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Jomsolar — Total Solar Solutions

Off-grid solar · Hybrid & battery backup · Thermal inspection

No grid? Life goes on.

Jomsolar designs off-grid and hybrid solar systems with battery storage for farms, homes and businesses — sized to the appliances you run and the hours you run them.

Already have solar? We inspect it too.

Find my systemCheck my existing solar
  • Off-grid packages from RM 13,990, installed
  • 200+ projects
  • No sunlight: the panels have stopped.
  • The battery takes over → inverter → your appliances.
  • Lights, fans and the fridge stay on — no grid needed.

Start here

What do you need to solve?

Already have solar?

Can you spot what needs checking?

Same roof, same moment. Drag the handle — or use the buttons — to compare the normal photo with the thermal image.

Aerial thermal image of an 18-module rooftop array; one module in the bottom row shows a small, bright hot area
Visible-light aerial photo of the same 18-module rooftop array; the affected module looks normal
Normal photoThermal image
Drag the handle to compare

Looks normal in the photo — but the thermal image shows a small, sharply defined warm spot here. Worth checking on site.

A thermal image shows where — not why. The cause is confirmed with an on-site check.

Example report layoutShows how findings are laid out — not a client report.
Image
Normal + thermal, same view
Location
Bottom row, 3rd module from left
Observation
Local warm spot; module looks normal in the photo
Recommendation
Check on site to confirm the cause

On-site inspection from RM 799 · report and travel quoted separately

Request an inspectionSee inspection options

Energy calculator

What do you want to run?

Choose your appliances and how long they run. You'll see your daily energy, a rough system size and which package could fit — no phone number needed.

Example: small farmhouse — change anything

  • Power settings

    Day + night is at most 24 h.

  • Power settings

    Day + night is at most 24 h.

  • Fridge: kWh per day from its energy label, split between day and night — not running power × 24 h.

    Power settings

    Day + night is at most 24 h.

  • Power settings

    Day + night is at most 24 h.

  • Power settings

    Day + night is at most 24 h.

  • Power settings

    An inverter aircon seldom draws its full power all night. Example values — check your model.

    Day + night is at most 24 h.

  • Power settings

    Day + night is at most 24 h.

Cloudy-day reserve

The reserve is extra energy on top of one normal night. Recharging the battery after a cloudy spell needs a proper design.

Your estimate

Planning estimate

Energy per day

4.6 kWh/day

Day 2.1Night 2.5

Battery (nominal)≥ 3.1 kWh
About 2.5 kWh of it reaches your appliances; the nominal size is larger because a battery is not fully emptied.
Solar≈ 1.6 kWp
≈ 3 × 650 W panels, counted by energy only — the wiring (strings, MPPT) is designed separately.
Inverter≥ 1.5 kW
Everything selected running at the same time (1,182 W), plus 25 % margin.

Motors or compressors selected (pump, fridge, aircon): their starting power must be checked against the real inverter.

Ready-made packageCandidate — needs checking

01 ESSENTIAL

Reference price RM 13,990, installed

Includes panels, inverter (2-year warranty), battery, delivery and installation. Final system and price confirmed after a site visit.

7 larger packages also cover it (02–08: RM 14,980 – RM 33,300).

Checked against this package
  • Solar energy
  • Battery
  • Inverter power
  • Package's daily-use figure
  • Aircon type
Ask Jomsolar to verify this setup
Send on WhatsApp
Or browse the 8 packages by aircon use
Assumptions and formulas
  • Solar output: 3.2 kWh per kWp per day (Jomsolar's planning figure for Selangor), treated here as panel output before inverter and battery losses.
  • Daytime use: PV → inverter at 95 %. Night use: charging 95 % × battery-to-socket 90 % (inverter included, counted once).
  • Battery: (night energy + reserve) ÷ (90 % usable × 90 %). Nominal and usable capacity are shown separately.
  • Inverter: all selected appliances at once × 1.25. Starting power is never estimated.
  • Packages: offered only if solar, battery, inverter, the brochure's daily-use figure and the aircon type all fit.
  • No savings, payback or year-round independence is calculated.

Real projects

What we have built and checked

See all projects

Off-grid · Raub, Pahang

Solar for a hillside farm building

The difficulty
A farm building in a hillside valley that has to make its own power.
What we chose and why
An off-grid solar system on the building's own metal roof — the panels need no extra land.
View the case: Solar for a hillside farm building
Aerial thermal image of an 18-module rooftop array; one module in the bottom row shows a small, bright hot area

Thermal inspection · Jenjarom, Selangor

Aerial thermal inspection of a shop-lot rooftop array

The difficulty
Rows of panels on a shop-lot roof that are hard to check one by one.
What we chose and why
One drone flight took thermal and normal photos of the whole array, compared panel by panel.
Result
One panel that looked normal had a small, sharply defined hot spot.

Flagged for an on-site check. The thermal image shows where — the cause is confirmed on site.

View the case: Aerial thermal inspection of a shop-lot rooftop array
Aerial view of a solar array on the roof of a beachside building at an island camp on Pulau Lang Tengah

Off-grid · Pulau Lang Tengah, Terengganu

Rooftop solar for an island camp

The difficulty
An island camp: power has to be made on site, and transport and later servicing have to be planned.
What we chose and why
Off-grid solar on the roof of a beachside building — the camp has to make its own power on the island.
View the case: Rooftop solar for an island camp

More completed systems

  • 23 kWpTanjong Karang, Selangor · Off-grid
  • 13.2 kWpSetia Alam, Selangor · Hybrid & storage
  • 2 × 4.8 kWp · 10 kWhKuala Pilah, Negeri Sembilan · Off-grid

How it works

How solar powers your home

Scroll to see the panels make power, the battery store it, and a thermal scan check the system.

01 · GenerateSolar panels sized from your appliance list and hours of use.

02 · StoreThe battery keeps the fridge, lights and fans running after sunset.

03 · InspectAerial thermal imaging finds panels that run hotter than the rest.

Process

What happens next

  1. 01

    Message us

    Tell us the place and what you need — photos help.

  2. 02

    We understand your needs

    Which appliances, or details of your existing system.

  3. 03

    Site visit or inspection

    On a day that suits you.

  4. 04

    Quote or report

    A written quote, or an inspection report with images.

FAQ

Common questions

All questions
What is the difference between off-grid and hybrid solar?
An off-grid system runs without a utility connection: solar panels charge a battery bank, and an inverter supplies your appliances. A generator is often added as backup for long cloudy spells. A hybrid system also has solar and a battery, but works alongside the grid or a generator — the battery covers outages or selected loads, and the other source tops up when needed.
Do you have packages and prices?
Yes. There are eight off-grid packages from RM 13,990, each including panels, inverter, battery, delivery and installation — see the off-grid solar page. They are a starting point: we recalculate from your own appliance list, and the final system and price are confirmed after a site visit. Hybrid systems are quoted per site. Thermal inspections start from RM 799 for systems of 1–10 kWp (report and travel charged separately).
How much does a thermal inspection cost?
The on-site inspection is priced by system size: RM 799 for systems of 1–10 kWp, and RM 1,500 for systems above 10 kWp up to 20 kWp. Larger systems are quoted on request. The written report and travel are charged separately, and we quote the total before scheduling. Inspections are currently available in Selangor, Kuala Lumpur and Negeri Sembilan.

Contact

Tell us your situation on WhatsApp

Send a message with the place and what you need — photos of the site or equipment help.

WhatsApp usOr send an enquiry form
Phone
012-277 6383
Email
info@jomsolar.com
Office
No. 52, Jalan 1/3, Taman Seri Jaromas, 42600 Jenjarom, Selangor, MalaysiaMonday – Friday, 10:00 am – 5:30 pm
WhatsApp usCall 012-277 6383