TRU OFF GRID
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Commercial Site Power

Battery-first power for job sites

Site offices, scale houses and job trailers that run on solar and batteries, with a backup generator that only starts when it is needed.

Built in Milton, ONRent or ownDelivered ready to run
Real TRU build
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About TRU Off Grid

Solar, batteries and backup power. Milton, Ontario, since 2020.

We design, build and service solar and battery systems for homes, cottages and commercial sites across Ontario, from 1 kW to 180 kW: net metering, hybrid, load displacement, off-grid and portable power.

  • Our own crew, with a licensed master electrician on staff and ESA-permitted, inspected electrical work
  • CSA-certified equipment: LiFePO4 batteries and inverters with 10-year warranties
  • Our own shop for container builds, and remote monitoring and support after delivery
  • One point of contact from the first site call through design, build, delivery and service
The TRU Off Grid team outside the Milton storefront
2020Established in Milton, ON
1 to 180 kWSystem range, residential to commercial
In-houseDesign, electrical, container builds, service
10-yearBattery and inverter warranties

348 Bronte St S, Unit 21, Milton, ON | truoffgrid.com

The problem

Most job sites run a generator 24 hours a day

Day and night, weekends included, whether anyone is in the office or not.

The load is small

A scale house office used just 15-17 kWh a day

Measured, March to April. That is a large engine idling for a load that averages well under 1 kW.

The cost

$19,000-28,100 a year in diesel

Estimated to power that one office 24/7 with a 12 kW diesel, before rental, deliveries and service.

Source: TRU scale house project. Diesel at $1.45-1.60/L.

0engine hours a year
The TRU approach

The battery runs the site.
The generator only recharges it.

Conventional generator

Main sourceGenerator
GeneratorRuns whenever power is needed
OvernightEngine stays on
FuelBurned all day on a light load
Service hoursAdd up 24/7
Another trailerBigger generator or a second unit

TRU hybrid

Main sourceBattery bank, charged by solar
GeneratorStarts only to recharge, then shuts off
OvernightQuiet battery power
FuelShort, efficient recharge cycles
Service hoursDrop with runtime
Another trailerAdd batteries and one inverter
How it runs

Automatic, every day

  1. 01

    Solar charges

    Panels charge the battery and carry the office in daylight.

  2. 02

    Battery mode

    Generator off. The office runs quietly on the battery, overnight too.

  3. 03

    Low battery

    At about 10%, the generator starts on its own.

  4. 04

    Recharge

    The generator carries the load and refills the battery.

  5. 05

    Charged

    At about 95%, the generator shuts off. The cycle repeats.

12:00 PM
50% BATTERY SITE OFFICE GEN OFF
Your options

Three ways to set it up

Site office C-Can with fold-out solar array

1Site Office C-Can

A complete off-grid office in a sea container. Power, workspace, heating and cooling in one unit.

Inverter on battery inside a power container

2Power C-Can

Batteries, inverters and controls in their own container, feeding the office trailers you already have.

Solar on an existing container beside a truck scale

3Retrofit

We install the system into your existing trailer or scale house. Solar on the roof, battery and inverter inside.

Custom, every timeContainer size, layout, battery, inverter, solar and generator are all sized to your load requirements and goals. These three are starting points, not packages.
Option 1

Site Office C-Can

A complete off-grid office, delivered ready to use. Container length, layout and system size are custom to each site.

  • 20 to 40 ft sea container, insulated, finished walls, epoxy floor
  • Mini-split heat pump for heating and cooling
  • 60 A sub-panel with 120 V receptacles throughout
  • LED lighting, man door, office and tool room split
  • Fold-out solar on the container, plus a 20/30/50 A generator inlet
Front elevation with solar array Mini-split on the container wall Office door open
Option 1 | Inside

Inside the site office C-Can

A typical split is about 80% office and 20% tool storage and battery room, set per customer.

Office room
Office room. Finished walls, carpet, window and mini-split.
Tool and storage room
Tool room. LED light, shelving, hooks, epoxy floor.
Sub-panel fed from the battery system
Sub-panel. Fed by the battery system, conduit to every circuit.
Receptacle beside the inverter
Built-in power. Receptacles on the walls, inverter and battery inside.
Site office C-Can | How it's built

Built in our shop, step by step

One example build. Every container is custom to the site's loads and goals.

  1. 01

    Container on the pad

    A 20 ft sea container is prepped at our Milton shop.

  2. 02

    Insulate and finish

    Spray foam, finished walls and floor.

  3. 03

    80/20 split

    One partition: office in front, battery room at the end.

  4. 04

    Office fit-out

    Man door and window on the side wall, mini-split, LED lights, desk. 80% of the floor.

  5. 05

    Battery room

    At the cargo-door end: inverter on the battery, sub-panel, all in conduit. The last 20%.

  6. 06

    Closed and shipped

    Sealed up and delivered to site ready to run.

  7. 07

    Solar folds out

    The rack lifts and tilts the panels out over the side.

  8. 08

    Backup and power on

    Generator sits under the array and plugs into the inlet. The office is live.

Office, about 80%Battery room, about 20%
Powered: solar, battery, backup generator
Option 2

Power C-Can: the complete battery room

A mobile electrical room that powers the trailers you already have and moves with the project.

Load center and inverter on battery
1Load center. One protected feeder out to each trailer.
Inverter mounted on a battery
2Inverter / charger. 12 kW, 120/240 V, mounted on the battery.
3Battery bank. 4 x 14.3 kWh LiFePO4 in this build.
57.2 kWhbattery in this build
12 kWinverter, 120/240 V
1 to 4trailers per power C-Can
Mobilemoves with the project

Real photos and video from a TRU power C-Can.

What goes inside

Four parts, sized to your loads

Battery bank

  • LiFePO4, 14.3 kWh modules
  • 6,000+ cycles
  • Heated for cold weather
  • 10-year warranty
  • Add modules as you grow

Inverter / charger

  • 6 to 12 kW per unit
  • 120/240 V output
  • Stack units for more power
  • WiFi remote monitoring
  • 10-year warranty

Solar array

  • 500 W bifacial panels
  • Fold-out tilt racking
  • Roof or ground mount
  • Charges the battery in daylight

Backup generator

  • Propane, gasoline or natural gas
  • Automatic start and stop
  • 120/240 V, 30 to 50 A
  • 5-year warranty

Every build is custom. Equipment and sizes are selected per site after a load review.

Scalable

One platform, sized to the site

SiteBattery storageInverterGenerator
Scale house1-2 batteries
14.3-28.6 kWh
6 kW
10.5 kW
1 trailer3-4 batteries, 12 x 60 ft
42.9-57.2 kWh
12 kW
~18 kW
2 trailers6-7 batteries
85.8-100.1 kWh
24 kW
~30 kW
3 trailers10 batteries
143 kWh
36 kW
~48 kW
4 trailers13-14 batteries
185.9-200.2 kWh
48 kW
~60 kW

Typical ranges only. Every system is custom-sized after a load review of your trailers, equipment and goals.

Solar beside the truck scale on an aggregate site
Proof | Retrofit case study

Off-grid scale house on an aggregate site

5 kW solar, 14.3 kWh battery, 6 kW inverter and a 10.5 kW propane backup replaced a 12 kW diesel that ran 24/7. Measured load: 15-17 kWh per day.

Fuel cost, March to April (61 days)
Diesel 24/7 (estimate)
$3,170-4,700
TRU hybrid (actual)
$300-390 propane
0less fuel cost, March to April
0 hrsgenerator time forecast, May to Sept
$16-27klower fuel cost per year, estimated

Diesel estimated for the same load at $1.45-1.60/L. Propane is the site's actual spend.

Proof | Recent build

Site office C-Can, start to finish

1

Racking frames on the container

2

Panels lifted onto the roof

3

Setting and squaring the top row

4

Top row complete

5

Finished array, front elevation

6

On site with the backup generator

7

Fold-out racking from underneath

Rent or own

Two ways to pay, priced for each site

Rent

Monthly program, no equipment purchase
  • Terms from a 6-month construction term to a 12-month annual program
  • Delivery, hookup, commissioning and operator training
  • Monitoring, maintenance and support included
  • Add batteries or inverter capacity as a monthly adder
  • We pick it up when the project ends

Own

Buy the system as a company asset
  • Own the container and equipment outright
  • Move it from site to site as projects change
  • Built, commissioned and supported by the same TRU team
  • Add batteries or inverters later without a redesign

Every trailer is custom. Pricing is set per site after a short load review of your loads and goals.

After delivery

What's included

Remote monitoring

Battery level, solar, load and generator activity, with alerts.

Technical support

Phone and remote troubleshooting during operating hours.

Preventative maintenance

Scheduled health checks, firmware updates and operation checks.

Generator management

Auto-start settings tuned to cut fuel use and needless cycling.

Priority service

Seasonal and annual program clients get priority scheduling.

Site changes

Load and charging settings updated as the project changes.

Getting started

From first call to power on site

1

Site call

Trailer count and size, heating and cooling, equipment, hours on site, and current fuel spend.

2

Load review

Where possible we log a representative trailer, winter data especially, then size the system.

3

Proposal

A site-specific rent or own option, compared against what your current setup costs.

4

Build and deliver

Built and tested at our Milton shop, delivered, connected, commissioned, and staff shown how it runs.

To start, send us: trailer count, a list of loads, the site location, and your current fuel spend.
The TRU Off Grid team outside the Milton storefront
TRU Off Grid team members at the Milton storefront

The TRU team at 348 Bronte St S, Milton

Why TRU Off Grid

One team from design to service

  • Based in Milton, ON since 2019, with our own shop for container builds
  • Battery storage, inverters and generator integration are our core business
  • One point of responsibility: battery, inverters, generator, controls and monitoring
  • The people who build your system are the people who answer the phone
TRU Off Grid
Next step

Let's look at
your site

Send us the trailer count, the loads and your current fuel spend. We will come back with a rent option and an own option.

Jacob CollierProject & Business Development Manager, TRU Off Gridjacob@truoffgrid.com | 647-914-9699truoffgrid.com | @truoffgrid | 348 Bronte St S, Unit 21, Milton, ON

Prepared by the TRU Off Grid team