| quote:
Solar Radiance: 6.12 kWh/sq m/day
Avg. Monthly Usage: ($0.1016/kWh). 90 kWh/month
System Size: (100% of your yearly usage) 0.61 kW
Roof Size: 60 sq ft
Estimated Cost: $4,879.89
Post Incentive Cost: $2,561.94
The result from Solar Calculator seems a bit low for a grid-tied system. In 1999 the cost of grid-tied electricity in my neighborhood was about 10 cents / kWh plus a $10 / month service fee. I think the installation would make the cost of the system a little higher:
3 KD-205's: (($570 / each) * 3) * 1.016 (city sales tax) = $1,737
One 2,000 W grid-tied inverter: $2,000
Wiring and mounting hardware: ~$30
Professional instillation: ~$1,500
Total: $5,267
12 V Off-grid system:
5 KD-135's: (($402 / each) * 5) * 1.016 (city sales tax) = $2,042
One 2,000 W rectangular wave inverter: $1,000
Wiring and mounting hardware: ~$40
8 Crown 395 Amp-Hour Deep Cycle Batteries: $2,196 * 1.082 (sales tax) = $2,376
Owner installation: $0
Total: $5,458
My PV system started out with 407 rated watts, expanded to 527 rated watts and is currently 662 rated watts which provides ~3 kWh per sunny day. If you want to get the price down, reduce your power consumption. |
