AESI entered the alternative energy market as an outgrowth of 50 years selling, installing, and servicing boilers and power rooms. Our commitment then and today is to only provide those systems that operate as reliably, and easily as fossil fuel fired packaged boilers. An AESI system will run as intended from day one taking full advantage of the smart engineering incorporated into each biomass package. The expertly designed features of an AESI biomass unit truly sets our systems apart from other biomass energy suppliers.
| Functionality | AESI | Other Biomass Boilers |
| Fuel Humidity | Broad - Up to 100% | Limited - 60% or less |
| Fuel Granulometry | Pulverized to pellets Rough grind to chunk |
Usually needs prepared fuels |
| Fuel Consumption | Complete | Units leave slag, char, and other apportionments of un-utilized fuels |
| Emissions | Below most air standards | Varies with fuel properties |
| Modulation | Very good as the fuel is in gaseous state during combustion | Varied depending on fuel properties High incidence or loss of control of internal temperatures |
| Durability | Long-lived due to high mass of unit, high quality materials and components | Multiple incidents of failure in under two years, some under one, some cases of failure after a few months |


