The Department of the Army, Army Corps of Engineers, Louisville District, has a Design Bid Build requirement to build a Microgrid with Spinning Generation A at Anniston Army Depot, AL.

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• Design-Bid-Build Construction project to provide energy resiliency by providing an on-site, automated energy control / generation storage management system: Construct a microgrid system that will have full islanding capability. The microgrid will integrate the new and existing generation assets with the Nichols, Demil, and Eulaton 46kV / 12.47kV substations to enable islanding for all critical loads. During a grid outage, the automated switching and microgrid controls will enable direct routing of electricity generated by the onsite assets to mission critical loads and load shedding of large blocks of non-critical loads.  The microgrid will be designed in accordance Unified Facility Criteria 4-010-06 Cybersecurity of Facility Related Control Systems, or policy current at time of design, as well as with emerging distribution system operator requirements. This project will be tasked with Construct an installation-wide black-start capable microgrid incorporating 10MW of new firm natural gas (NG) generation and medium voltage distribution switchgear connected at the Eulaton substation that will be owned and operated by Anniston Army Depot (ANAD) to combine with ANAD existing Demil substation solar photovoltaic (PV) array, owned by Alabama Power Company (APC), and the existing Depot-owned NG generation. This project expands upon the previous FY20 ERCIP microgrid, which consists of a 7.5MW natural gas generation and an existing 2.65MW PV array installed at the Nichols substation. This microgrid will integrate the previous microgrid assets, as well as 4.75MW of additional existing APC-owned onsite solar PV at the Demil substation. Additionally, this project will install NG generators, SCADA microgrid controls and communication upgrades at the Nichols, Demil, and Eulaton substations, as well as substation interconnection points between the Nichols and Demil substations, and reclosers to isolate noncritical loads across the Depot. The completed system will utilize automatic switching to isolate from the APC’s electrical distribution system and prioritize critical loads to maintain continuity of operations across ANAD during electrical outages for a minimum of 14 days (required resilience period) IAW 10 USC 2914. Each generator will be equipped with a weather-proof sound attenuating enclosure. A fire hydrant along with a new water line will be installed by the new power plant. A storage shed currently located at the proposed project site will be relocated to a location determined by ANAD Directorate of Public Works (DPW) personnel. This project will tap into an existing natural gas line to feed the newly installed natural gas Reciprocating Internal Combustion Engine (RICE) generators.  Load shedding during utility outages via the microgrid switching system will also ensure continuous energy to critical loads regardless of the intermittency of solar power.
• The microgrid system will support energy resiliency by providing on-site energy generation, this includes solar panels, mounts, inverters, transformers, controls and communication, AC/DC wiring with conduit, low voltage switchgear, and security measures.  The net metering and interconnection agreements will require approval by the utility provider.