Chemik targets lower solar installation costs

Solar installation economics could shift with new balance-of-system approaches globally. Chemik has outlined technologies aimed at cutting string inverter installation costs while tightening electrical fault detection on utility-scale PV projects.


IN Brief:

  • Chemik Group is targeting 25% to 30% business growth in 2026 after supplying 6 GW of products in 2025 and reaching 40 GW globally.
  • Its latest product push focuses on lower-cost string inverter installation and earlier detection of arc faults in PV strings.
  • The commercial relevance lies in balance-of-system optimisation, where labour, materials, commissioning quality, and operational safety are increasingly decisive as module prices mature.

Chemik Group has set out a new product push aimed at lowering photovoltaic installation costs and tightening protection against string-level electrical faults.

During Future Energy Summit Iberia 2026, Chemik Group said it was targeting 25% to 30% business growth in 2026 after supplying 6 GW of products last year and reaching 40 GW globally. The company’s latest emphasis is not on module efficiency but on the balance-of-system and installation layer, where labour, layout, protection, and commissioning choices increasingly shape project economics.

The headline number from the announcement was the suggestion that string inverter installation costs could be reduced by 55% to 60% through a system called TCS String. That distinction matters. The reduction relates to the string inverter installation package, not to the full capital cost of a solar plant. Even so, that part of the cost stack has become more important as developers look beyond module pricing and focus on installation productivity, repeatability, and field execution risk.

Chemik’s argument is that more industrialised installation methods and material changes can compress that part of the process sharply enough to change the economics on utility-scale projects. If borne out at scale, that kind of saving would matter most in markets where labour intensity, compressed delivery schedules, and higher financing costs are pushing EPC contractors to strip inefficiency out of every stage between delivery and energisation.

The second technology, Chekarc, addresses a different pressure point. Arc faults within PV strings are a persistent operational and safety concern, particularly in larger plants where fault localisation can be slow and where false positives from inverter-generated noise complicate monitoring. Chemik’s approach is to carry out project-specific electrical analysis so the system can distinguish between genuine arcs and the harmonics or electrical noise generated elsewhere in the installation, then isolate the affected section and alert operations teams.

That is commercially relevant because the solar market is no longer winning primarily on equipment novelty. It is increasingly being shaped by bankability, insurability, O&M performance, and the ability to keep projects online without adding avoidable field complexity. Protection systems that reduce nuisance alarms while speeding up fault response can therefore matter almost as much as a lower installed cost.

Chemik’s scale in Spain also gives the announcement weight. The group has said it holds a very large share of its domestic market, which makes Iberia a credible proving ground for installation and protection products before wider international rollout. The business growth target reflects that expansion logic, with new products being used as a route into more projects rather than as a stand-alone technology story.

For the solar sector, the sharper point is that next-stage cost reduction is becoming increasingly granular. The biggest gains are often no longer found in the panel itself, but in the installation method, the protection architecture, and the operational detail that determines whether a project performs as designed once the ribbon-cutting is over.


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