Products & Services | MEMSIS | Mitsui & Co. Energy Marketing and Services (USA), Inc.

LSE, Load Scheduling Entity. The party responsible for serving and scheduling your electricity load. QSE, Qualified Scheduling Entity. The party authorized to schedule and settle your load directly in the ERCOT market on your behalf. DR, Demand Response. Programs that pay you to reduce consumption when the grid is under stress.

The MEMSIS Energy Roadmap

An energy partner that scales with your operation.

A large energy load is not one problem to solve but several, and they rarely arrive all at once. You need supply you can rely on, a way to participate in the wholesale market, the ability to fold in your own generation and storage, and a steady hand keeping the whole position optimized over time. We bring all four together under one partner, so you can engage at the depth that fits you now and go further whenever you are ready.

Stage 01 / 04

Retail Energy Products

Reliable supply, engineered for large and complex loads.

We deliver structured power across ERCOT for loads of five megawatts and above. Supply is built around how your operation actually runs, with the reliability and counterparty strength that come from a business backed by Mitsui and Company.

We supply commercial and industrial operations across ERCOT.
We structure products around your consumption profile rather than a fixed template.
You gain the financial backing of a global trading house behind every agreement.

LSE, QSE & DR Services

Step into the wholesale market with us representing you.

As your QSE, we schedule and settle your load directly in the market, so you participate without building a trading desk of your own. Where your load can flex, we turn that flexibility into a revenue stream through DR.

We act as your LSE and QSE across ERCOT.
We schedule, settle, and manage your market position so your team does not have to.
We enroll your flexible load in demand response programs that pay you to curtail when the grid needs it.

Engineer inspecting an on-site solar array

Behind-the-Meter Solutions

Bring your own generation and storage into the strategy.

When you add on-site generation, storage, or other behind-the-meter assets, we integrate them into your overall energy position. This lowers your exposure to the grid, strengthens resilience, and gives you more control over how and when you draw power.

We integrate on-site solar, gas generation, and battery storage into your supply strategy.
We design behind-the-meter structures that improve resilience and reduce grid exposure.
We coordinate your assets with the market so they create value around the clock.

Wind turbines and a solar field across an energy landscape

Asset Management

Optimize your entire energy position over time.

As your needs grow more complex, we manage the whole portfolio as a single position. We continuously balance supply, market participation, flexibility, and your own assets, so your strategy keeps performing as the markets and your business change.

We manage your full energy portfolio as one coordinated position.
We optimize across supply, hedging, market participation, and your own assets.
We adapt your strategy as market conditions and your operations evolve.

MEMSIS — Contact Card

Get in Touch

Contact Us

Questions about your account or service? Our team is here to help.

Email support@memsis-usa.com Customer Service 833-574-8877

Menu

An energy partner that scales with your operation.

Reliable supply, engineered for large and complex loads.

Step into the wholesale market with us representing you.

Bring your own generation and storage into the strategy.

Optimize your entire energy position over time.

Contact Us

About Us

Commodities

Careers

Group Companies