I can trip the measly 15 amp breaker by drawing 1.5kW on two servers + turning on an amplifier that is somehow on the same circuit despite being in a different room quite far from where my servers are lol. On average though I only draw like 350W. The huge spike only happens if I run a miner/llm on both of my servers or the during the startup spike. The 1kW chunk comes from some RTX Quadro 6000s which each eat 250W each when maxxed out. EDIT: Want to mention that most machines report their power draw (from mobo) without IPMI, so you can use your favorite stats collector use it to form a rough estimate of kWh total in case you don’t have a proper meter that records usage.