Switchgrass fuel pellets. Assortment of pellets, cubes and round briquettes made from compressed switchgrass (Panicum virgatum). These pellets are burned in pellet stoves and used to heat homes and businesses instead of fuel oil. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Greb, Peggy / US Department of Agriculture |
Bildgröße: | 2500 px × 3693 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |