supplemental CO2—all running on as little as 10 gallons of water and 80 kWh of energy per day.
can produce 48,568 marketable mini-heads of lettuce a year
at $80,000 each
so average price of electricity is 15c per KWH or 11 if comercial
average price to sell mini heads of lettuce
so if payin 11c per KWH then $3212 per year on lecky, assuming 1 man could run this as a full time gig and you sold mini-heads of lettuce for $1 each(dunno how likely that is thought seen as lettuce sells wholesale for about that per pound teh article says they sell for $1.25 but sound like BS to me) so say you spend another $356 on water and sewage
you are left with around 45k per year
then you need to buy nutrients, seeds media and ???
unless its a non-profit or you make money doing tours doesnt seem to add up
perhaps some one else can make sense of it?