The National Renewable Energy Laboratory (NREL) has developed a web portal that shows energy performance data for building products. The Technology Performance Exchange (TPEx) helps energy managers evaluate and compare the energy performance of a particular product or technology class.
The TPEx reduces analysis uncertainty through the use of data entry forms, standardized documents that identify the minimum product-specific performance parameters needed to evaluate a product’s energy performance.
TPEx users are able to perform apples-to-apples comparisons of products. Consumers can also browse the TPEx to find the most appropriate product for their particular use. Currently, the TPEx accepts data for 17 distinct product categories, ranging from solar photovoltaic modules to solid state lighting to compressors.