Quote from: BitcoinPanther on December 19, 2022, 06:01:29 AM

Quote from: Mr. Magkaisa on December 18, 2022, 01:29:42 PM

Quote from: Tolosi on December 08, 2022, 11:14:10 AM

Hi,

I am thinking of investing about value equivalent to 1BTC at today's price 16.K in a dedicated solar power panels at my roof and use the energy produced for mining bitcoins.
If I buy second hand miners with 200TH hash power included in the package, how I would calculate time of investment return?

- As per my understanding of what you are saying, you want to mine bitcoin, using solar power to generate electricity when you mine Bitcoin? Why is electricity expensive in the country you are in or is electricity consumption cheap there? If you have a solar power panel you can somehow save on your electricity cost.

Not really, imagine the start up cost of building a solar panel. It will cost you thousands of dollar more just like stated on the earlier reply. Then you have to buy a second hand miner, at least according to the computation you can have a ROI at the shortest time of 2 years (according to joniboini) and longest of 11 years (according to philipma1957). That is not factoring the possibility of the solar panel or the miner malfunction during the operation which may turn to worst thing of not getting ROI at all.

Quote from: Mr. Magkaisa on December 18, 2022, 01:29:42 PM

Because from the tone of your story mate, it seems that you have an idea that the cost of electricity is also expensive when we mine bitcoin, this is if you first buy the surplus miners that are sold to you. But my suggestion to you, is don't get into that if you don't have enough knowledge about bitcoin mining.

The OP had realized that buying Bitcoin is financially better option for him.

So much depends on the power company and if you can grid tie at fair offset rates.

Our largest field for mining does 280kwatts.

we burn 60 and offset 220. We do 5-6 hours a day yeah days last 19-15 hours in New Jersey but first 2 and last 2 hours are lower. So it comes to 5-6 hours depending on season.

So 5.5 year round. thus 5.5 x 230 = 1210 offset.

and 24-5.5 = 18.5 x 60 = 1110 pay back when it is "dark" So we gain 1265-1110 = 155 kwatts a day. this means mining the gear is negative cost of 155 kwatts which is squared up on April of each year. The warehouse complex use other power so that 155 is spent.

this was an 800,000 build with a 27% tax credit from Feds first year. so 800,000x.73 = 584,000 after 1 year.

and state of NJ offers addition credits of 10% so 584,000-80,000= 504,000 after first year.

you still get the 10% from NJ for 9 more years so 80,000 x 6 = 480,000 . thus in year 7 504,000- 480,000 = 24,000 on the loan.

This does not count the mining this does not count interest on the loan for the build. they are close to the same. unless there is a bull run.

So by year 7. the loan is done to 24,000 you still have 3 NJ credits coming for a grand total 240,000 over 3 years.

The gear is insured and warrantied.

But this is small scale commercial and it is good for NJ, USA as NJ has good programs for solar.