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— | blog:2017:0908_crypto_mining_on_solar_panels [2020/07/10 12:11] – external edit 127.0.0.1 |
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| ====== Crypto mining on solar panels ====== |
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| {{tag>mining energy}} |
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| As part of my little project to start mining cryptocurrencies "appropriately" I decided I should have a look at how one could possibly use solar panels to produce electricity in a mining setup. |
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| ====== ====== |
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| First I had a look at a few youtube videos: |
| * [[https://www.youtube.com/watch?v=8f10hVL-y0o&list=PL9ghTEFW_JzuA7VkmsqQQEB6cIYgi4Pdj&index=1|How to create a solar panel from scratches]] ([[https://www.youtube.com/watch?v=YckHQS3TV84&list=PL9ghTEFW_JzuA7VkmsqQQEB6cIYgi4Pdj&index=2|And part 2 here]]): This looked interesting because it means we could really build a solar panel from simple solar cells (yet, it's not really worth it: it's less expensive to just buy a panel nowadays). |
| * [[https://www.youtube.com/watch?v=hNH2YGzwznI&list=PL9ghTEFW_JzuA7VkmsqQQEB6cIYgi4Pdj&index=3|A fast way to solder the solar cells]]: this guy present a fast method to solder a complete row of solar cells (but he also mention that it's a better idea to just buy a pre-made solar panel nowadays as already noted above). |
| * [[https://www.youtube.com/watch?time_continue=14&v=hANi5NbcY5g|Grid Tie Inverter]]: this would be the easiest option to get the current on the grid |
| * [[https://www.youtube.com/watch?v=w4qcoEXYqK0|The Ultimate Guide To DIY Off Grid Solar Power]] |
| * We should use **golf car batteries** in a solar setup instead of regular car batteries. |
| * Connecting 2 batteries of 6V in series to get a 12V system (of 235Ah in the video) |
| * Batteries should not be discharged more than 50% (or their lifetime will be severely reduced :-S) |
| * Battery model used in this video: Duracell SLIGC125 |
| * Should place the solar panels as close as possible to the batteries: due to the resistance in the cable (to reduce the resistance we need to use thicker cables) |
| * When placing the panels, should take into account that the sun elevation is not the same during all the year |
| * => Consider not placing the solar panels fixed on the roof (can tilt, clean, maintain them easily in that case) |
| * Solar panels can be wired in series and/or parallel: to consider to get an appropriate voltage / amp value. |
| * Select the appropriate wire gage to support transporting the amp value |
| * Use a **voltage drop Calculator** to figure out how much voltage is lost in the the wires. |
| * Consider MPPT charge controller: accepts large input voltage. |
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| ===== Electricity cost ===== |
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| Now let's start a simple mind experiment: let's say we want to run a mining rig of about **1000W**. If we do so, that means we use \(1000W \times 24h = 24kWh\) of energy per day. |
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| The [[https://www.kelwatt.fr/prix/edf|current price of the kWh]] in France is: 0.14660 € TTC (we have a 6 kVA power subscription). So technically we would have to pay each month for electricity: \[ 24 \times 0.14660 \times 30.5 = 107.31€\] |
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| [[https://www.fournisseurs-electricite.com/comparatif-electricite/actu-electricite/1082-prix-dun-kwh-delectricite-en-france|This diagram]] explains the various taxes payed to get from 0.0887€/kWh HT to 0.1466€/kWh TTC: |
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| ;#; |
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