When the grid goes down, the battery takes over in milliseconds and the house keeps running.
The Canadian Solar EP Cube 2.0: 5 to 40 kWh, up to 11.5 kW continuous, 10-year warranty. Installed across Edmonton and Alberta by our own Red Seal–supervised crew, at one written price from a free assessment.
What we install
Three pieces of hardware, one system. The battery and its inverter are the Elite package; the generator makes it Ultimate.
Swipe for all three →
1 · Battery backup, optional
Slim towers on the garage wall. By day they soak up your surplus. By night they run the house, so you buy almost nothing from the grid. When the grid fails, they take over before a light can flicker.
2 · Hybrid inverter, battery packages
When you add a battery, one hybrid inverter runs the panels and the battery together. It decides, every second, whether the roof’s power goes to the house, into the battery, or to the grid, and it is what switches the house over in an outage.
3 · Standby generator, Ultimate package
For the outage that lasts days, not hours. When the battery runs low the generator starts itself, runs the house and recharges the battery, then shuts off. It runs on your natural gas line, so there is no fuel to haul. The battery still does the instant switch-over, so the lights stay on while the generator starts.
Authorized Canadian Solar / EP Cube dealer
Most stable lithium chemistry — far higher thermal-runaway threshold than NMC. Tested to UL 9540A.
Waterproof and dustproof. Operates from -10°C to 50°C. Indoor or outdoor.
5 kWh modules (EP Cube 2.0). Expand capacity anytime. Up to two units in parallel — 40 kWh residential cap per CEC Rule 64-918.
Capacity: 5–40 kWh per unit, in 5 kWh steps
Chemistry: LiFePO4 (Lithium Iron Phosphate)
Module size: 5 kWh per module
Warranty: 10 years / 6,000 cycles (≥80% retained capacity)
Continuous output: 11.5 kW (15–40 kWh); 8.0 kW (10 kWh); 3.0 kW (5 kWh)
Motor start: 185 A LRA (15–40 kWh)
Switchover: seamless via Smart Gateway
PV input: 6 MPPTs — no separate solar inverter needed
CEC efficiency: 96.5%
Warranty: 10 years
Location: attached or detached garage (most common), or a dedicated in-home battery room — 18-in side clearances, fire-rated door, fire alarm, exhaust fan
Mounting: Wall-mounted
Permitting: Included
Inspection: City inspection included
Installation warranty: 5 years on Essential (10 years on Premium)
EP Cube comes with a 10-year warranty — see all coverage → · Official EP Cube 2.0 datasheet (PDF, V1.2 — every spec on this page checked against it) →
Choose your package
Every package is the same LONGi panels and the same crew. Prices are per home, so the cards carry none: your written design shows each package’s price for your roof.
Swipe to compare the four packages →
For the homeowner focused on producing electricity and cutting grid purchases.
See this on my roof
For the homeowner who wants the install looked after for the life of the roof.
See this on my roof
For the home that should run on its own power most of the time, and keep running when the grid stops.
See this on my roof
For the home that has to stay on for as long as the outage lasts.
See this on my roofPremium isn’t a better install, it’s a longer promise: same panels, same crew, same standard. If a mount ever leaks, it stays ours to fix for the life of the roof. Elite adds a battery to either one, so the house runs on its own power most of the time and keeps running when the grid stops. Ultimate adds a standby generator, so it keeps running for as long as the outage lasts.
| Package | In one line | Includes |
|---|---|---|
| Essentials | The system, done properly. | Designed system, structural review, permits, installation, wire-mesh critter guard, monitoring, 5-year workmanship and roof-leak coverage |
| Premium | The promise that never expires. | Essentials + SolaTrim finish, 10-year workmanship, life-of-roof leak promise, whole-home visibility, expansion planning |
| Elite | Self-sufficient, most of the time. | Premium + EP Cube 2.0 battery, EP Cube hybrid inverter, 10-year battery warranty, optional second inverter |
| Ultimate | Power, no matter what. | Elite + Generac 18 kW standby generator with pad, gas and electrical connections, and permits |
Solar in depth is on the solar page; chargers on EV chargers; recent installs on projects; the two backup bundles, generator included, on whole-home backup. Ready to talk? Book a free consult.
What each package shows you
The APsystems app is included with every package. Premium and Elite add consumption monitoring, so you also see what the house uses and what goes to the grid.
| Package | What you see |
|---|---|
| Essentials | Production monitoring on every panel, in the APsystems EMA app, for the life of the system. |
| Premium | Production and consumption: what the house uses beside what the roof makes, and what crosses the meter. |
| Elite | Premium, plus the EP Cube app: charge level, solar in, home draw, your outage reserve and history. |
| Ultimate | Elite, plus the generator’s work in the battery’s charge level: it starts when the battery runs low and stops when it is full. |
Our solar was installed four years ago by a different company. When we asked them about adding battery backup, they said they couldn’t figure out the integration. Stellar got it done. The EP Cube ties into our existing solar and our Generac standby, and the system manages itself, solar by day, battery at night, generator as final backup. We don’t worry about outages anymore.
Merlin’s Sherwood Park system: solar, EP Cube battery, grid and Generac, fully automatic. Tap a card.
Grid drops, battery takes over. Grid returns, it hands back. You do nothing.
Switchover spec per the official EP Cube 2.0 datasheet: seamless. See it live at your free assessment.
Ranges drawn from Insurance Bureau of Canada water-damage averages and Alberta property-claim data, as compiled in our 2026 cost breakdown.
Four taps. We’ll size it.
This helps us estimate your electrical load.
Select all that apply. More loads = larger battery.
Think about the longest outage you'd want to ride through.
If yes, your battery can recharge from the sun during outages.
We'll confirm the right size, assess your electrical panel, and give you the exact all-in price for your home.
By submitting, you consent to Stellar Upgrades contacting you by phone, text or email about your inquiry. Unsubscribe anytime. Privacy Policy
No spam. A Stellar team member calls within 24 hours.
Tap what stays on. Pick a size. See exactly how long you last.
Written all-in quote · a real person calls within 24 h · no spam, ever. 550+ Alberta installs · BBB A+
We’ll call within 24 hours with your written all-in price. In a hurry? (780) 200-5265
Typical result: a winter “essentials” load in an Alberta home — fridge, deep freezer, furnace fan, sump pump, 10 LED lights, Wi-Fi, phones, and security cameras — averages roughly 530 W. At 90% usable capacity that runs approximately 8 hours on a 5 kWh EP Cube 2.0, 17 hours on a 10 kWh, 25 hours on a 15 kWh, and 34 hours on a 20 kWh. Pairing the battery with solar panels recharges it each day, extending backup through multi-day outages.
Worst-case math — every load running non-stop. Real homes do better; the Designer models that.
| Appliance | Draw | 5 kWh | 10 kWh | 15 kWh | 20 kWh |
|---|---|---|---|---|---|
| Continuous output | — | 3.0 kW | 8.0 kW | 11.5 kW | 11.5 kW |
| Fridge + Freezer | 150W | ~30 hrs | ~60 hrs | ~90 hrs | ~120 hrs |
| Furnace Fan | 500W | ~9 hrs | ~18 hrs | ~27 hrs | ~36 hrs |
| LED Lights (10) | 100W | ~45 hrs | ~90 hrs | ~135 hrs | ~180 hrs |
| Sump Pump | 800W | ~6 hrs | ~11 hrs | ~17 hrs | ~22 hrs |
| Essential Bundle* | ~1 kW | ~4.5 hrs | ~9 hrs | ~13 hrs | ~18 hrs |
| Appliance | Draw | 9.9 kWh | 13.3 kWh | 16.6 kWh | 19.9 kWh |
|---|---|---|---|---|---|
| Fridge + Freezer | 150W | ~59 hrs | ~80 hrs | ~100 hrs | ~119 hrs |
| Furnace Fan | 500W | ~18 hrs | ~24 hrs | ~30 hrs | ~36 hrs |
| LED Lights (10) | 100W | ~89 hrs | ~120 hrs | ~149 hrs | ~179 hrs |
| Sump Pump | 800W | ~11 hrs | ~15 hrs | ~19 hrs | ~22 hrs |
| Essential Bundle* | ~1 kW | ~9 hrs | ~12 hrs | ~15 hrs | ~18 hrs |
*Essential Bundle = fridge, freezer, furnace fan, 10 LED lights, sump pump, Wi-Fi, and phone charger drawing ~1 kW continuously — a worst-case simultaneous load. 90% usable capacity (≈95% LFP depth × ≈95% conversion). With normal cycling, real-world runtime is typically longer; solar recharges the battery daily.
EP Cube 2.0 is what we install today. Every 1.0 since 2021 stays fully supported.
Upgraded hybrid inverter (11.5 kW continuous), capacity flexibility from 5 kWh to 40 kWh per single unit, integrated Smart Gateway.
One all-in number, in writing, at your free assessment — we don’t post prices we can’t honour. Size yours in the Designer →
Get my EP Cube 2.0 quote →The proven platform that built our battery track record — hundreds of Stellar installs across Alberta since 2021. Now sold out at the supplier.
Sold out at the supplier. Every installed 1.0 stays fully supported — and can expand with a paired unit.
Own a 1.0? Get support →Alberta homes: 5–20 kWh per unit, 40 kWh cap across two units (CEC Rule 64-918); 25–40 kWh single-unit SKUs are commercial. Powerwall 3 vs EP Cube deep-dive →
We sell the EP Cube. Here’s the comparison anyway — including where the others win.
| EP Cube 2.0 | Tesla Powerwall 3 | Whole-home generator | |
|---|---|---|---|
| Capacity per unit | 5–40 kWh, in 5 kWh steps | 13.5 kWh fixed (27 kWh with two) | Unlimited — runs on fuel |
| Continuous output | 11.5 kW (15 kWh+ sizes) | 11.5 kW on-grid; up to 15.4 kW off-grid on an 80 A breaker | 10–26 kW typical |
| Motor-start surge | 185 A LRA | 185 A LRA | Engine-driven |
| Solar input | 6 MPPTs built in — no separate inverter | Integrated solar inverter | None |
| Switchover | Seamless, automatic | Seamless, automatic | 10–30 s startup blackout |
| Cold rating | -10°C to 50°C (attached-garage install) | -20°C to 50°C | Cold-weather kit needed for -30°C starts |
| Works with a generator | 2-wire start generator input built in | Via Backup Gateway 2 | Is the generator |
| Fuel & maintenance | None | None | Fuel + ~$200–450/yr servicing |
More off-grid headroom (15.4 kW vs 11.5 kW with proper breaker sizing), a wider -20°C cold rating, an IP67 flood-resistant enclosure, and the strongest brand recognition in the category. If you know you need exactly 13.5 or 27 kWh, it’s the simpler pick.
Capacity flexibility — start at 5 kWh and grow in 5 kWh steps to Alberta’s 40 kWh cap instead of committing to fixed 13.5 kWh jumps. It matches Powerwall 3 on on-grid output and motor-start surge, has 6 solar MPPTs built in, and is installed here by our own in-house Master Electrician crew.
Week-plus outages, if you keep fuel on hand and maintain it. The trade: a 10–30 second blackout at every outage, noise against Edmonton’s 50 dBA nighttime bylaw, and ongoing servicing. Already own one? The EP Cube’s generator input means it’s not either/or. Full 10-year math →
Weighing your battery options? Full Powerwall 3 vs EP Cube 2.0 deep-dive →
Everything included
Everything is confirmed at the free site visit. Anything extra is quoted in writing first; approve it, or cancel free.
Everything is confirmed at the free site visit. Anything extra is quoted in writing first — approve it, or cancel free.
EP Cube 2.0 system · full install by our Master Electrician–led crew · engineering & permits · city inspection · app setup & warranty registration
Panel capacity · breaker space · wire run length · floor space for 25–40 kWh dual-tower configs · detached-garage feasibility & temperature
Warranties
EP Cube 2.0, or 6,000 cycles, to at least 80% of original capacity.
Built into the EP Cube, from Canadian Solar.
10 years on Premium, Elite and Ultimate.
Generac limited warranty. Ultimate.
| What | Who | How long |
|---|---|---|
| EP Cube 2.0 battery | Canadian Solar | 10 years or 6,000 cycles, to at least 80% of original capacity |
| Built-in hybrid inverter | Canadian Solar | 10 years |
| Installation and electrical work | Stellar Upgrades | 5 years on Essentials; 10 years on Premium, Elite and Ultimate |
| Monitoring app | Canadian Solar | For the life of the system, at no charge |
| Generac 18 kW standby generator (Ultimate) | Generac | 5-year limited warranty |
How you’d like to invest
Pay cash and you pay the quoted price. A financed price includes the lender’s finance and transaction fees, and your written offer shows them before you sign.
50% deposit on signing, 50% when the system is commissioned and running. The quoted price, with no finance or transaction fees.
Through our financing partner, on approved credit. The lender pays us. A financed price includes the lender’s finance and transaction fees, shown in your written offer.
Usually the lowest rate. You pay us as a cash customer does, at the quoted price.
Your own line of credit, interest-only if you want it. Quoted price, paid as cash.
Clean Energy Improvement Program: repaid on your property taxes, where your municipality offers it and the battery is bundled with solar. We confirm it for your address.
Mortgage and line-of-credit customers pay us as cash customers do: 50% on signing, 50% at commissioning. How each option works →
How it happens
Four steps. Done in 4–6 weeks.
Inspect electrical panel, verify location, confirm final price. Free, no obligation.
We handle all drawings, permits, and utility paperwork.
Mount, wire, connect to panel, configure switchover. About one day.
City inspection, activation, app setup. You’re protected.
Who builds it
Stellar’s in-house team of certified electricians and roofers, on payroll, supervised by our Red Seal Master Electrician. We do not subcontract residential installations. Same team from quote to commissioning.
No subcontractors on residential installs. Prepaid contracting and direct selling licences from Service Alberta; CEIP qualified contractor.
Recent projects
The part of the job you see every day is the panel. Here is ours on an Edmonton home with solar and an EV charger, photographed after the inspection, beside two of the roofs it belongs to.
Swipe for more →
Every install here, with all of its photos, is on the projects page.
Same crew, same written quote, the right municipal permit — every time. Add to existing solar → · Who’s qualified? →
Charges from the sun by day. Runs the house at night. Already have solar? It integrates — and CEIP financing can cover the battery when bundled.
Learn about our solar packages →Asked straight, answered straight. Every question below is one a homeowner has asked us.
Refer a homeowner who installs with Stellar: $500 per battery, $100 per solar kW, $100 per EV charger — as cash, credit, or a gift to them.
Free assessment. Exact written price. No obligation. We check your electrical panel and where the battery would live, then put an all-in price in writing. If backup isn’t right for your home, we’ll tell you.
Prefer to talk now? Call (780) 200-5265, Monday to Friday 10 am to 8 pm, Saturday 10 am to 6 pm.
Got it
We’ll call or text you from (780) 200-5265 within 24 hours to set a time for your assessment. If you don’t hear from us, call us; we don’t want to miss you.
Prefer to pick a time now? Book a free video consult with an energy expert.
A free 30-minute Google Meet with one of our energy experts — your bill, your roof, your actual numbers. If it’s not the right fit for your home, we’ll tell you that too. No pressure, no chasing.
Book a free video consult →Stellar Upgrades at a glanceStellar Upgrades is a trade name of Right Wire Technologies Ltd., an electrical contractor at Unit 10, 6005 103A St NW, Edmonton, AB T6H 2J7 · (780) 200-5265 · info@stellarupgrades.ca. It installs residential solar panels, EP Cube battery backup, Level 2 EV chargers and permanent exterior lighting across the Edmonton region, central Alberta and the Calgary region. Installs are done by in-house electricians under a Master Electrician. Licences: Service Alberta prepaid contracting and direct selling (numbers available on request). CEIP qualified contractor and direct EP Cube dealer. Operating since 2018. Google rating 5.0 from 40 reviews. Hours: Monday to Friday 10 AM to 8 PM, Saturday 10 AM to 6 PM. Service areas.
