At first look, fabricating your own particular sunlight based board doesn’t appear like a do it without anyone else’s help venture, in any case it is a considerable measure easier that numerous other DIY ventures. The sun based cells are the convoluted piece of a sun oriented board, and you can get them reasonably economically. When you have the sunlight based cells, you essentially need to patch them together, put them in a casing, and wire them to terminals. The uplifting news is you can manufacture a sun powered board for about $1 per watt while buy costs for a finished board run $2 1/2 to $3 so your funds on a 3600 watt framework adds up to extend from $5,000 to $7,000.
Purchasing your Solar Cells.
Polycrystalline sun oriented cells are accessible to the customer is little amounts from various providers on the web. Most likely the best source is eBay since there are numerous providers so valuing is exceptionally focused, and eBay has a vender rating framework so you know by their rating that you are managing a trustworthy provider. The size that is most regular is 80mm by 150mm or 3 1/4″x6″ that yield 0.5 volts, 3.5 amps or 1.75 watts. They are accessible selected or untabbed. The selected rendition has the tabs used to associate the cells together as of now welded to the cell so they are substantially less demanding to work with. I would propose you utilize the selected form for in any event your first board.
You likewise will discover imperfect cells with minor stylish issues and broken cells accessible for less cash. The imperfect cells perform well, you simply will have a spotty looking board, so they will work, however the broken cells will be exceptionally hard to patch together and won’t deliver a predictable power so I would abandon them to the specialist. Also, you should ensure your shipments are protected since the cells are exceptionally delicate and you would prefer not to pay for broken cells.
Developing your Solar Panel Framework.
The main thought is the extent of your board which will be controlled by the quantity of sun based cells utilized for each board. Keep in mind in your arranging that you need to make every one of the boards a similar size with the same electrical yield. For instance, on the off chance that you utilize 36ea 3″x6″ sunlight based cells masterminded in a 4 x 9 network, you can assemble a board that would yield 65 watts and measure 55cm x 70cm (25″ x 32″). The slightest costly board can be made with a plywood backing and a wood outline. This would should be painted with an outside groundwork and a few layers of UV safe paint so it will last. On the off chance that you need a more drawn out enduring board, you could utilize an anodized aluminum outline.
Binding your Solar Cells Together.
Accepting you are working with selected cells, and utilizing the 4 x 9 lattice said above, you should make 4 strings of 9 cells each. Every cell will have two tabs welded to the back or negative side of the cell. These tabs will be sufficiently long to reach over the back of the following cell and ought to be fastened to every one of the contacts of the following cell. Make certain to leave around 1 cm or 1/2 inch amongst cells, and it is a smart thought to crease the tab in this hole before fastening so you have a little squirm space for extension and compression because of climate and defective estimation. Keep patching cells in this way until the point when you have finished your string of 9 cells. At last, you have to patch tabs to the negative contacts on the main cell so you have leads on the two finishes of your string. Test each string in full sun with your multimeter to ensure your associations are working and you are getting no less than 4.5 volts and 3.5 amps..
Last get together of your Solar Panel.
Lay the four strings on the board you ensured they fit equitably and cells aren’t touching. Ensure you pivot your strings so the positive leads falling off the finish of one string will be beside the positive leads of the following string. In the case of everything looks great, join every cell to the board with a touch of silicon caulk. Next we need to bind the strings together with copper wire or tab strip. Interface the positive prompts the negative leads of the following board so all strings are associated in arrangement. At long last bind a 25cm or 12 inch wire to the negative lead toward one side of the board and a wire to the positive lead at the opposite end of the board to make the wires that will be utilized to associate boards together. Test again to ensure you are getting the yield of 18 volts and 3.5 amps. In the wake of sitting tight a few days for the silicon to dry, you should cover the cells with a Plexiglass or safety glass cover, seal edges with silicon and you are finished.