Sizing a TEG System

Correctly sizing a TEG system is important

When it comes to remote power, every watt counts. The same is true for the voltage type, tolerance and regulation requirements of the electrical loads. Often electrical equipment is chosen for its features and price, independent of the voltage requirements. Combining and mixing voltage requirements in an off-grid industrial remote power installation can lead to substantially higher system complexity and cost. Reliability would be achieved by choosing slightly more expensive equipment with a common voltage requirement.

Examples:

  • Inverter Required? - When a 24 VDC radio repeater is combined with a 120 VAC shut-off valve, the base system voltage would likely be 24VDC with an inverter required to supply the 120 VAC. Including the inverter increases the system price, reduces the system efficiency and adds another component that is critical to the valve for reliability. If a 24VDC shut off valve is chosen instead, the inverter would not be required.
     
  • Tight voltage tolerance is needed. If 24VDC +/- 2% is used instead of a 20 – 30 VDC allowable range, then a DC-DC converter is required between the system batteries and the load. As with the inverter, this simply adds complexity, a loss of efficiency and an increase in system price.

Gentherm Global Power Technologies (GPT) works closely with customers early in the project to make sure they are aware of the impact equipment choices have on the cost and efficiency of their remote power supply. In many cases, GPT recommends technology that is best suited to the situation, based on our experience in this business.

Technology Choice Option Example:

  • For remote monitoring applications, camera technology allows for a 100% DC system, which is known to reduce load and power conversion. This offers a more reliable and less expensive remote power solution.

GPT offers innovative approaches to unique situations; creating solutions that are simple to use, environmentally friendly and requiring minimal maintenance.  GPT helps identify the right solution for your situation.

Please contact the sales team at Gentherm GPT to receive a load calculation spreadsheet to help you calculate your remote power needs.  The FAQ section '"How much power do I need?" may also provide you with answers.

Gentherm Global Power Technologies*(GPT)  Remote power products are designed for a minimum 20-year service life.


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*Formerly:
 Global Thermoelectric