Solar/Google Maps Mashup

Just found this from You can overlay a solar path for any day of the year on any location in google maps – including satellite view.  This is a great lite resource – not a substitute for a real altitude azimuth diagram but good for quick visualization. For a deeper look, my default is still… More

Aerzen’s Solar Dashboard

It’s Friday, October 31, 2014 and Aerzen’s headquarters in Coatesville, PA is generating 48.57 kW on a mostly clear day. Thus far the solar array has generated 484006.99 kW hours since February 2013. It’s CO2 offset equals to saving 8,712 trees and its energy generated equals to 39,204 gallons of gas saved. How did I,… More

Post-Occupancy Plea for Data

Dear Owners, We design, we consult, we model, we stress about an insane amount of minutiae, and then we sit and wonder how projects are actually performing.  One easy gauge is your utility bills.  We deeply appreciate when you send them to us…you are helping us identify possible issues and shape what we do on… More

Re-Purpose Ideas

I am in awe of the wide array of salvaged materials generated by this company, as well as the creative re-purpose ideas they feature from their customers.  75,000 unused kitty litter bags anyone?  How about an ACTUAL RAILROAD BRIDGE?  Their periodic newsletter is oddly addictive, and useful. Repurposed Materials website

LEED Platinum EBOM and how we got there

If you missed our blazing Open House or had too much fun and didn’t get a chance to check out our LEED Platinum EBOM presentation, take a look and learn how we got the highest rated LEED EBOM project in Pennsylvania.  REVISION LEED EBOM Presentation


I suppose a blog is as good a place as any to get out your pet peeves.  One of mine is the “Net-Zero Energy” label on buildings that are still in design.  As I write that, I am thinking “Oh crickey, I bet I am guilty of that.”  Yes, I may have gotten sloppy myself… More


I realize Office Manuals don’t make for the most exciting reading but I think there is a section in our handbook that Philadelphia employers should know more about… “Re:Vision participates in the Home Buy Now program offered by the City of Philadelphia designed to encourage homeownership in Philadelphia. It’s good for the City, it’s good… More


I field lots of calls of homeowners curious about building their own home. In order of frequency, here are the most typical questions: costs (!!!), process (who does what?), schedule, and pros/cons of new vs renovation. Every so often you get a wild-card question too, like yesterday when Craig Claudin (a cameraman who got the… More