Amit Kumar's research program focuses on assessing conventional and non-conventional sources of energy. His research, in significant part, is driven by his interest in the mitigation of greenhouse gas (GHG) emissions. One major problem that mankind faces is climate change, and one of the main reasons behind it is the unrestrained large-scale emission of greenhouse gases. There is little data on the value of GHG credits required for renewable energy technologies to be competitive with fossil fuel energy. Dr. Kumar's research is an effort to fill this gap in knowledge. Biomass use, specifically the capture of energy from biomass that would otherwise decay, is one of many options available to mitigate the impact of GHG emissions from fossil fuel use.

Dr. Kumar's research goals are to rank the myriad options of biomass use (e.g., power, liquid fuels, gaseous fuels, chemicals, by-products, etc.) and to work to reduce biomass energy technology costs. His research program focuses on the techno-economics and modelling of biomass processing, conversion, and use with an aim of contributing to the initiative of a biorefinery development.

In addition, Dr. Kumar studies integrated energy and environmental modelling, life cycle assessments of energy systems, and techno-economic assessments of energy systems.