Vancouver – (May 5, 2026) – SHARC International Systems Inc. (CSE: SHRC) (FSE: IWIA) (OTCQB: INTWF) (“SHARC Energy” or the “Company”), a global leader in Wastewater Energy Transfer (“WET”) technology, is pleased to announce that it has received a purchase order from the National Laboratory of the Rockies (NLR), a federally funded research laboratory operated by Alliance for Energy Innovation, LLC.
The purchase order supports the deployment of SHARC Energy’s PIRANHA wastewater heat recovery system as part of a high-profile U.S. Department of War (DoW)-supported program at the Naval Postgraduate School’s historic Hotel Del Monte in Monterey, California.
This program is focused on advancing high-efficiency domestic hot water retrofit solutions for large institutional facilities, one of the most energy-intensive and difficult-to-modernize building systems across DoW, formerly known as Department of Defence (DoD), infrastructure. The initiative aims to validate scalable, cost-effective technologies that improve building performance, reduce operating costs, and enhance energy resilience.
Currently, there are 150,000 space heating and cooling units and more than 70,000 domestic hot water heaters at DoW installations. Many of these legacy units operate at poor efficiency levels due to lack of adequate and consistent preventative and regular maintenance of these units over the years.
SHARC Energy’s PIRANHA system is an integrated, all-electric WET solution that captures thermal energy from a building’s wastewater stream and upgrades it via a water-to-water heat pump to deliver high-efficiency domestic hot water. The recently developed PIRANHA HC system can produce up to 100% of a building’s hot water demand at 140°F year-round, while simultaneously providing supplemental cooling and dehumidification.
The installed system is expected to deliver approximately 120,000 Btu/h of domestic hot water capacity, alongside integrated cooling and dehumidification, enabling simultaneous heating and cooling from a single packaged unit. By leveraging wastewater as a stable thermal source, the PIRANHA system operates at high efficiency year-round in any climate and avoids many of the limitations of conventional air-source heat pumps, including reduced efficiency in cold climates and the need for auxiliary heating.
The broader program targets up to 60% energy cost savings for domestic hot water systems, supporting the economic case for large-scale retrofit deployment across military, institutional, and commercial building portfolios.
“This purchase order represents an important step in expanding SHARC Energy’s presence within U.S. federal and institutional markets,” said Michael Albertson, CEO of SHARC Energy. “Our PIRANHA technology is ideally suited for retrofit applications where energy efficiency, cost savings, and system resilience are critical. We are proud to support the National Laboratory of the Rockies and its partners in advancing scalable solutions for high-performance buildings.”
The project also includes collaboration with Honeywell as a technology transition partner, leveraging its extensive experience in energy performance contracting (ESPC) to support future commercialization and deployment across existing customer portfolios. Insights from the program are expected to inform the economics and scalability of domestic hot water system retrofits across a wide range of facilities.
The PIRANHA system’s compact, packaged design allows for simplified installation in retrofit environments, with features including:
- All-in-one wastewater heat recovery, hot water generation, and cooling
- Simultaneous heating and cooling capability
- No requirement for maceration or pre-filtration
- Compatibility with both blackwater and greywater systems
- Quiet operation, remote monitoring, and modular scalability
The project is expected to generate real-world performance data to support broader adoption of wastewater energy recovery technologies across North America.
