Inelfe

Inelfe (Interconexión Eléctrica Francia-España) is a joint venture established in 2008 by the national grid operators of Spain (Red Eléctrica de España, REE) and France (Réseau Transport d’Électricité, RTE), each holding an equal stake. Its primary role is to develop, construct, and operate electricity interconnections between France and Spain to enhance electricity exchange and grid stability across the Iberian Peninsula and Europe.

Inelfe has played a key role in HVDC projects, notably overseeing the Baixas–Santa Llogaia underground interconnection and the Biscay Gulf submarine link, both of which use high-voltage direct current technology to significantly boost cross-border transmission capacity between Spain and France.

University of Waterloo

The University of Waterloo is a leading global research-intensive university in Ontario, Canada, renowned for entrepreneurship and innovation, with over 41,000 students and the world's largest post-secondary co-operative education program that connects students with 8,000+ active co-op employers.

ACORE Macro Grid Initiative

The ACORE Macro Grid Initiative is a program dedicated to expanding and upgrading America's transmission network to deliver job growth, economic development, a cleaner environment, and lower costs for consumers. By building support for nationwide transmission upgrades, the initiative aims to integrate more low-cost renewable energy, enhance grid resilience, and enable a modern electric system capable of meeting 21st-century demands.

Specifically, the Macro Grid Initiative promotes the deployment of advanced high-voltage transmission technologies, including high-voltage direct current (HVDC) lines, to better connect regions with abundant renewable resources to areas with high electricity demand. The initiative has played a key role in advancing some of the largest recent transmission expansions in the U.S., helping to maximize the efficiency and capacity of the grid through HVDC infrastructure and related policy reforms.

Tetra Tech

Tetra Tech is a global consulting and engineering firm specializing in transmission and distribution solutions that support power delivery projects worldwide. Their expertise spans planning, managing, routing, permitting, and designing transmission and distribution infrastructure across diverse environments, including challenging climates and urban settings. The company also focuses on creating climate-smart utilities that integrate renewable technologies, enhance grid reliability, and promote equitable energy management.

In the HVDC sector, Tetra Tech provides advanced engineering design and consulting services, including system planning studies, permitting, routing, and siting of HVDC transmission facilities. They leverage cutting-edge technologies and software to support resilient, cybersecure grid solutions and facilitate the integration of renewable energy sources through HVDC systems.

TransWest Express

TransWest Express LLC is developing and constructing critical high-voltage interregional transmission infrastructure to enhance America's power grid reliability, with a focus on delivering approximately 20,000 GWh/yr of electric energy generated in Wyoming to the Desert Southwest region (Arizona, Nevada, and southern California).

The company is specifically working on a planned 728-mile bipolar HVDC transmission line project with ±600 kV voltage capacity and the ability to transfer a maximum power of 3,000 megawatts, connecting the Chokecherry wind farm near Rawlins, Wyoming to a Marketplace substation near Boulder City, Nevada.

Electroenergien Sistemen Operator

Electroenergien Sistemen Operator (ESO) is the independent transmission system operator of Bulgaria, responsible for managing and operating the country's high-voltage electricity transmission grid, which spans more than 15,000 km of power lines and 297 substations. ESO oversees operational regime planning, control of the power system, and collaborates with neighboring countries' networks to ensure the efficient and reliable functioning of Bulgaria's electricity system.

Regarding HVDC activities, there is no specific mention of HVDC operations or projects in the available information about ESO, indicating that their primary focus is on AC high-voltage transmission within the national grid.

Chaucer Group

Chaucer Group is a leading international specialty insurance and reinsurance group headquartered in London with offices overseas, working with brokers, coverholders and clients to protect and support business activities around the world.

The company provides specialty insurance across various sectors, operating both through Lloyd's of London and company markets, with a focus on delivering expert claims management solutions and outstanding service to their clients.