Impact Calculator

Select the quantity of Lytefire you need:

1 Lytefire have the following impact each year:

kpi_1 tons CO₂
not emitted (CO₂eq)

kpi_2 baguettes baked *

African baguettes are about 40cm in length and 150g.

or kpi_4 meals cooked **

650g of cooked rice and beans
800 calories per meal

kpi_3 trees
or kpi_5 m² of forest preserved

Your 0 Lytefire are preserving each year kpi_3 trees

This impact comes when replacing firewood as a fuel

How this impact is calculated →

Amount of breads baked per day on average (in kg):

kilograms

30-40kg of breads baked per day is a value from real solar bakers in Kisumu, Kenya, although higher amounts are technically possible, this depends on the day-to-day activities of the bakery.

Amount of sunny baking days per year:

workdays

The average number of solar days depepnds on the local climate. Estimate providede for Kisumu, Kenya.

Amount of firewood used per kilogram of bread baked:

kg firewood / kg bread

This depends on the efficiency of the ovens used before Lytefire and the energy density of the wood. A 2014 study in Mozambique found 0.9kgs of firewood used per 1kg of baked bread in pre-heated wood-ovens (source).

Amount of CO₂ emitted per kilogram of firewood:

kg CO₂eq

Average weight of firewood per tree in kilograms:

kg / tree

Varies greatly depending on forest. 127kg is based on Grevillea robusta harvests in Embu, Kenya (source).

Average number of square meteres per tree:

m² / tree

Varies greatly depending on forest. The higher the number, the less dense the forest. A 3 by 3 meter spacing per tree results in 9m² per tree.