Since the upgrade, the company is saving substantial amounts on their energy bill. You can see by the graph below (taken directly from their energy bill) their usage has halved, and this bill does not cover the full period since the upgrade was undertaken.
In addition to the energy savings, ITS will also save on maintenance given the long lifespan of the LED lights. They will no longer need to frequently change globes which is especially important where access is difficult.
We were able to claim a rebate for ITS under the NSW Energy Savings Scheme. The rebate was paid up-front which helped ease the cost of transitioning to the new energy efficient lighting.