Keith Baker
Keith Baker
Hello all:
I replaced my 1000 watt HPS lights last summer with 144 watt LEDs. Here's the data after 3 months:
Sept. through Nov. in 2013 averaged $391.00 per month. The same period in 2014 averaged $295.00 per month.
The demand revenue charge did not change any. It is still a constant $93.24 per month.
The 5 lights cost $1396.00 total and I paid $213.00 to rent the man lift. I did the labor myself.
If the 3 month average savings holds, the project should pay back in about 17 months.
The lights aren't as bright as the 1000 watt fixtures I had, but they are adequate. They were advertised to be 400 watt equivalent and I would say that is about right. I purchased 2 of the cool white and 3 of the natural white. The LED fixtures are focused in a narrower pattern than the HPS. They claim that I won't need to replace them for 20 years, where I had to relamp the HPS fixtures every 3 to 4 years.
Overall I would say this was worthwhile.
Keith
I replaced my 1000 watt HPS lights last summer with 144 watt LEDs. Here's the data after 3 months:
Sept. through Nov. in 2013 averaged $391.00 per month. The same period in 2014 averaged $295.00 per month.
The demand revenue charge did not change any. It is still a constant $93.24 per month.
The 5 lights cost $1396.00 total and I paid $213.00 to rent the man lift. I did the labor myself.
If the 3 month average savings holds, the project should pay back in about 17 months.
The lights aren't as bright as the 1000 watt fixtures I had, but they are adequate. They were advertised to be 400 watt equivalent and I would say that is about right. I purchased 2 of the cool white and 3 of the natural white. The LED fixtures are focused in a narrower pattern than the HPS. They claim that I won't need to replace them for 20 years, where I had to relamp the HPS fixtures every 3 to 4 years.
Overall I would say this was worthwhile.
Keith