Our solar PV upgrade and modification service in Yangon revives underperforming rooftop systems and adapts older installations to today’s tariffs, outage patterns, and safety expectations. From Downtown to Hlaing Thar Yar, Insein, Tamwe, and the Thilawa SEZ, we diagnose what’s holding your array back—mismatch losses, shading errors, aging inverters, corroded terminations—and implement targeted upgrades that lift yield, improve reliability, and make maintenance straightforward. Instead of replacing everything, we keep good components, refresh weak links, and document the entire system so it’s audit-ready and easier to operate.
The process starts with measurement, not guesswork. We verify open-circuit and short-circuit values per string, compare them with plate ratings and solar irradiance on the day, and isolate modules that cause disproportionate losses. Thermal imaging and IV-curve testing reveal cracked cells, bypass diode issues, and hotspots that erode output. Combiner boxes, MC4 connectors, and DC isolators are checked for heat marks or water ingress—common failure points on older rooftops. On the AC side, we log voltage and frequency stability at your site, validate earthing continuity, and confirm breaker sizes and discrimination so any future trip remains localized.
Re-stringing delivers some of the biggest gains. Early Yangon systems were often strung to chase high DC voltage, leaving inverters outside their ideal MPPT window for much of the day. We redesign strings to sit comfortably within tracker ranges through monsoon heat and cooler mornings, reduce mismatch from mixed module batches, and guard against cold-start over-voltage. Cable runs are recalculated for ampacity and voltage drop; brittle conduits and aged connectors are replaced with UV-resistant materials and torque-verified terminations. Where partial shading is unavoidable, we selectively apply optimizers only when the data shows a net benefit rather than adding complexity everywhere.
Inverter modernization is the heart of many retrofits. Current-generation units offer wider MPPT windows, stronger surge tolerance, and grid-support features that cut nuisance trips. If your property faces frequent evening outages, we map a hybrid path: a right-sized hybrid inverter with an LFP (lithium iron phosphate) battery and an essential-loads sub-board that keeps networking, refrigeration, lighting, and POS running while non-critical loads stay on utility. For grid-tied only sites, we tune self-consumption and, where required, set export limits and anti-islanding profiles aligned with local utility practice.
Safety upgrades turn an aging array into a dependable asset. We add or refresh surge protection on DC and AC sides, specify residual-current protection where appropriate, and verify equipotential bonding across metalwork, racks, and water lines. Labels are standardized from roof to distribution board so caretakers and inspectors can trace circuits quickly. Hardware exposed to rain and sun is swapped for stainless or hot-dip galvanized fasteners; flashing and sealants are renewed to protect the building envelope as carefully as the electrics. Inside, distribution boards are reorganized so breakers and isolation points are accessible, sensibly grouped, and clearly marked.
Documentation makes improvements durable. You receive an updated single-line diagram, as-built drawings, test sheets for insulation resistance, polarity, earth continuity, SPD checks, and any RCD trip results, plus a maintenance plan that sets safe cleaning intervals, torque checks, and a pre-monsoon thermal scan. Monitoring is restored or upgraded so you can track generation, consumption, and state-of-charge from a web or mobile dashboard. These records satisfy insurers, landlords, and auditors—and they slash troubleshooting time if a future fault appears.
Because expectations evolve, we align our recommendations with recognized low-voltage and PV practice while tracking domestic guidance. For official notices and policy updates relevant to engineering in Myanmar, the Government’s Ministry of Science and Technology maintains an authoritative portal at https://myanmar.gov.mm/ministry-of-science-and-technology. Anchoring upgrade choices to such sources reduces approval friction and keeps safety at the forefront without adding unnecessary red tape.
Financially, we aim for pragmatic improvement. Daytime-heavy users—offices, schools, hospitality—often see fast returns from better stringing and a modern inverter. Clinics, retail, and residences that suffer evening outages benefit more from a modest battery sized for essentials. Our proposals present options across budget tiers but never compromise on protection devices, earthing quality, or waterproofing. We also leave room for growth: spare breaker ways, clean conduits, and communication ports so future modules or batteries can be added without demolition.
The result is a quieter, safer, more productive PV system tailored to Yangon’s climate and your operating reality—an upgrade that respects what you already own while unlocking the performance you expected from solar in the first place.
