solar power cost
In today"s economy it"s critical to get the most you can for your purchasing dollar. So there"s no reason to over pay for solar power cost when there area lot of them for sale on eBay. Plus, eBay is one of the largest and most honest online shopping sites in the modern world. This site is authorized by eBay to help you find the solar power cost you are searching for and show them to you. If you don"t see the solar power cost you are shopping for below, use the search feature on your right search for the item you want.

How to estimate Solar energy on certain direction pointed surface?
If I mount a flat surface which points to certain constant direction. At certain place of the world. I now need to estimate the maximum amount of Solar radiation energy which this surface can get during certain time.
Is there a PC program or an algorithm that can make this estimate for me?
The actual problem.
I need to know how much maximum energy can I get during a year, if I put solar cells or solar collectors on my house tilted roof?
Is there anyone who can somehow help me?
Thank you in advance.
Try looking here: http://rredc.nrel.gov/solar/old_data/nsrdb/redbook/atlas/
That's the National Renewable Energy Labs site, and will give you insolation (amount of sun) for your area. If you have an ideal location and roof, you would choose, Average, Annual, Flat plate tilted south at latitude. Then a map will come up. This map takes into account weather conditions, too, because it is derived from actual measured data. Thus, a dry, cloudless location such as Phoenix shows more sun than a place with more clouds like Honolulu.
Let's say the map says you get 5 hours equivalent sun per day. The word "equivalent" is important, because it factors in that morning and evening sun are weaker than noonday. The number you get means the equivalent of direct, noonday sun for 5 hours, even though it may be 12 hours from sunrise to sunset. And it's an annual average, so you will get more in the summer, less in the winter. Ok, so you take that figure, say 5 hours, and multiply it my the size of your array in watts, and multiply it by 365, the number of days in a year.
Example:
5 hours/day X 3 kW array X 365 days/year = 5475 kWh/year.
If you want a more complex calculation, you can try http://www.pvwatts.org/ , and take into account exact tilt and orientation of your roof.
Here are some items that our software found on Amazon.
![]() P3 International P4400 Kill A Watt Electricity Usage Monitor List Price: Sale Price: $14.98 You save: $35.02 (70%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() Sanyo Eneloop Ni-MH Charger and 8 Rechargeable AA and 4 Rechargeable AAA Batteries List Price: Sale Price: $33.99 You save: $16.00 (32%) Eligible for free shipping!Availability: Usually ships in 24 hours |
![]() Sunforce 50033 15-Watt Solar Charging Kit Sale Price: $94.95 Eligible for free shipping!Availability: Usually ships in 24 hours |
![]() Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel with Sharp Module List Price: Sale Price: $499.95 You save: $200.04 (29%) Eligible for free shipping!Availability: Usually ships in 24 hours |
![]() Garmin nüvi 265W/265WT 4.3-Inch Widescreen Bluetooth Portable GPS Navigator with Traffic List Price: Sale Price: $138.00 You save: $81.99 (37%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() Texas Instruments TI36X Solar Scientific Calculator List Price: Sale Price: $28.00 You save: $0.95 (3%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() Casio FC-200V Financial Calculator with 4-Line Display List Price: Sale Price: $23.99 You save: $36.00 (60%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() TED 5000-G - The Energy Detective Sale Price: $199.95 Eligible for free shipping!Availability: Usually ships in 24 hours |
![]() Texas Instruments Profit Manager BA-20 Desktop Calculator List Price: Sale Price: $8.59 You save: $26.41 (75%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() Casio MS-300M 3-Line Display Solar Power Calculator List Price: Sale Price: $3.09 You save: $11.86 (79%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
Items recently purchased through this site:
Filed under: Uncategorized
Like this post? Subscribe to my RSS feed and get loads more!









































Eligible for free shipping!








