, multiply by 0.5.
2. What ongoing savings can I expect? Whatever you’re paying your utility company for electricity now could change to $0 (service charges will still apply), depending on your system design, how much sun you get where you live, and what percentage of your total electricity usage is offset by your solar system's output.
3. How can I shave dollars off the cost of the solar system I'll need? Your first step should be reducing your load — the amount of power your household uses. Conservation comes first, for more reasons than one. In the case of off-grid solar, it pays for itself by a factor of five. That is, every dollar you spend to conserve will save you $5 in system costs. The cost to purchase an off-the-grid solar system is about $3.20 per watt or $3,200 per kWh (kilowatt-hour). At $3.20/kWh, a solar electric system for an off-grid American home with average electricity usage of 18 kWh would be $58,000 before rebates, incentives and tax credits.
But by reducing the load your solar system has to produce, you can reduce your cost to solarize and do your part for resource conservation at the same time. Let's take light bulbs as an example. If you replace 30 of the 60-watt incandescent bulbs in your home with more efficient compact fluorescent bulbs that run for an average of five hours per day and use only 15 watts each (but put out as much light as a 60-watt incandescent), you’ll save 6,750 watts per day (45 watts each x 30 bulbs x 5 hours), which equates to a $21,600 savings on your solar system.
You can also lighten your power load in many other ways in an existing home, including:
• Add insulation and/or heat barrier in your attic
• Choose more energy efficient appliances
• Replace or repair drafty windows
• Be diligent about maintaining calking and seals around windows and doors
• Dry laundry on a line outside vs. in an electric dryer whenever possible.
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The system size shown is 1700 W. 10 "Sun Tech" 170 W solar modules on a standard "K2" mounting system. The inverter size is 3000 W. and is an "SMA sunny boy" |
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