
TRU Off Grid Commercial
Commercial solar, storage and site power
TRU Off Grid designs, builds and services solar, battery and backup generator systems for job sites and businesses across Ontario.
Illustrative film
Power for job sites and businesses
Most job sites still run a generator around the clock to power a small office. We flip that around: the battery runs the site, solar charges it, and the generator only starts to recharge it.
Every system is built by our own crew, with a licensed master electrician on staff, ESA-permitted electrical work, and container builds done at our Milton shop.

Option 1
Site Office C-Can
A complete off-grid office in a sea container: power system, workspace, heating and cooling in one unit, delivered ready to use.
- 20 to 40 ft insulated sea container with finished walls
- Mini-split heat pump for heating and cooling
- Sub-panel and 120 V receptacles for laptops, printer, fridge and chargers
- Built-in battery room, solar on the container, exterior generator inlet
- Layout and system size set for each site
Inside the Site Office C-Can
Walk through a site office

An office in a sea container
Site Office C-Can
An office in a sea container
An insulated 20 to 40 ft container with finished walls, delivered to the site ready to use.
Solar
Solar on the container
Panels on the container charge the battery and carry the office in daylight.
Comfort
Heating and cooling
A mini-split heat pump heats and cools the office, with 120 V receptacles for laptops, the printer, a fridge and chargers.
Power system
Built and tested in Milton
Batteries, inverters and controls are built and tested at our Milton shop before the container leaves.
Backup
The generator only recharges
An exterior inlet and automatic start bring the generator in when the battery runs low, then shut it off again.

Option 2
Power C-Can
A mobile electrical room that powers the office trailers you already have, and moves with the project.
- Spray-foam insulated container, climate controlled for the equipment
- Batteries, inverters and controls built and tested at our Milton shop
- One protected feeder out to each office trailer
- Generator inlet and automatic generator start
- Sized for 1 to 4 trailers, relocates between sites

Real result
Roughly 90% lower fuel cost
March to April: $300 to $390 of propane vs an estimated $3,170 to $4,700 of diesel
Option 3
Trailer and scale house retrofits
We install the system into your existing trailer or scale house: solar on the roof, the battery and inverter inside.
- Real result: an off-grid scale house on an aggregate site replaced a 12 kW diesel generator running 24/7
- Rooftop solar, a 14.3 kWh battery, a 6 kW inverter and a 10.5 kW propane backup generator
- March to April fuel: $300 to $390 of propane vs an estimated $3,170 to $4,700 of diesel

For businesses
Commercial solar + storage
Roof and ground-mount solar with battery storage for shops, farms, warehouses and commercial buildings, from small systems up to 180 kW.
- Grid-tie net metering or load displacement
- Battery backup for critical loads, from refrigeration to servers
- Remote and pole-mount solar for off-grid equipment
- Three-phase work and switchgear through TRU Electrical Services
Interactive walkthrough
See how a TRU site power system works
Scroll through how we build and run a solar and battery site office: the problem with 24/7 generators, how the battery runs the site, how the container is built in our shop, the Power C-Can, sizing, a real scale house result, rent or own, and service.
How it runs
The battery runs the site. The generator only recharges it.
01
Solar charges
Panels charge the battery and carry the load in daylight.
Rent or own
Two ways to run it
Rent
- Monthly program, from a 6-month construction term to an annual program
- Delivery, hookup, commissioning and operator training
- Monitoring, maintenance and support included
- We pick it up when the project ends
Own
- Buy the system as a company asset
- Move it from site to site as projects change
- Add batteries or inverters later without a redesign
- Built, commissioned and supported by the same TRU team
We have also built battery and solar power for asset tracking and disaster recovery, airline ground transport, forklifts, field engineering and testing, postal and courier fleets, conveyors, commercial scales, mining, and self-heating batteries for extreme cold.
Gallery
Site power we have built
Contact us
Tell us about your site
Send us your trailer count, a list of loads, the site location and your current fuel spend, and we will build a site-specific rent or own option.
- Licensed master electrician on our own crew
- We file the hydro, permit and rebate paperwork
- Installs inspected by ESA
- Authorized EG4, EP Cube 2.0 and EcoFlow installer
- 4.8 stars from 74 Google reviews
Jacob Collier
Solar, inverters and batteries · Call or text
- Solar + battery, call or text 647-914-9699
- Shop landline, calls only 905-462-6525
- 348 Bronte St S, Unit 21, Milton, ON L9T 5B6
- Monday to Friday, 9 am to 5 pm







