Oak Bluffs town officials are bracing for a time when the five municipal wellls can no longer satisfy the summer demand.

A planned solar array on land owned by the Oak Bluffs water district remains in the slow lane as developers prepare to return to the Martha’s Vineyard Commission later this month.

The Oak Bluffs water district hopes to offset costs by developing a three-megawatt solar array off Barnes Road.

Due for major repairs, the two million-gallon tank will be drained next month. Meanwhile, during the 10-week project, Oak Bluffs will receive its town water from Edgartown.