The Maine Technology Institute has awarded two Maine firms nearly $900,000 in grants to develop innovative technologies in the state.

WindFloat Maine, a subsidiary of Seattle, Wash.-based Principle Power Inc., received $500,000 to help fund the development of the company’s WindFloat, a floating foundation for deepwater, offshore wind turbines.

Principle Power is a member of DeepCwind, a University of Maine-led consortium of nonprofit groups and private firms that are working to make Maine a leader in offshore wind technology.

The company hopes the platform will one day be used off the Maine coast.

Abierto Networks LLC in Eliot received a grant of $398,826 for a “Digital Marketing Platform” targeted to convenience stores.

Abierto’s system allows convenience store owners to control – and change – digital advertisements in their stores from a remote location. They can also use the system to send electronic coupons to consumers’ mobile phones.