Energy storage refers to the capture and retention of energy produced at one time for use at a later time. Energy storage plays a crucial role in stabilizing electrical grids, integrating renewable energy sources, and enhancing overall energy efficiency.

Battery storage devices produce no air emissions or radiation and pose minimal fire risk when correctly designed, installed, tested, and operated. These systems include protective features and a battery management system that automatically shuts down in suboptimal operational conditions. The project will utilize lithium iron phosphate (LFP) chemistry, known for its advanced safety and reliability in battery technology. Our development team collaborates closely with local fire authorities to guarantee project safety, and approval from these authorities is mandatory before facility operations commence.

We develop battery energy storage facilities near existing substations or distribution lines to ensure convenient access to the transmission system. Our sites are selected to optimize support and value for the electric grid, while also minimizing the project's overall footprint.

Passive Income Opportunities: Through our leasing program, landowners can earn steady rental income without the need for active management. This additional revenue stream can provide financial stability and diversification for your property investments.

Land Use Flexibility: Our energy storage solutions are designed to integrate seamlessly into various types of land use, offering flexibility for landowners. Whether you have agricultural, industrial, or commercial land, our systems can be tailored to fit your specific needs without disrupting your current operations.

Minimal Impact: Our compact and efficient designs ensure that our systems occupy a small footprint, preserving the aesthetic and functionality of your property. Energy storage facilities are constructed to be quiet during operation, and a noise study will be conducted in accordance with the Washington State Environmental Policy Act.

Negotiation: Our leasing process is designed to be straightforward and mutually beneficial for landowners. Initially, we engage in open negotiations to establish lease terms that align with your preferences and property requirements. This includes discussing rental rates, lease duration, and any specific considerations you may have.

Permitting: Once lease terms are agreed upon, our team handles the permitting process in collaboration with local authorities and regulatory bodies. We manage all aspects of permitting, from initial applications to final approvals, ensuring compliance with all relevant environmental and zoning regulations. Throughout this stage, we keep you informed of progress.

Construction: Upon securing permits, we proceed with the construction of the battery energy storage system on your property. Our experienced team manages all aspects of construction, adhering to agreed-upon timelines and minimizing disruption to your daily operations. We prioritize efficient project management and effective communication to ensure that construction proceeds smoothly and meets both our high-quality standards and your expectations. During construction, we prioritize safety, environmental responsibility, and respect for your property.

Construction is expected to commence in late 2025 or early 2026, following completion of the permitting process and securing electrical grid authorizations. The construction phase is anticipated to span approximately 12 months.

The project will benefit from regular maintenance and upkeep of the system installed on your property, including:

Routine Inspections: Regular checks to ensure all components are functioning properly and efficiently.

Performance Monitoring: Continuous monitoring of system performance to detect any anomalies or inefficiencies.

Repairs and Upgrades: Prompt response to repair issues and implement upgrades to improve system performance or efficiency.

Our commitment to proactive maintenance not only ensures the reliability and efficiency of the energy storage system but also minimizes any disruptions to your operations. We value our partnership with landowners and prioritize open communication regarding maintenance schedules and any necessary interventions.

Approximately 20 to 30 years.

At the conclusion of the lease term, Mammoth Summit will work collaboratively with you to determine the next steps based on our mutual interests and prevailing circumstances. Options may include renewing the lease agreement for an extended period, decommissioning the battery energy storage system in accordance with regulatory requirements, or exploring alternative arrangements that align with your future plans for the property.

Several other battery energy storage projects have been proposed and completed in Washington State. For more information, please visit the Battery Storage Projects page on Puget Sound Energy’s website.