This deliverable forms part of Deliverable 2.2 in Work Package 2 and provides information on the gas engine and turbine rig scale testing.The tests of operating a reciprocating internal combustion spark ignition engine conducted for the ETI Energy from Waste project show that engine operation on gases comprised of varying proportions of hydrogen (H2) and carbon monoxide (CO) with adiabatic flame temperatures bounding that of methane (?Natural Gas?, CH4) is feasible. Using an engine configuration...