Solar Diesel Hybrid Controllers
Coordinate solar, grid, and diesel automatically, and stop burning diesel when the sun is doing the work for free. GFE deploys AI-driven hybrid controllers that decide, moment to moment, which source should carry your load.
Three power sources, one decision every second
Facilities running solar, grid, and diesel together without a coordinating controller lose money in predictable ways: diesel running during peak solar hours, reverse power damaging generators, grid import happening in the most expensive tariff windows.
A PV-DG controller fixes this by continuously monitoring all three sources and the live load, then automatically deciding how much each source contributes, so the facility always uses the cheapest available power first, and generators are never put at risk.
What the controller does
Continuous source monitoring
Tracks solar generation, grid status, diesel generator state, and live site load every second, so dispatch decisions are made on what is actually happening, not a schedule.
Intelligent dispatch
Decides which source serves which load from configurable priority rules and tariff schedules, so the facility always draws the cheapest available power first.
Generator protection
Maintains minimum genset loading (typically 25–30% of rated load, per generator manufacturer specifications) and prevents reverse power, the failure mode that quietly damages diesel generators when solar pushes back into them.
Solar-first optimisation
Maximises solar utilisation before grid or diesel is called on at all, instead of running a generator through peak sun hours out of habit.
Two delivery platforms
NeoSync from NeoTAQ Systems (sole distributor) for AI-driven dispatch tied into the full NeoTAQ stack, or Elum Energy (distributor) for SCADA-grade multi-brand integration on larger sites. The controller also supports heavy fuel oil (HFO) generator sets alongside standard diesel.
What is confirmed today
Figures below are either tied to a specific, named deployment, or clearly labelled as general system capability, never presented as a guaranteed result for any other site.
- Approximately 10–30% total energy cost reduction at processing and manufacturing plants, using NeoSync across solar, grid, diesel, and industrial machinery load.
- Retrofit-compatible: works on an existing solar-plus-diesel setup, not just new builds.
- Integrates with major inverter and generator synchronisation brands.
- Improves site uptime during grid outages by keeping diesel and solar sources coordinated automatically, without manual switchover.
- Up to 60% reduction in diesel consumption achievable under optimal dispatch conditions, by minimising genset runtime during peak solar availability.
Where it fits
Anywhere grid supply is unstable or absent and diesel is currently running without coordination alongside solar.
- Industrial plants
- Textile mills
- Rice & grain processing
- Telecom towers
- Commercial buildings on diesel backup
Processing & Manufacturing Facility, Bahawalnagar
GFE deployed NeoSync across solar, grid, diesel, and the plant's industrial machinery load. Coordinating those sources delivered approximately a 10–30% reduction in the site's total energy cost. That figure belongs to this NeoSync deployment specifically. GFE does not present it as a universal result.
Frequently Asked Questions
What is a PV-DG controller?
A PV-DG (photovoltaic–diesel generator) controller manages how solar, grid, and diesel generator power work together at a facility, preventing generator damage, minimising diesel use, and maximising solar utilisation.
Does GFE use NeoSync or Elum Energy, and how is that decided?
GFE recommends the right platform during the site assessment, based on your existing equipment, site complexity, and reporting requirements. Both are deployed across GFE projects in Pakistan.
Is this for existing solar plants only, or new installs too?
Both. A hybrid controller can be retrofitted onto an existing solar and diesel setup, or designed in from the start on a new plant.
Does GFE provide this nationwide?
Yes. GFE is the sole distributor for NeoTAQ Systems and a distributor for Elum Energy in Pakistan, deploying hybrid controllers across the country.
Your site assessment is free.
Your quote arrives in 48 hours.
Tell us your site location and monthly consumption — GFE's engineers will have a preliminary sizing and cost estimate to you within two business days.