−90%
Winter solar harvest, in conventional rooftop systems. The panels aren’t the problem — the sun angle is.
Your Home, Winter HeatFrom last summer’ssun.
Geothermal capacity
28kWh/m³
Cold-snap endurance
21days @ −40°C
Winter heat independence
100%
Roof PV solar pitch
52°
System sectionSUN · ELECTRONICS · GEOTHERMAL
01 · HarvestPV Solar Panels
02 · ControlSolar-Mass OS
03 · StorageGeothermal Sand 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 — air heat pumps, lithium batteries, transported fossil fuels, the grid — all give up exactly where the cold starts. This is the core value of Solar-Mass: it heats homes when everything else struggles.
01 · Solar drop
02 · Air heat pumps
0off-grid COP
Air heat pumps cannot function without electrical grid power. Even cold-climate models provide limited COP based on the electrical power they draw.
03 · Storage gap
$10M+
A LiFePO4 system equivalent to our Geothermal Sand Battery would cost more than $10,000,000 to provide the same amount of heat.
04 · Rural hookup
$3–30K
A Manitoba rural New Service can cost between $3,000 and $30,000 before the first kWh is provided.
01 · THE ARCHITECTUREThree integrated systems,
Three integrated systems,
one control loop.
Three integrated technologies, providing one autonomous solution. Solar panels harvest, the Geothermal Sand Battery stores, and Solar-Mass ML decides — in real time — where every kWh should go.
01 · PowerTask-based
Task-based
PV solar panels.
Roof array pitched to charge the Geothermal Sand Battery through summer and fall. Wall array mounted vertical and flush — 90°, tight to the wall — to capture the low winter sun when the north needs it most.
02 · ManagementSolar-Mass ML.
Solar-Mass ML.
Real-time control.
Solar-Mass ML control software is based on real-time sensory data and predictive forecasting of external weather impact and internal demand. This maximizes energy production and storage to meet the demands of the home.
03 · Energy StorageThe Geothermal Sand Battery,
The Geothermal Sand Battery,
beside your home.
Heat is the highest energy demand in winter for any home. The Geothermal Sand Battery stores it, and hydronic in-floor heating distributes it year-round. Installed beside the house — as simple as a septic field — it can sit above ground or be buried below the frost line. Solar panels and a sodium-ion battery bank power computers and appliances.
SYSTEM SECTION · v0.5Sun, geothermal,
Sun, geothermal,
and a control loop.
Solar above, electronics at the controls, and the Geothermal Sand Battery beside the house. The roof is pitched at 52° — the ideal compromise for winter heat production and shedding snow. Heat moves through high-temperature PEX into the floor; data travels into Solar-Mass OS, where every decision happens.
PV Solar PanelsRoof & wall harvest52° / 90°
Solar-Mass OSSensors · ML · routingReal-time
Geothermal Sand BatteryBeside the home28 kWh/m³
Hot-water buffer reservoirBuffer · instant drawon-demand
WINTER PERFORMANCE · PROJECTED
21days
A 64 m³ Geothermal Sand Battery carries a 186 m² home through a 21-day cold snap at −40 °C — burning no fossil fuels or grid power.
Summer charge → winter draw · Hydronic delivery · Hot-water buffer reservoir · Cold-snap endurance mode
02 · WHY NOTHING ELSE FITSThe status quo
The status quo
fails where we start.
We’re not iterating on air heat pumps. We’re replacing the entire premise — combustion, grid, and the seasonal storage gap — with one integrated architecture.
Status quo
Air heat pumps, lithium,
propane, the grid.
- Air heat pumps become less efficient as temperature drops, drawing more grid power exactly when the grid is at peak capacity.
- LiFePO4 batteries are not financially scalable for large heat storage — equivalent capacity would cost over $10M.
- Propane & heating oil are fossil fuels: expensive, require transport and on-site storage, and are major GHG contributors.
- Rural grid New Service runs $3K–$30K up front and can take months to install.
4 systems. 4 failure modes. 1 winter.
Solar-Mass
One architecture,
year-round, all winter.
- PV solar panels optimized for low-angle winter sun, not summer peaks.
- Geothermal Sand Battery beside the home — seasonal storage, as simple as a septic field.
- Zero combustion, zero grid draw through the entire Manitoba winter.
- Cold-snap endurance: 21 days @ −40 °C in the modeled envelope.
1 system. Year-round. All winter.
Northern.
Autonomous.
Year-round.
Email
Phone
+1 (431) 557‑4845
Office
Winnipeg, MB · by appointment
Status
Pilot · 2026–27 · Q3 launch