Year 2013

Renewable energy production from farm:

Energy produced from solar = 8553 Kwh

Energy from wind= 5.721 Kwh

Total: 14,274 Kwh produced = (1 Kwh = 860.42 Kcal) = 12,281,349 Kcal

Energy produced from workers fed from farm

Horse power. 4 hrs/day for 60 days = 240 horse hours. (I horse power = 3/4 Kwh =180 Kwh.) = 154,876 Kcal

Human power (1 person = 1/4 horse power). 6 hr/day × 360 days × 2 persons = 1080 hp hours = 810 Kwh = 696,940 Kcal

Total produced = 12,281,349 + 154,876 + 696,940 = 13,133,165 Kcal

Energy bought in to run farm

Energy bought in from grid = 5,259,751 Kcal

Diesel (tractor, transport etc) = 1700 l

1 l = 8.750 Kcal/l) = 14,875,000 Kcal

Total energy bought in 5,259,751 + 14,875,000 = 20,134,751

20,134,751 − 13,133,165 = 7,001,586 Kcal/275 = 40,009.062 Kcal/ha

for every calorie used, 0.65 was produced