NextEra Energy is partnering with Entergy to develop up to 4.5 gigawatts of solar generation and energy storage projects, the companies said on June 7.

The two companies entered a 5-year joint development agreement to accelerate development of projects in Arkansas, Louisiana, Mississippi and Texas.

“We believe the power sector is at an inflection point, and growing electricity demand will be met by low-cost, renewable generation and storage,” said Rebecca Kujawa, president and CEO of NextEra Energy Resources, the renewable energy unit of NextEra. “We’re pleased to reach this agreement because it further strengthens our long-standing collaboration and adds up to 4.5 GW on top of the more than 1.7 GW of renewable energy projects already underway with Entergy.”

The agreement comes as Entergy works to grow its renewable capacity to about 9 GW by 2031. In April, the Louisiana-headquartered company had about 8.9 GW of renewable generation projects in service or in development. Entergy currently provides electricity for about 3 million utility customers in Arkansas, Louisiana, Mississippi and Texas.