This back-up generator set has been developed by EcoInnovation as a means of providing backup power for renewable energy homes. EcoInnovation has located an older type cost effective diesel engine that will run on straight vegetable oil and directly coupled it to a modified Smart Drive generator. These generators are capable of over 1000 Watts when charging at 24 or 48 volts battery systems. 12 volt version also available to order. Direct charging is preferred to using 230 vac generators and chargers as it is much more cost effective and the system voltage regulator can be used to divert surplus energy not needed. This means an expensive battery charger is not required and you can avoid the need for an expensive inverter/charger. Save your money and spend in on more solar PV, wind and hydro generation so you only need to use the backup rarely. Output can be varied by reducing engine revs or by packing out the Smart Drive magnetic rotor. These engines will run of waste vegetable oil if