Reducing bitcoin mining expenses

Hey all! I'm a solo miner and I'm thinking about getting more than 30 ASICs in the next few months, mostly Antminers. I'm looking for tips on how to cut down the costs of mining bitcoin because the whole deal from buying the miners to dealing with electricity and maintenance gets pretty pricey. If you have any ideas, I'd love to hear them. Thanks!

If you want to reduce the cost on mining, you will have to go for areas where electricity is cheap and a kind of environment that is very cold enough to cool your miners. But mining is not cheap, you will have no option than to go the expensive way, old miners may not perform the best as new miners, but some people can suggest going for old miners. I would advice you that if you can not mine, it is better to invest in bitcoin instead.

I don't think it's wise to buy all 30 ASIC units from Bitmain you can get cheaper from Canaan units if you are planning to lower the cost. And the main part of lowering the cost is the Electricity rate but I think you can only get cheap power in 3rd world country.   Having a solar farm is I think another option to get free power but the problem is building a solar farm might cost more than buying ASIC units. Maybe you can build an on-grid solar panel to help reduce the power cost from your mining farm. Maintaining it should be an easy task just make sure you have some repairing tools like the test fixture, Multitester, and BGA soldering set then learn how to repair them here's the link below for a big list of ASIC repair guides. - https://www.zeusbtc.com/Support-Manuals.asp

There are numerous cost-cutting strategies available, ranging from hardware optimization to downtime reduction (to minimize a negative impact on profitability). Here's an article where you can learn about the various strategies that miners use these days to reduce Bitcoin mining costs: https://zionodes.com/blog/how-to-reduce-bitcoin-mining-costs-tips-and-strategies

philipma1957 seems to be getting a solar mining operation ready with a few friends. Why don't you message him for advice?

No such thing can happen, there is something called "difficulty" in mining, it doesn't matter how cheap it becomes to mine bitcoin or how many people mine it, the protocol will always keep the average block time at 10 minutes, ya not 100% adjusted but overall perfectly aligned. Here is a fair warning, the recent gears made by Canaan are of very low quality, it's probably why they had 80% drop in revenue in Q4 last year, it's either Bitmain or Whatsminer, the former for better efficiency, the latter for better quality. The United States has 50% or more of the current hashrate, and it doesn't fall into the 3rd world country (I hate that term anyway). OP, the first thing you need to check is the power rate, anything above 6 cents is risky, 7 cents is maybe doable but you will need a lot of luck, depending on your power cost, you pick the right piece of gear, where do you buy the miners from also matters, which country do you come from? if you are in the U.S., it's cheaper to buy miners from other resellers than to buy them straight from the factory.

We have a 265kwatt solar array in operation. It is grid tied and provides about 55kwatts per hour 24/7/365 due to net metering with the power company.