Subdivision Rule Discrimination?

I have recently install a solar array (solar electric system) at my home. Instead of installing on the roof I used a ground mount system, it is on pipe structure in yard. I had everything fully approved by all 3 trustees. Passed all inspections by local municipality and now 3 people in subdivision want me to take down the system. The 3 trustees are about to change their mind and rescind approval. I don’t think they can. They also said because of the controversy they will more than likely ammend the rules to ban all solar panels from subdivision.