Santa Clara VTA contracts Vanner Inc. for more than 90 GILLIG electric hybrid buses

Aug. 16, 2023
GILLIG electric hybrid buses from Vanner Inc. are equipped with Vanner’s Increase Accessory Power 2™, enabling total accessory electrification; powering air conditioning, air compressor, electric fans and all 12V/24V loads.

Santa Clara Valley Transportation Authority (VTA) has commissioned over 90 GILLIG electric hybrid buses from Vanner Inc. Equipped with Vanner’s Increase Accessory Power 2™ (IAP2™), these busses will engage total accessory electrification, powering air conditioning, air compressor, electric fans and all 12V/24V loads. 

IAP2™ converts and manages accessory electrical energy from the Allison eGen Flex™ Electric Hybrid System. Additionally, IAP2™ will power all accessories continuously when the bus operates in pure EV-Mode.

Major components of IAP2™ are:

  • High Voltage Distribution Module®, a smart high voltage power distribution module in constant communication with the Allison eGen Flex™ Electric Hybrid System
  • Vanner Export Power Inverter, converting 600VDC to 230VAC 3-Phase
  • Hybrid Beltless Alternator®, converting 600VDC to 28VDC. These buses will have Dual Air-Cooled HBAs producing 500 amperes.

“Vanner Inc. has maintained a long relationship with Santa Clara VTA, Gillig, and Allison Transmission. We are honored to be a part of the new Gillig delivery with Allison’s eGen Flex™ Electric Hybrid System and our IAP2 enabling both electric hybrid and zero emission EV operation,” said Steve Funk, president, Vanner Inc.

The Allison eGen Flex™ Electric Hybrid System with Vanner’s IAP2™ received certification from the California Air Resources Board with a Cummins Inc. engine.

IAP2™ is also directly applicable to heavy-duty zero-emission battery and fuel cell vehicles.