Boulder, since 2016
We stopped selling panels on their own in 2019
Too many oversized arrays on leaky houses. From that year every solar proposal has required an audit first. Revenue dipped for eight months and then recovered, and the sites we build now actually perform.
- Founded
- 2016
- People
- 11
- Homes
- 595 since 2016
Pearl Parkway, BoulderFour rules, kept
What we will and will not do
- 01
Measure before recommending
No proposal leaves this office without a reading behind it. If we have not tested the house, we do not know what it needs, and saying so out loud costs us work we are happy to lose.
- 02
Smaller is usually right
A real Manual J comes in a size under the rule of thumb. A sealed house needs a smaller array. Our average project value has gone down every year since 2019, and that is deliberate.
- 03
One crew, one warranty
We do not subcontract installation, roofing or electrical. When something is wrong there is nobody to point at and nobody to wait for.
- 04
Publish the workings
Every model on this site shows its assumptions. Every proposal shows the arithmetic. If a number cannot survive being looked at, it should not be in front of a customer.
Pre-install walkthrough, SuperiorTen years, six decisions
How we got here
- 2016
Two people and a blower door
Ingrid and one technician, doing audits out of a van because nobody else in the county would sell an audit without a sales pitch attached.
- 2018
First arrays
Customers kept asking who should do their solar. We got tired of the answer and took the NABCEP exam.
- 2019
Stopped selling panels on their own
Too many oversized systems on leaky houses. From that year, every solar proposal required an audit first. Revenue dipped for eight months and then recovered.
- 2022
Mechanical team
Heat pumps brought in-house after two winters of watching subcontractors size off square footage.
- 2024
Roofing crew
Reroof and array in one mobilisation, because removing a five-year-old array to replace shingles underneath is an avoidable insult.
- 2026
Eleven people
One warehouse on Pearl Parkway, 595 Boulder County homes, and a service radius we can still drive in under an hour.
Eleven people, six of them here
Who turns up
The person who surveys your roof is the person who designs it, and the person who wrote your audit report is the person you can call about it.
Ingrid Solberg
Founder and design lead
Twelve years in PV design, NABCEP PV Installation Professional. Started GreenLeaf after one too many oversized arrays on leaky houses.
Desmond Whitcombe
Mechanical lead
HVAC excellence certified, runs every Manual J in-house. Will talk about extended capacity tables for longer than you want.
Nadia Ferreira
Building performance
BPI Building Analyst. Runs the blower door and writes the audit reports that tell people not to buy solar yet.
Calvin Mutinda
Master electrician
Colorado master electrician. Owns every load calculation, interconnection application and inspection on the schedule.
Brynn Halvorsen
Install foreman
Eight years on Front Range roofs. Sets the racking spec for the wind corridor jobs in Superior and Erie.
Tobias Reinhardt
Service and monitoring
Reads the monthly variance reports and makes the phone calls. Has found four failed bypass diodes this year alone.
Credentials and guarantees
- 01
NABCEP PV Installation Professional
On every crew, on every job. Not a company certificate hanging in an office.
- 02
BPI Building Analyst
Required for the rebate programmes we file on your behalf, and for the audit to mean anything.
- 03
Colorado master electrician
Licence EC.0102938 (sample). Every interconnection and load calculation signed in-house.
- 04
$2M general liability
Plus workers compensation on all eleven employees. Certificates sent with every contract.
- 05
10 year workmanship warranty
Roof penetrations, racking, wiring and labour. Separate from the manufacturer warranties.
- 06
Production guarantee
If first-year output falls more than 10 percent below model for reasons within our control, we make it right (sample terms).
Start with the test, not the quote
Three to four hours on site, a written report in five business days, and a recommendation that might well be to spend less than you planned.