T+T has more than 50 years’ experience in the energy sector, commencing with site investigations for New Zealand’s Tongariro Power Scheme and Marsden Point refinery in the 1960s. This was followed by a number of major hydropower, thermal and geothermal generation projects throughout Asia-Pacific in the 1970s.

Today, we are still active in those generation modes, as well as wind, solar, transmission and distribution projects, in locations from the South Pacific to West Africa.

We assist our clients in all phases of project development: investigation, feasibility, detailed design, construction, commissioning, and operation and maintenance including safety and surveillance.

T+T provides expertise to the energy sector in numerous areas, including:

  • Hydropower engineering

  • Geological and geotechnical engineering

  • Tunnel design

  • Spillway and hydraulic structures design

  • Hydrology, hydraulics and modelling

  • Hydro-energy modelling

  • Seismic analysis and modelling

  • Pipeline design

  • River engineering

  • Consenting and permitting

  • Environment impact assessment

  • Biodiversity offsets

  • Earth and rockfill dam eningeering

  • Project management

  • Construction management and commissioning

  • Independent engineering services

  • Peer review

  • Due diligence services

  • Dam safety audit

  • Dambreak assessment

  • Emergency or contingency planning

  • Portfolio or contingency planning

  • Portfolio risk assessments