What is the net present value of these light systems?

Design System

1. Typical - Luminaire Cost $39,000

2. Alternate - Luminaire Cost $49,000

3. LED - Luminaire Cost $92,000

Other Installation Costs

Typical - Requires 24 poles, Material & Labor per Pole $1,800

Alternate - Requires 32 poles, Material & Labor per Pole $1,800

LED - Requires 32 poles, Material & Labor per Pole $1800

Energy Usage and Electricity Costs

Typical - 220,000 Annual kWh

Alternate - 145,000 Annual kWh

LED - 89,000 Annual kWh

Annual Maintenance Costs

Typical - $3,584

Alternate - $5,528

LED - $1,963