What will be my future consumption of pellets and especially its cost compared to fuel oil?
Heating with wood pellets (or pellets): Questions to ask before choosing this method of heating?
Your consumption of pellets will obviously depend on your energy needs. If you know them, then it will be easy to estimate your pellet consumption.
For this, we have developed in detail several methods on the page well size its wood boiler which we summarize here.
Method 1: make a complete and complete thermal study
A thermal study will give you an estimated consumption in kWh per year.
If so, simply divide by 5 to obtain about your needs kg pellets.
Examples: a 150 m² house which has an energy requirement of 100 kWh / m².year will need 150 * 100 = 15 kWh per year, i.e. 000 / 15 = 000 kg of pellets = 5 Tons per year of pellets (or 3000 L of equivalent fuel oil, see method 3)
Method 2: use your current gas or fuel oil consumption
The equivalence is very simple: 2kg of pellets = 1 L of fuel oil = 1 m3 of gas.
Examples: if your consumption is 2500 L of fuel oil or 2500 m3 of gas, you will need 2500 * 2 = 5000 kg = 5 Tons per year of pellets.
How much will I earn compared to fuel oil?
It all depends on the price at which you will find your pellets and the prices are variable (see Why choose wood pellets?).
Suppose you touch the pellet 200 € / t delivered (price generally found in 2007) and the oil for € 0,65 1000L.
kWh prices would therefore:
- € 0,04 per kWh for pellets
- € 0,065 per kWh for fuel oil.
By switching to pellets, you can therefore reduce your energy bill per kWh from 0,065 € to 0,04 €, ie by almost 40%!
In other words, your energy bill could be almost divided by 2, but beware of the stability of the price of pellets if they are not (yet) regulated, unlike fossil fuels. View discussion future price of pellets?