Renewal
Back-Up Generator

Cost
Explanation & Distribution

To all,

Initially, we sent a quick generic estimate for the generator replacement project. Below is a brief explanation of the small differences between the original estimate and the final cost.

During the first evaluation, we believed the old generator would need to be fully disassembled in order to remove it from the generator room. After further inspection and with additional manpower, we were able to remove the old unit intact. This allowed us to recover some value from the old generator, helping offset part of the project cost.

Regarding the transfer switch, the original estimate was based on a manual transfer switch. During the project, we decided to upgrade to an automatic transfer switch because the additional cost was relatively small compared to the convenience and operational benefits it provides. The automatic system allows the generator to switch power automatically during outages, making operation much easier and more reliable for the building.

Separately, additional work was required on the generator room and entrance because the existing steel door and frame were already in poor condition, the steel door frame had to be completely removed from the concrete opening. Because of its condition and the removal process, the old door and frame were replaced.

In addition, outside the generator room there was an existing support structure for our tree that had to be modified in order to allow crane access for the installation. This required relocating the concrete support poles, pruning the tree extensively, and clearing the area so the crane could safely position the new generator into place.

The new generator system also required the installation of proper ventilation ducting to safely exhaust engine heat from the generator room and maintain adequate operating temperatures.

In addition, the fuel supply line between the diesel tank and the new generator required replacement to ensure safe and reliable operation of the system.

Overall, the final numbers remain very close to the original estimate. The purpose of this explanation is simply to provide a more detailed breakdown of the adjustments and costs involved during the project.

Detailed Cost Distribution

New Standby Generator
including removal, delivery and installation
$15,700

Automatic Transfer Switch + installation
$1,877

Generator heat exhaust system
$400

New fuel line and fuel filter
$63

Preparation of generator room and access area, pruning,
relocation tree-support poles, degreasing, power washing,
painting repair and roof repairs
(Labor: $430 / Materials & tools: $132):
$562

New steel door installation:
$200

6 day generator rental
$420

Insurance premium to cover the new generator
(period until policy renewal)
$258

Project supervision:
$500

"Estimated"
sale/trade-in value of old generator:
-$2,000