GTE activities and expertise covers the following main carbon emission reduction areas:

- Wind Farm projects

- Hydro Power projects above 20 MW

- Small hydro Power project below 20MW

- Geo Thermal Plants

- Methane capture

- Biomass projects

- Fuel Switch

- Landfill project installations

- Nitrous Oxide projects

- Solar Energy projects

- Environmentally and energy efficient special purpose buildings

- Wave; tidal and tidal stream projects

- Bio diversity such as CO₂ sequestration “carbon sinks” providing removal of Greenhouse Gases - certification from Afforestration or Reforestation projects as under UNFCCC Clean Development Mechanism guidelines.

- Energy Efficiency and waste heat recovery carbon Certification

GTE working in collaboration with leading energy efficient experts offers clients the benefit of energy efficiency identification and cost benefit analyses plus carbon certification of projects. Examples include: reduction of energy usage in an industrial environment such as Cement works or Steel Foundries or significant energy savings in Shopping Centres or Hotel Chains, etc.