We roast our coffee beans outdoors in the sunshine because of the smoke created, and we use the sun to charge our Bluetti AC200 Max solar generator and B300 battery which then powers the Kaleido M2 coffee roaster. The coffee roaster is very efficient using electric IR heating elements to roast, and only consumes a maximum of 800 Watts. Our D050S solar charge enhancers bring in extra power, so input always exceeds output and our batteries at the solar tiny house stay fully charged until nighttime and quickly recharge back up once the sun comes up. The secret is overpanelling with maximum solar panels through all available inputs (there are 4 inputs in the Bluetti AC200 Max and B300 battery setup if you use the optional D050S charge enhancers to utilise the "grid" inputs).