Autotransformer Coil Number and Three Phase pv transformer

Good morning sir

 I need an 3 phase inverter for a factory a capacity of 800 kilowatt 

 and 500 kilowatt and also 300 kilowatts inverter 

 that can support as a backup for my factory 

 I want to use it as ups and the same time to reduce my electricity bill 

 I want the pure sine wave type 

 that I can connect my metre to reduce the electricity bill 

 so let me know the voltage for each one 

 I will be happy if you send the invoice very soon do thank you

 Best Regards,CEO MR Ampofo StephenWebsite:

  www.amstytech.com****amstytech****0322020185Mob 0204690002 / 0267090001