Established in 1920, Electrical Engineering Company known as 3E, is an industry leader with diverse capabilities. We are a group of related businesses working together to enhance service to the electrical industry.

Business Support Solutions
Electrical Supplies & Services
Power Distribution & Energy Management
Commercial Lighting & Control
Industrial Supplies
ITS / Information Technology Systems
Electrical Apparatus Repair
Control Panels / Value Add Service
Custom Steel Fabrication & Equipment




Potential Solar Sites

Key Questions and Red Flags

Ask Yourself Five Key Questions

  1. Does the site really have good sun exposure between 9 a.m. - 4 p.m.?
  2. How old is the roof and how much time is remaining on the warranty?
  3. Will the roof hold additional weight?
  4. Can you penetrate the roof?
  5. Can you interconnect the solar system to the grid, considering the property's utility company and service voltage?

Watch For These Red Flags!

  • Non-standard utility company (other than IPL-Alliant Energy, Mid-American Energy, Rural Electric Coop and Municipalities)(Rate schedule, interconnection, incentives may be a complicated process)
  • Any shade, even partial (Shade of any size can limit production capabilities)
  • Lots of obstacles on the roof like HVAC and vents (They cause shade and may require a decrease system footprint)
  • Multiple slopes and angels on the roof (May increase design complexity and installation costs)
  • An old roof in poor condition (A solar system lasts 20 years)
  • No access to rafters (The roof might not be structurally sufficient to hold the weight of a system)
  • Old electrical switch gear (May limit sizing of array and/or interconnection options)
  • Long distances or poor access to the power source(meter) (May limit design options)
  • A tilt-up building structure (Limits the options for solar due to structural loading)
  • Ground mount area with rocky soil, uneven terrain (Adds to cost)
  • Home Owner's Associations (HOAs can demand special requirements)
  • Internet access for monitoring (Internet access is required within 6' of inverter location. Can owner provide?)
  • Undiscovered conditions (Buried boulders or hidden roof structure can limit design options and add to cost)

Statistics Reinforce Your Solutions & Provide Credibility

Our employee-owners are empowered to give it everything we've got to bolster your bottom line.

Ideas Generate Innovation

Custom wire and cable solutions, online ordering, drive-through service and more.

Orders are promises

Same-day delivery, 800+ brands, and best-in-class fulfillment.

Expertise is essential

On-call technical troubleshooting and six dedicated teams of product specialists.

Gratitude gives back

Volunteering and providing financial support to our communities.

Latest News

Learn about our recent projects, best practices, newest products, latest news and more.

Don't Take Our Word For It

Testimonials are a powerful selling tool. Ask some of your better known affiliations to share a few words about how you've made their lives easier.

"What A Wonderful Team To Rely On"

Ned Plimpton, Belafonte Co.

I'm continually blown away by the team at Symphony. They rock! I would come back again and again.

"Produced With Perfection In Mind"

Walter Sobchak, Rug Collector LLC

I don't know what I would do without Symphony. My happiness has gone through the roof :)

"This Product Blew Me Away"

Lucille Bluth, Real Estate Inc. Group

My expectations were exceeded beyond belief.  The product was wonderful and it asnwered all my problems!