Hi I

I believe the solar, or Windmills are supplying power it is either DC Volt, or AC Vol. it could be 12 VDC or 220VAC. The output is Electrical power; it is up to you what you connect after that. Of course economics come in this part you have to do some feasibility analysis and economic analysis to see if it is profitable or not. Weather has its impact, wind speed and hours of sunshine. I hope this will give you some ideas.

Cheers

Dr. Dhia

Dear Shadi, besides what Dr. Dhia said, industry is a usually a huge load and supplying it with solar PV will definitely make the system not to be feasible as solar PV is expensive and inefficient.

If you can get a very high solar irradiation of average of up to 6.5 -8 kwh/m2/day with a PV panel of good efficiency (40-45%), it may be feasible for large system solar farm like the one you mentioned.

Dear Samuel,

thanks for your reply. But still, I am looking to find examples of using this power for not residential areas. 

For example, here in Saudi Arabia, ARAMCO, the largest oil producer company, is using this power in remote plants. I am looking for other examples in different areas and I am interested to know the amount of produced power there.

Dear Shadi, I have worked on Agricultural project in Iraq. the project was to try using hybrid system (windmill and Solar panels) to generate electricity for the farmers in the desert area close to Saudi border in Karbala city. we distributed around 60 units for the farmers. each system  generate 1000 W. it worked successfully. the system used during the day to supply electricity to the water pumps to fill water tanks and irrigate of trees. the nice thing is it works during the day by solar, or wind to charge the batteries, and during the night by wind, which is plenty in the desert area. during the night the power switched to the house to use the electricity power generated during the day.  the  and some eco light (LED). I do believe you have similar environment like Iraq, may be this will give you some ideas.    Cheers

Dear Shady, 

I think you have to do solar resource assessment and estimation of power for the given load you are referring about. If it is in Saudi Arabia, definitely the solar radiation is good (more than 5.5kwh/m2/day). Check the SWERA data base for estimation. Then do an intensive load assessment for the industry in question. If it is off-grid, you will size your PV pannel, Battery storage, converters, battery chargers and other details. You can check the design guide lines from the attached document

http://www.pvresources.com/pvpowerplants.aspx

http://en.openei.org/apps/SWERA