−90%
Winter solar harvest, in conventional rooftop systems. The panels aren’t the problem — the sun angle is.
Your home, heatedby last summer’ssun.
Sand capacity
28kWh/m³
Cold-snap endurance
21days @ −40°C
Winter grid draw
0%
Roof / wall PV pitch
50° / 70°
System sectionSUN · ELECTRONICS · SAND
01 · HarvestBifacial PV
02 · ControlSolar Mass OS
03 · StorageSand Battery
00 · THE NORTHERN REALITYThe grid was never designed
The grid was never designed
for 40 below.
Winter is when the north needs the most energy and gets the least sun. Existing systems — heat pumps, lithium, propane, the grid — all give up exactly where the cold starts. Solar Mass solves for that gap, on purpose.
01 · Solar drop
02 · Heat pumps
−15°C
The temperature at which most cold-climate heat pumps begin to lose useful COP. It gets colder than that here.
03 · Storage gap
0seasons
Lithium can’t hold heat at seasonal scale. We charge in July and discharge in January.
04 · Rural hookup
$3–30K
What a new rural grid connection costs — before the first kWh of unreliable, outage-prone power.
01 · THE ARCHITECTUREThree integrated systems,
Three integrated systems,
one control loop.
Not a product, an architecture. The roof harvests, the foundation stores, the software decides — every minute, in real time, where each kWh should go.
01 · HarvestWinter-centric
Winter-centric
bifacial PV.
Roof panels at 50° for fall recharge of the sand battery. Wall-mounted panels at 70° for low winter sun. Both faces of every panel earning — ground-bounce, snow-bounce, cladding-bounce.
- Pitch
- 50° roof / 70° wall
- Tech
- Bifacial, patent-pending mount
- Aim
- Winter watts, not summer peaks
02 · ControlSolar Mass OS.
Solar Mass OS.
Sensor-dense ML.
A control loop that reads dozens of sensors and predicts heat + power demand minute-by-minute. It decides — live — what goes to the sand, the tank, the lithium buffer, or the load.
- Cadence
- 1-min decisions, real-time
- Routes
- PV → heat · battery · load
- Failsafe
- Cold-snap endurance mode
03 · StorageThe Sand Battery,
The Sand Battery,
in your foundation.
A fully-insulated thermal mass beneath the house. Hydronic loops charge it in summer, discharge it through in-floor heat all winter. An integrated hot-water reservoir gives instant heat on demand.
- Capacity
- 28 kWh/m³ effective
- Form
- Replaces standard foundation
- Lifetime
- Building-grade, decades
SYSTEM SECTION · v0.4Sand, sun,
Sand, sun,
and a control loop.
Read the section view like a soil profile. Solar above, electronics on the surface, the thermal mass beneath. Heat travels up the riser into the floor; data travels into Solar Mass OS, where every decision happens.
Bifacial PVRoof & wall harvest50° / 70°
Solar Mass OSSensors · ML · routing1-min cadence
Sand BatteryFoundation thermal mass28 kWh/m³
Hot-water reservoirIntegrated, instant drawon-demand
WINTER PERFORMANCE · PROJECTED
21days
A 64 m³ sand battery carries a 186 m² home through a 21-day cold snap at −40 °C — with zero grid draw.
Summer charge → winter draw · Hydronic delivery · Integrated hot-water reservoir · Cold-snap endurance mode
02 · WHY NOTHING ELSE FITSThe status quo
The status quo
fails where we start.
We’re not iterating on heat pumps. We’re replacing the entire premise — combustion, grid, and seasonal storage gap — with one foundation-integrated architecture.
Status quo
Heat pumps, lithium,
propane, the grid.
- Heat pumps lose useful COP below −15 °C, exactly when load peaks.
- Lithium can’t hold seasonal-scale heat — storage in days, not months.
- Propane & oil mean transport, cost volatility, and combustion at home.
- Rural grid hookup runs $3K–$30K up front, then outage exposure.
- Code retrofit stacks subsidies on a stack of incompatible systems.
5 systems. 5 failure modes. 1 winter.
Solar Mass
One architecture,
all winter.
- Bifacial PV optimized for low-angle winter sun, not summer peaks.
- Sand battery integrated into the foundation — seasonal storage as structure.
- Zero combustion, zero grid draw through a Manitoba January.
- Solar Mass OS routes every kWh, minute by minute, predictively.
- Cold-snap endurance: 21 days @ −40 °C in the modeled envelope.
1 system. 1 control loop. Year-round.
03 · WHO WE SHIP TOBuilt for new builds,
Built for new builds,
retrofits, and the system in between.
Solar Mass sells hardware, software, and a control contract. Every audience gets a different door into the same architecture.
Your winter bill, zero.
You don’t see the sand battery; you feel it — warm floors in January, a hot shower at 6 a.m., no grid hookup fees, no propane truck, no thermostat anxiety on a -38 night.
- ComfortHydronic in-floor heat all winter, instant hot water on demand.
- Bills$0 winter electricity bill in the modeled envelope.
- Resilience21 days of cold-snap endurance with zero grid draw.
- Service$50/mo monitoring contract covers lifetime parts replacement.
Foundation-integrated thermal mass.
Solar Mass replaces the standard foundation with an insulated, hydronic-loop-encapsulated sand mass — sized to the building’s BTU envelope. You build the foundation; we install the PV array, hydronic components, sensors, and OS.
- Capacity28 kWh/m³ effective; sized per BTU envelope and winter load.
- Roof50° south pitch (off-center ridge) for fall sand-battery charging.
- Wall70° south wall mount for low-angle winter PV.
- InterfaceBuilder owns foundation; Solar Mass owns PV + hydronic + controls.
District heat,
no combustion.
Scaled up, the sand battery is district-scale thermal storage. Municipal-scale Solar Mass installations replace propane and oil heating for remote and northern communities, with no combustion and no grid dependency.
- CarbonZero on-site combustion. No propane or fuel oil deliveries.
- ResilienceOff-grid by design — immune to transmission outages.
- CapexOne-time install replaces decades of fuel logistics.
- FormatCluster, neighborhood, or district scales.
Hardware · control
· royalties.
Three revenue lines, three margin profiles. Hardware at install. Monitoring as recurring SaaS. Royalties as patent + software licensing flows downstream of the Canadian core.
- Hardware$30K per house at install · 30% margin
- Monitoring$600 / house / year recurring · 70% margin
- RoyaltiesPatent + software licensing, outside Canada · 90% margin
- MarketCanada first; northern-climate EU + northern US follow.
04 · PILOT INSTALLFirst house,
First house,
Winnipeg, this summer.
We pour the foundation in June. The PV array goes up in August. By the cold-snap window in January 2027, we’re measuring real kWh against a modeled −40 °C envelope.
Brand & design system shipped
Colors, type, voice, technical deliverables — live.
ShippedSite selection · Winnipeg, MB
186 m² rural build · −40 °C historical envelope.
ShippedFoundation pour + sand battery
64 m³ thermal mass · insulated · hydronic loops.
In progressPV array · bifacial
50° roof + 70° south wall · patent-pending mount.
Aug 2026Solar Mass OS · sensor commissioning
Live monitoring · ML training · routing baseline.
Sep 2026Cold-snap window
Live data · 21-day envelope test · published results.
Jan 2027
Northern. Autonomous.
Year-round.
Email
Phone
+1 (431) 557‑4845
Office
Winnipeg, MB · by appointment
Status
Pilot · 2026–27 · Q3 launch