$700M Deal Between Diamond and Third Pillar for 500MW Floating Solar in Texas

Diamond Infrastructure Solutions grants Third Pillar Solar exclusive access to its Texas reservoirs to evaluate the potential for 500 MW of floating solar as part of a $700 million investment.

Share:

Subscribe for unlimited access to all the latest energy sector news.

Over 150 multisector articles and analyses every week.

For less than €3/week*

*For an annual commitment

*Engagement annuel à seulement 99 € (au lieu de 149 €), offre valable jusqu'au 30/07/2025 minuit.

Diamond Infrastructure Solutions has signed an agreement with Houston-based Third Pillar Solar, granting the latter exclusive access to Diamond’s reservoirs in Texas. The objective is to assess the feasibility of designing, developing, and deploying utility-scale floating solar projects. This partnership marks a first in North America, both in terms of the scale — up to 500 megawatts (MW) — and the approach of utilizing unused water surfaces.

In addition to power generation, the proposed technology would reduce freshwater evaporation by up to 15%, a significant advantage in regions facing growing water stress. The project aims to utilize existing artificial water bodies, avoiding the use of agricultural or developable land, and aligning with land-use optimization and cost containment strategies.

A Structuring Investment in a Growing Market

According to the information provided, the total investment could reach $700 million. This amount covers feasibility studies, design and construction phases, as well as the operation of the infrastructure by the end of the decade. The full deployment of the floating photovoltaic systems would represent one of the largest initiatives of its kind on the American continent.

Both companies stated that the construction and maintenance of the installations could generate several hundred local jobs. In parallel, Diamond Infrastructure Solutions and Third Pillar Solar plan to rely on regional suppliers to maximize economic impact in the areas affected by the project.

Strategic Emergence Within the Renewable Energy Sector

The initiative highlights the rise of floating solar projects in the North American energy mix, driven by saturation of usable land and potential gains in water efficiency. By positioning themselves in this niche, the two companies aim to capitalize on underutilized surfaces while enhancing regional energy independence.

This model also enables better visual integration by being located on water surfaces out of public view, thus reducing regulatory constraints and local opposition. Additionally, energy yields may be optimized by the natural cooling effect on the floating modules — an attractive factor for large-scale operators.

Outlook and Structure of the Partnership

Diamond Infrastructure Solutions will provide access to its sites and oversee logistics, while Third Pillar Solar will lead the technical studies and operational deployment. The project is based on close cooperation between the two entities, with the goal of bringing the first units online by 2030.

The exclusive partnership could set a strategic precedent for other hydraulic infrastructure owners seeking to diversify the use of their assets. Through this operation, floating solar confirms its growing relevance as an energy integration solution in constrained or pre-developed environments.

Rezolv Energy won three contracts for difference totalling 731MW in Romania’s second auction, supported by public financing mechanisms for renewable energy.
Gentari has started construction at the Maryvale site, a solar project combined with a 409 MWh battery storage system, located in Central-West Orana and backed by a long-term public contract.
Casa dos Ventos has chosen Nextracker to equip four solar and hybrid projects totalling 1.5 GW, marking its first large-scale entry into the solar sector in Brazil.
Melvan obtains €4.26mn in bank financing to develop three solar power plants totalling 3.9 MWp, with construction scheduled to start in the second half of 2025.
Arevon’s Eland Solar-plus-Storage project, with a capacity of 758 megawatts and integrated storage, enters full operation in California after two phases and more than $2 bn in investment.
5N Plus announces the extension of its supply agreement with First Solar, including a 33% increase in cadmium telluride volumes by 2026 and the delivery of new essential materials for photovoltaic production.
Scatec has finalised the financing for its 142 megawatt solar project in Minas Gerais, Brazil, marking a new milestone for the Norwegian company in the South American market.
Fortistar and Epic Star Energy take control of a group of strategic renewable assets, including a solar power plant in Kauai, marking a major milestone for Hawaii's energy development.
According to Wood Mackenzie, the end of the tax credit in the United States could lead to a 46% drop in new residential solar installations by 2030, despite strong long-term market potential.
Audax Renovables commits EUR17mn to a 21.88 MWp solar plant in Navalmoral de la Mata, targeting annual output of 42 GWh, backed by structured financing from the European Investment Bank.
Solarcentury commissions 25 MWp at Mailo, Zambia, connecting for the first time a merchant solar plant to the Southern African Power Pool and begins construction of the next phase.
Solarise Africa secures $3.3mn in financing from Mergence Investment Managers to accelerate the deployment of solar systems for the commercial and industrial sector in Africa.
First Solar anticipates higher revenue for the current year, driven by an increase in solar panel prices following the introduction of new import tariffs.
GoldenPeaks Capital commissions two large-scale photovoltaic plants in Hungary, strengthening the integration of independent solar generation and the electricity supply on the national market.
Emerge has signed a twenty-year contract with Misk City for the supply of solar electricity through a 621 kWp photovoltaic plant, supporting the site’s environmental certification and urban transformation.
SANY begins construction of a 10 MW solar power plant in Zimbabwe, the first African project integrating engineering, procurement and financing, while continuing its expansion in microgrids and hybrid solutions across the continent.
Stem deploys a grid optimisation solution for the Camino solar site, with a capacity of 57 MW, in California, meeting IEEE 2800 standards and targeting operational reliability and market performance.
Green Hybrid Power secures initial $4.4mn financing to launch a 1 GW floating solar power plant in Zimbabwe, aiming to supply 500 MW to industry under a twenty-year contract.
Loblaw Group will deploy a 7.5 MW photovoltaic installation on the roof of its East Gwillimbury distribution centre, generating up to 25% of the site’s annual electricity and marking a new step for the Canadian logistics sector.
Savion, a Shell subsidiary, transfers majority ownership of five solar projects to Tango Holdings, 80% owned by Ares, to optimise the U.S. renewable electricity production portfolio and improve the profitability of the oil group’s investments.
Consent Preferences