Verdant Power Advances Long Island Sound Grid Connection Study with TEAMER Support
September 2026 — Verdant Power is advancing the Long Island Sound Tidal Energy Project (LISTEP) through a new TEAMER Request for Technical Support 18 award with 3U Technologies. Together, the teams are conducting a techno-economic analysis of the project’s grid-interconnection options.
Grid connection infrastructure
The analysis focuses on the infrastructure needed to transmit electricity from an array of tidal energy converters to the New York State electrical grid. The team is examining subsea and terrestrial cabling, subsea connections, potential power-consolidation systems, cable landfall, installation requirements, operations and maintenance, and integration with onshore infrastructure.
Engineering and scale
3U Technologies brings extensive experience in subsea power transmission and marine cable systems to the project. The company is developing system requirements, evaluating engineering alternatives, identifying supply-chain options, and preparing cost and risk analyses. This work supports Verdant’s proposed initial deployment of approximately 7 MW and plans for future expansion to LISTEP’s full capacity of up to 30 MW.
Technical and commercial outputs
The project is producing system requirements and specifications, a risk matrix, preliminary cost and schedule estimates, supply-chain considerations, and a business-case analysis. These resources give Verdant the technical and commercial information needed to advance LISTEP toward utility-scale deployment and a future investment decision.
Building on earlier research
The work builds on Verdant’s earlier TEAMER-supported resource assessment and moves LISTEP closer to delivering predictable, utility-scale tidal energy to the New York State grid.
Cornish firm set to benefit from £8m Welsh Government investment in tidal energy project
Cornish renewable energy firm is set to benefit from an £8 million equity investment by the Welsh Government in the Morlais tidal energy project, set to be the largest tidal scheme in Europe, to support its expansion and strengthen grid connections.
Cornwall-based Inyanga Marine has developed next generation tidal energy technology to be deployed at the site, which is based off the coast of Anglesey and set to begin operations in in 2026.
TEAMER Network Director Announces RFTS 13 Technical Support Recipients
Inyanga Marine and Verdant Morlais to work on 4.9 MW tidal stream energy project in Wales
Over 22MW of Tidal Stream Projects Win Contracts in Wales
Marine Energy Wales has welcomed today’s announcement that four tidal stream projects based in Welsh waters, have been given the green light to provide electricity to the National Grid, as part of the latest round (allocation round 5) of the UK Government’s renewable auction. Over 22MW of tidal stream capacity has been contracted in Wales.
Meet The Developers Behind Wales' Newest Tidal Stream Projects
The latest results of the UK Government’s renewable auction, the Contracts for Difference scheme, was described as ‘catastrophic’ for the offshore wind sector. But tidal stream energy in the UK was awarded a huge boost, with 11 companies successfully gaining contracts. The auction awards a 15-year contract to the projects that bid the lowest price for the clean electricity they go on to generate. At an agreed strike price of £198/MWh, the developers behind these projects can now move forward with confidence.
Verdant Isles Awarded 5MW AR5 Contract for Difference (CfD) for Morlais Project
Verdant Isles Ltd.(VIL)is pleased to announce that it’s 5MW Morlais Tidal Project application for the Contracts for Difference Allocation Round 5: Allocation Framework (AR5) successfully met the qualification criteria by the EMR delivery body. VIL is a joint venture company established by Verdant Power, Inc. (New York, NY) and Duggan Brothers Ltd. (Ireland) to assess and develop tidal energy projects in Ireland and the United Kingdom.
NREL's Thermoplastic Blade Research Dives Deep With Verdant Power's Tidal Energy Turbines
National Renewable Energy Laboratory (NREL) researchers have been exploring the use of thermoplastic composite materials for wind turbines for several years, but they have only just begun to scrape the surface of how these materials perform underwater. For the first time in history, thermoplastic composite blades, which have the potential to revolutionize the marine energy industry, are being tested on a large-scale tidal power turbine.
A Milestone for Tidal Energy: Verdant Power Successfully Retrieves a Test Turbine After Six Months of Continuous Operation in New York
Supported by the U.S. Department of Energy’s Water Power Technologies Office (WPTO), the RITE Project aims to demonstrate clean distributed energy to New York and how such technology could be used throughout the world.
Marine Energy Innovation: Insights from Verdant Power
Marine energy leader Verdant Power developed the first commercially licensed tidal power project in the United States, generating clean energy from the natural tidal currents of New York City’s East River. Agreeing to an interview with the National Hydropower Association’s POWERHOUSE media platform, Verdant Power wants to share exclusive insight into its experience developing a marine energy project, the technology at play, the results of the work, and what comes next.
Verdant Power feeds over 200MWh of tidal power to U.S. grid as it gears up for R&R op
Verdant Power’s three-turbine tidal energy array has generated 200MWh of tidal power to the United States electricity grid in its first six months of continuous operation, marking the country’s record for marine energy production. The company will now move forward with a retrieve-and-replace (R&R) operation for one of the turbines.
Verdant Power’s Tidal Power Project Celebrates Earth Day Milestones
This Earth Day, Verdant Power is celebrating a major milestone—exactly six months since its Roosevelt Island Tidal Energy (RITE) Project, featuring its TriFrame™ mount housing three tidal power turbines, successfully deployed in New York City’s East River – a tidal strait. In that time, the one-half scale demonstration array has continuously operated and generated 210 megawatt-hours —a U.S. record for marine energy production. Most importantly, the turbines performed at over 99% availability, and overall water-to-wire efficiencies reached to over 46%.
3 Tidal Turbines Pop Into New York City's East River
“The RITE Project activity is a technology demonstration of Verdant Power’s fifth-generation tidal power system and its novel TriFrame™ mounting system,” the company notes, “which is the next step on a pathway to global commercialization and profitable commercial operations.” What do you think — will tidal turbines like this be getting installed in water bodies around the world? They do have an appealing look.
Tidal Testing Underway in New York’s East River
The project aims to demonstrate a streamlined installation and maintenance approach as well as long-term system reliability that will help inform future deployments for Verdant and others in the marine renewable energy industry.
In Quest for River’s Power, an Underwater Test Spin
Marine energy company Verdant Power has plopped three tidal power turbines into New York City’s East River on one array. This is called the Roosevelt Island Tidal Energy (RITE) Project, and it is indeed the first US-licensed tidal power project
Powering the Future: Underwater turbines harness river power
New York City’s East River isn’t, technically, a river: It is a tidal strait that runs between Manhattan and Queens, connecting New York Harbor to Long Island Sound. But it sure can move like one: The current can reach a top speed of more than six feet per second, enough to turn swimming upstream into a serious challenge.