Greetings Ed, I understand your concern, that is why I suggest you inquire about PoS, which do not require high energy consumption or high technologies, I even consider that these will displace PoW due to its scalability and higher performance. When you have the time, take a look at Divi from www.diviproject.org where you can install a really easy one-click masternode to setup or staking for 20% performance. To me it has worked.