The Cheapest Heating for Farmers: Straw & Bale Boilers


Our proven techology is the core of Drax power plant's renewable strategy as the our feeding systems bring the cheapest renewable heat to the energy company.

Straw is considered a waste product in farming and is difficult to recycle as it takes too long to decompose in the ground where farmers normally plough it down.The Alfagy Straw Bale (SB) series is a range of automatic boilers from 119 kWt right up to 990 kWt.  We also have 3 to 30 MWt units available upon request.  

The boilers have been specially developed for automatic stoking of wood pelletswood chip and grated straw. This fuel flexibility allows the most economic operation and supply security of the heat.Boilers for automatic stoking are fitted with a ceramic combustion hearth which gives the optimum combustion of flue gases and automatic de-ashing. The greatest degree of efficiency is obtained by selecting the boiler size to match the heat consumption.

Now, there is a new way to utilise this valuable renewable energy resource: burn it for energy production.  The ashes provide essential nutrients for the soil and should be spread on the fields.  The straw boilers have already been unstalled on farms for heating and grain drying as well as power stations such as Drax.The feed stock is Heston Bales weighing approximately 1,400 lbs. or 650 kg.  We can deliver the following plant sizes for indoor or outdoor installation: 






 Dry Straw 

Use (lbs/h)

 Dry Straw 

Use (kg/h)

 Get a Price
Alfagy SB120 30 119 66 30 Contact
Alfagy SB140 34 136 75 34 Contact
Alfagy SB180 45 179 98 45 Contact
Alfagy SB220 53 212 117 53 Contact
Alfagy SB300 73 293 162 73 Contact
Alfagy SB420 104 417 230 104 Contact
Alfagy SB510 127 506 279 126 Contact
Alfagy SB680 168 672 370 168 Contact
Alfagy SB850 211 842 464 210 Contact
Alfagy SB1000 248 990 546 248 Contact