A close up of white BESS. They are set on concrete and there is a thick layer of gravel below. They sky above is a grayish white - almost the same color as the BESS units. The Tesla logo is on the first unit you see in the top left.

Firestone (BESS)

16 MW hrs storage capacity

This Battery Energy Storage System (BESS) is projected to save United Power as much as $1 million annually by storing energy and releasing it during peak demand times.

The batteries supplied by Tesla will have a storage capacity of 16MW hrs — enough to simultaneously power 600 to 700 homes. These batteries are larger versions of the lithium ion batteries found in Tesla's electric vehicles.

< Portfolio

Choose ISI Solar

Connect with our experts for dependable renewable energy solutions that drive sustainability and growth.

Contact ISI Solar

Connecting expert solar energy solutions with integrity & accountability

top solar award badge

ISI Solar delivers expert power solutions today for tomorrow’s energy needs.

client icon

Our Clients

We serve top energy Developers, Utilities, Municipalities, Community Solar, Cooperatives, and Independent Power Producers nationwide. Our expertise provides quality Utility-Scale solar solutions tailored to their success.

target with checkmark icon

Safety is our foundation

Our expert team follows rigorous protocols and continuous training to ensure a secure environment for every solar installation. Trust us for renewable energy safety you can rely on.

hands holding plant icon

Sustainable Growth

Meeting decarbonization targets may feel out of reach. ISI Solar delivers sustainable, tailored solar solutions. Partner with us to align with renewable energy goals.

gear icon

Scalable Solar Projects

Don't let complex projects delay your renewable energy goals. ISI Solar’s expert EPC services streamline the development process. Our integrated approach ensures high-quality solutions that meet or exceed delivery expectations.

battery icon

Grid Stability

Fluctuating grids threaten reliable power supply. Our utility-scale solar solutions with BESS enhance stability. Leverage our proven expertise for resilient energy solutions.

dollar and growth chart icon

Cost-Effective Power

High costs reduce your competitive edge. ISI Solar optimizes ROI with efficient solar designs. Trust our expertise for cost-saving, high-performance systems.

brain icon

Unmatched Expertise

Our extensive knowledge and experience in the solar industry provides our clients reliable, efficient, and sustainable energy solutions that exceed expectations while maintaining the highest degree of safety.