For government & public-sector facilities
You'll own this building for fifty years. Light it for the people inside.
Earthlight models the Human ROI of circadian lighting for public facilities — turning workforce health, alertness, and retention into the fiscal language capital planners, budget offices, and councils already use.
01 — The problem
Lowest-bid procurement writes the human cost out of the budget
Public projects are built to survive scrutiny, so anything without a number attached gets cut first — and lighting quality rarely has a number attached. The result is decades of flat, unchanging light over the employees who process permits, answer 911 calls, staff courtrooms, and keep facilities running around the clock. The costs are real; they just land in the operating budget, year after year, instead of the capital one.
Public employees
lose sleep, focus, and the will to stay.
Agencies
absorb the absenteeism, turnover, and service backlogs.
Taxpayers
fund the same building's hidden costs for decades.
02 — The Human ROI
Where the Human ROI shows up
Earthlight quantifies the levers that actually move a public-sector budget — so the case for good light survives procurement, value engineering, and the council meeting.
Recruitment and retention
Government competes for talent against private employers with better pay and better buildings. A workplace that visibly supports employee wellbeing is one of the few levers a facilities budget controls — and turnover in the public sector is slow and expensive to reverse.
Absenteeism and presenteeism
Disrupted sleep drives sick days and diminished on-the-job output. Across a workforce measured in hundreds or thousands, small per-employee losses become a line item worth modeling.
24/7 operations alertness
Dispatch centers, corrections, emergency operations, and public works run through the night. Circadian-supportive lighting supports the alertness those posts depend on — where a lapse is measured in more than money.
Service delivery and error rates
Cognitive throughput isn't abstract when it's permits processed, cases heard, and calls answered. Better-timed light supports the focus that public service metrics run on.
The long-hold advantage
Private owners discount benefits they won't be around to collect. Governments occupy their buildings for 30–50 years — nearly every dollar of Human ROI accrues to the same budget that paid for the lighting.
Defensible procurement
A quantified model turns 'premium lighting' from an easy cut into a documented investment — the kind of justification auditors, budget offices, and councils are built to accept.
03 — The science
Light is the strongest signal your workforce's clocks receive
The human circadian system calibrates to light — it governs sleep, alertness, mood, and cognitive throughput. Bright, blue-rich light during the day and warmer, dimmer light toward evening keep that system aligned; the flat, unchanging light in most public buildings does the opposite, for every shift, every day of a decades-long occupancy.
Earthlight grounds its models in this circadian science and the standards advancing it — including Fitwel, created by the CDC and GSA for exactly these buildings — then translates it into the fiscal terms public decisions actually run on.
04 — How it works
From light to line item
01
Walk the facility
We map how light moves through offices, service counters, courtrooms, and 24/7 posts across the full day — where biology is supported and where it's working against your people.
02
Model the Human ROI
We translate circadian impact into the fiscal language your capital planners and budget office use: retention, absenteeism, service throughput, and lifecycle cost over the full hold period.
03
Protect the spec
We give your design team and project managers the numbers to defend circadian lighting through procurement and value engineering — with documentation built for public review.
05 — Questions
Before you ask
Is Earthlight a lighting product?
No — Earthlight is decision-support software. We model and quantify the human ROI of circadian lighting so the right design survives budgeting. We work alongside your designers, engineers, and facilities team, not in place of them.
Can this survive a lowest-bid procurement process?
That's the point. A quantified lifecycle model reframes circadian lighting from a discretionary upgrade into a documented cost-avoidance measure — the kind of best-value justification public procurement frameworks are designed to accommodate.
Does the evidence actually hold up?
We build on established circadian science and recognized standards like Fitwel — created by the CDC and GSA — the WELL Building Standard, and the IES. The Review walks you through the assumptions and the model so you can see exactly how the numbers are built.
Who is this for?
Facility directors, capital planners, public works departments, and design teams across federal, state, and municipal buildings — offices, courthouses, dispatch centers, corrections, and other 24/7 public operations.
See the Human ROI for your facility.
A 20-minute review that turns circadian light into the fiscal numbers capital planners, budget offices, and councils use to decide.