The energy costs to produce 1 kg of tilapia was on average $12. The market price for whole tilapia sold to restaurants in Baltimore, MD was $8.82/kg, which was less than the energy costs for raising the fish. A recent case study of small scale aquaponics in Hawaii had lower input costs for producing fish than in Baltimore, with a total costs $4.80/kg and $1.70/kg from energy costs which can be attributed to the warmer climate in Hawaii.