Replacing Diesel Generators with Oasis Microgrids
Replacing Diesel Generators in Remote and Critical Sites with Electrostatic Microgrids
Diesel generators have long provided dependable backup and off-grid power across a wide range of applications. From remote villages to industrial facilities and military bases, they have been the default solution when grid power is unavailable or unreliable. However, as the energy landscape evolves, new technologies now allow organizations to meet the same needs with cleaner, longer-lasting, and lower-maintenance systems.
The Harnyss Oasis system is one such solution. It uses electrostatic energy storage modules that provide immediate, conditioned power from solar or grid sources. These modules can operate independently or be integrated into a fully self-contained microgrid, offering a resilient and scalable alternative to diesel generators for backup and UPS functions in mission-critical and remote environments.
Electrostatic Energy Storage Backed by Onboard Hydrogen
The Oasis system is based on high-density, electrostatic energy storage using non-lithium solid-state technology. These storage modules operate with no degradation across over 500,000 full charge and discharge cycles. They offer a 20 to 30-year service life without requiring thermal management or replacement.
Each system is equipped with a full suite of integrated components. These include energy management software, inverters, MPPTs, switchgear, and black-start-ready controls. The result is a plug-and-play architecture that can serve as a primary energy buffer for grid or renewable sources and as a reliable uninterruptible power supply for sensitive infrastructure.
Where additional redundancy is needed, Oasis systems can include onboard hydrogen generation, low-pressure storage, and fuel cells. These components provide extended-duration backup during periods of low sunlight, grid outage, or delayed resupply, enhancing the reliability of the system without requiring fuel deliveries or combustion-based engines.
Functional Equivalency with Diesel, Without the Fuel or Emissions
In remote or islanded locations, power continuity is a critical factor. Diesel has traditionally filled this role, but fuel delivery, emissions compliance, and maintenance can pose challenges. The Oasis system meets the same performance expectations using a zero-fuel architecture, while also providing additional benefits such as:
- Instantaneous response to load fluctuations and outages
- No combustion, no off-gassing, and no permitting requirements related to air emissions
- No risk of thermal runaway, even under extreme temperatures
- Minimal maintenance, with no oil, filters, or mechanical components to service
- Seamless transition between solar, grid, and hydrogen-backed power supplies
The Oasis platform operates reliably from -30°C to +70°C, making it suitable for deployment in hot, humid, arid, or high-altitude environments. It also supports grid-forming and voltage regulation capabilities for utility and industrial applications.
Flexible Deployment and Modular Scaling
The Harnyss Oasis is available in 20-foot and 40-foot containerized units, each pre-integrated and pre-tested. Systems can be configured from 500 kilowatt-hours up to 100 megawatt-hours through modular expansion, allowing operators to size the storage capacity to match local load requirements.
Applications include:
- Remote microgrids with solar and no grid connection
- UPS systems for data centers, health clinics, and defense installations
- Peak shaving and frequency regulation for utilities
- Emergency backup power where grid reliability is intermittent
In each of these settings, the Oasis system provides clean and continuous power without reliance on external fuel or recurring deliveries. It enables long-term infrastructure planning with predictable operating costs and low environmental impact.
Supporting Energy Resilience and Operational Continuity
Whether used in isolated regions or connected facilities that require high uptime, electrostatic storage offers a practical solution for replacing diesel backup systems. Its long cycle life, low maintenance profile, and ability to integrate with both renewable and grid inputs make it a flexible asset for energy resilience.
The addition of onboard hydrogen generation further enhances the Oasis platform's capability by supplying fuel for power generation during extended outages. This feature allows facilities to operate independently for long durations without needing external fuel, reducing logistics risks and improving sustainability.
Conclusion
Diesel generators have served an important role in power continuity, particularly where reliability is essential. Today, energy professionals have new options that meet these same needs with cleaner, more efficient, and longer-lasting systems. The Harnyss Oasis platform offers electrostatic energy storage with onboard hydrogen backup, serving as a modern replacement for diesel in backup and UPS applications.
For operators in remote, islanded, or mission-critical locations, Oasis delivers a dependable and sustainable path forward for resilient energy storage.
