Spirae Wave Microgrid and energy distribution solutions provides microgrid control for facility and campus microgrids, remote microgrids, and community microgrids for rural electrification.

  • Facility and campus microgrids focus on cost reduction through time of use arbitrage and demand limiting. They support high penetrations of renewables and optionally provides resilience through grid-outage ride through functionality.
  • Remote microgrids primarily target existing systems powered by fossil-fuels and provide cost savings and carbon footprint reduction displacing diesel fuel consumption with renewables and storage.
  • Community microgrids for rural electrification powers off-grid communities with renewables, energy storage, and distributed generation.

Wave Microgrid Application manages on-premises DER resources to meet loads in island or grid-connected modes. The Wave system monitors loads, generation, and storage and maintains frequency and voltage by dispatching resources according to user-selectable criteria such as least cost, least carbon, and max resiliency.

Benefits

  • Decrease design and implementation costs: Spirae Wave microgrid uses a streamlined process to configure, commission and operate microgrid resulting significant engineering cost savings.
  • Decrease operating costs: Cost-optimized asset dispatch algorithms in Wave Microgrid result in lowest cost system operations to meet load.
  • Flexibility: Wave Microgrid controls are agnostic to the types and brands of DER in a microgrid. Choosing the Spirae solution provides the ultimate flexibility to mix and match system components including legacy equipment such as backup generators.
  • Maximize renewables: The Wave Microgrid controller can incorporate high penetrations of renewables and offset fossil fuels while dynamically adapting to changing conditions.
  • A trusted partner to provide microgrid solutions – Spirae supports its microgrid partners, providing control solutions and associated services to enable project developers, fleet owners, and utilities to economically build and support their microgrid projects.

Use Scenarios


Economic Microgrid


Operation

  • Grid-connected operation with assets dispatched for economic optimization

Objective

  • Manage peak demand, shift loads based on time of use pricing, use on-premises generation, and strategically utilize storage to minimize the cost of electricity to serve load.

Spirae Solution

  • The Wave Microgrid solution dispatches resources according to forecasts and tariff rules. Users can take manual control of the system to operate assets or dispatch system capabilities.

Benefits

  • Reduce energy costs and maximize use of local renewables
  • Capture additional value through market participation and bring demand-side resources to bear in ancillary services markets

Resilience


Operation

  • Normally grid-connected microgrid operates independently of the grid when required. Functionality includes planned and unplanned transition to island state and controlled return to grid-connected state. The system can be blackstarted in the event of outages.

Objective

  • Maintain power when the grid is down.

Spirae Solution

  • Dispatch resources to maintain frequency and voltage of system while maintaining adequate spinning reserves for load and generation fluctuations.

Benefits

  • Energy resilience and business continuity
  • Power places of refuge and community support during extended grid outages
  • Grid operations and maintenance with microgrid serving impacted areas

Remote Systems


Operation

  • Offset maximum levels of diesel through use of renewables and energy storage (and possible demand response/shift) while maintaining reliability. Rural-electrification systems may have no fossil back-up and instead focus on achieving the best service for the available resources.

Objective

  • Reduce costs and carbon while providing reliability.

Spirae Solution

  • Dispatch resources to maintain frequency and voltage of system while maintaining adequate spinning reserves for load and generation fluctuations.

Benefits

  • Electrification
  • Cost and carbon reduction
  • Community empowerment

Architecture

  • Wave is based on a distributed control strategy that makes it easy to integrate any type of distributed energy resource (generation, storage or loads), visualize and monitor assets, and optimally dispatch them for different applications. Dispatch can be carried out manually, scheduled ahead of time, or performed automatically to meet specific objectives.
  • Wave Microgrid can be configured for three different types of operations: i) grid-connected economic-microgrid, where Wave manages generation, demand, and storage to achieve energy cost optimization, ii) resilience-microgrid, where Wave manages local assets to maximize the resiliency of the site to grid outages and switches to island-mode if the grid fails, and iii) island (off-grid) microgrid mode, where Wave continuously runs in island mode to reliably serve loads using local resources.