Why not just rent space at a local power generator (hydro)? The owner/operator would eagerly rent you space and sell you very very cheap electricity...
This is especially true for countries outside of U.S. where everyone is looking for extra income.
The other option is to produce your own electricity and sell back to the grid. Then, your per Kw cost could be 0. The only problem with this option is how much is the capital expense? If we had solar technology that was much more efficient than it is today, this would work nicely.
No hydros close-by, and if there were any, the security and housing costs would replace the electricity saving costs
Now, if you had land in either a rainy area, or along a river, like in the hills or the mountains, definitely worth to invest in a small power generator.
I would also love to be able to sell power to the grid. It's no possible for me, the two companies in our country have effectively 0.00% of their output produced by solar installations. ZERO. We have more sun than Germany, and they produce in some areas up to 60% of their electricity from the sun. I could also benefit from overclocking and overdriving the miners during over-nominal output (day-long full summer sunny days) and tune back and draw from the grid when needed. I would not require any batteries either!
I don't think your math, if you done any, holds up here. I'm a bit surprised there is even a renewable expert in this thread and he basically agreed to this?
That's because everyone's situation is different. Prices, equipment costs, man-hours of work, existing resources and equipment, etc...
First of all .. not even start to think about the bitcoin part, I don't even know where to begin. Solar panels cost approx 2500e to 3500e per kWh to build, then you looking at some cost per year to maintain it, and then there is a fact that they lose about 1% of output power per year. The cheaper, China version, even more. Their lifespan is 40yrs at best. Most European governments pay huge subsidiaries to built renewable energy because they are obligated to get to certain % of all energy to be renewable by the year 2025. Panel efficiency is around 18 to 22%, this will change greatly in the next 10 to 15 years, so your solar plant would be obsolete way before it becomes useless after 40years.
I have to agree with you. Solar panels, when acquired and installed under warranty from a public agent, will cost over 2.5$/W
. I intend to buy the panels myself at 1$/W
and build the arrays, supports, and recycle some existing equipment and buy some new stuff for the power inverters and the other stuff. I don't want 40 years, I expect 15-20 years at most from the cells, which can be recycled, reused, replaced on the way, with newer and better ones. Yes, efficiency will go up. Start early, optimize on the go.
Huge subsidiaries are not making their way over here. They are small. So small that for this year, all the existing requests exceed the whole yearly budget. That is, if I apply today (holy shit bribing and elbowing and bureaucracy circus!!!), I might get a plan approved next year, I have to buy my stuff at extra markup from approved providers (eg, as you explain up to 5$/W
!!!!), then I can get back some of my spent money when the budget arrives, in 2-3 years. Why would I want to do that (in Eastern Europe)?
Bitcoin part of the project is just plain silly. 1 Gh rigs won't produce ALMOST anything in the next 6 to 12 months. So you are basically building solar panels and throwing all the energy you produce into something that will get you no return at all. What you doing is, you basically speculating that bitcoin would be worth TONS in 20 to 40 years.
Unfortunately the difficulty rose too fast. It's true, I won't get much but recoup my investment in 2-3 years, if the price/difficulty parity remains the same. I have some checkpoints to ensure that I start the project, one of them is verifying that the bitcoin profitability will hold at the same level or increase during July. If indeed during this month nothing happens with the 3:1 market:cost ratio of bitcoin mining, I can't go ahead. If my predictions hold, then it's a go.
There is an easy solution to all of this. Whatever is the total you wanted to invest in this whole project. Lets say $10k, just buy bitcoins and sit on them. No work, no problems, no nothing.
Except I won't have $10k invested in energy producing equipment which can be resold at a value and I will be bored