Solar design
Load analysis, yield modelling and engineering sized to your site and tariff.
ONGroup · Clean energy for industry
We design, supply, install and maintain solar and battery systems for industry, help arrange finance and train your team. You own the system and the savings.
01What we do
Seven disciplines under one roof, so nothing gets lost between design, build and care.
Load analysis, yield modelling and engineering sized to your site and tariff.
Tier-1 modules, inverters, batteries and mounting, delivered to site.
Certified installation, grid connection and commissioning.
Batteries carry midday sun into the evening and through outages.
Monitoring, cleaning and repairs that hold yield for 25+ years.
We work with you and your lenders so savings cover repayments.
Hands-on training so your team can run the system.
02A day with ON
Output climbs with the sun. The grid or generator still covers most of the morning load.
At midday solar covers the production line and the surplus charges the batteries.
As the sun sets, stored energy carries the evening shift instead of diesel.
Critical loads keep running through outages. Tomorrow, the cycle repeats.
03The model
No long power-purchase contracts. The plant is yours from day one; we design, deliver and maintain it, and hand over the know-how so your team can run it.
Site visit, bills and load profile, hour by hour.
System, storage, savings and funding in one proposal.
Supply, installation, grid connection and commissioning.
Training, monitoring and maintenance. The system is yours.
04Savings calculator
Indicative only: ~4.8 kWh/kWp/day yield, ~$650/kWp installed without storage, typical emission factors. A site survey gives the real numbers.
Ask for a site-specific proposal05Completed projects
Industrial · 3-phase · Kolonnawa, Sri Lanka
First of a roll-out across all Methuli Industry premises. Every unit generated is exported.
≈ 4,800 kWh per month
Commercial facility · Peliyagoda, Sri Lanka
Designed, supplied and commissioned by our team, with a payback of about 3.3 years.
≈ 2,400 kWh per month
Business premises · Nugegoda, Sri Lanka
Covers most of the lab’s daytime load and cuts its reliance on the grid.
≈ 1,800 kWh per month
06Scale
Same team, same standard, at every size.
Factory and warehouse roofs
Estates, plants and industrial land
Grid-connected projects in development
*Example: site using 80 MWh/month, 65% in daylight, replacing grid power.
07Emissions & carbon
With Vulnerable Planet we are developing indicative estimates of the emissions each project avoids, and exploring whether those savings could qualify for carbon credits.
ONStart a project
Send us a few details. We reply with next steps within two working days.