If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
If you have a product that doesn’t already fall into any of the existing technology or sub-technology categories on the Energy Technology List (ETL), you can propose that a new category is added.