Homo Early Pleistocene (1.2 Mio. before current)
Tech Summary
Value: Pre-Tool
Confidence: Canon
Proto-tool use by early Homo species.
Kardashev
Value: 0.057
Min: 0.04
Max: 0.25
Confidence: CalculatedGuess
At a 3000 kcal per day diet. That makes 130 W. Plus 70 W for open fires, cooking, etc. to make a round 200 W figure. Disregarding sunlight as always.
At how much power does a camp fire run? Also camp fire may have a 1% efficiency. Do we count the useful warmth as "energy use" or do we include 99% waste heat?
If the population were in the millions instead of in the 10.000s then we are easily at K 0.4 just by warm bodies.
Population
Value: 18500
Min: 10000
Max: 26000
Confidence: Canon
References:
Reason
By taking the first source that comes up
Techlevel
Value: 1
Confidence: Canon
TL 1 Pre-Tool. No manufactured tools, no controlled fire. Homo habilis/erectus, proto-tool use only.
Class
Value: 1
Confidence: Canon
Homo habilis/erectus. Proto-tool use, no fire control yet. Class 1 Pre-Tool.
Homo habilis and/or Homo erectus (you tell me if you want to have it exactly)