Icon for iOS Energy App

Want to win a job like this?
This customer received 35 icon designs from 15 designers. They chose this icon design from Vinchi as the winning design.
Join for free Find Design Jobs- Guaranteed
Icon Design Brief
The app is basically a spreadsheet on your phone. It allows users to calulate the energy and financial performance within commercial buildings.
The theme is along the lines of "energy+financial feasibility".
Words I would use to describe it would be:
simple
sophisticated
catchy but not flashy
professional
hi-tech but not nerdy
The icon will need to be created inline with the iOS Human Interface Guidelines and packaged in a range of sizes specified in the iOS developer library.
Client likes the new simple style iOS icons - something really simple, pretty straightforward and professional.
An example of what the client likes is attached.
He would like to see a similar 'energy' bolt combined with perhaps a graph line or bars
Updates
Project Deadline Extended
Reason: I will be choosing a final designs later this week. Thank you.
Added Tuesday, November 05, 2013
Project Deadline Extended
Reason: Hello and thank you all again for your designs. They are great.
I have had client feedback as follows.
They like the new simple style iOS icons - something really simple, pretty straightforward and professional
I will post an example they like on the message board or project brief.
He would like to see a similar 'energy' bolt combined with perhaps a graph line or bar
simple chart.
I hope you can help.
many thanks again in advance.
Added Sunday, November 10, 2013
Target Market(s)
Facilities managers, energy companies, specialist building tradies, green auditors.
Industry/Entity Type
Financial
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Should not have
- Cartoon-esque imagery