Conalog

Market position

Conalog describes itself as the leading MLPE manufacturer and deployer in South Korea and as setting a standard for digital O&M in solar. It works with major Korean public energy and utility counterparties and holds innovation-product designation for public procurement.

The company positions itself as having full-stack, in-house capability across MLPE manufacturing, network infrastructure, AI and customer-facing services, and describes itself as Korea's leading MLPE manufacturer and deployer. It cites panel-level rather than string- or plant-level visibility, RSD fitted as standard on its MLPE, innovation-product status enabling public-sector direct contracts, retrofittability onto existing plants without inverter replacement, and cost claims of roughly 50% lower operating-management cost and about 95% lower diagnostic cost than on-site inspection.

Technology

The stack spans hardware, software and AI: in-house designed MLPE (microconverters in mass production, microinverter in preparation) with DC-DC and DC-AC power conversion; a high-performance mesh network enabling second-level, high-resolution data collection with 2,000 MLPE units per gateway at 10-second intervals; backend and infrastructure for large-scale time-series data; and machine-learning/LLM-based anomaly detection, loss analysis and automated diagnostic reporting. Grid-control research covers module-level curtailment and target output control responsive to grid conditions or remote commands, plus sensing for fire safety.

Go-to-market

Conalog sells through three packaged routes: MLPE hardware purchase aimed at EPC contractors, a subscription O&M offering aimed at asset managers, O&M firms and plant owners, and innovation-procurement direct contracts with public institutions. It has run corporate and public accelerator programs and partnerships (K-water partner startup, KOEN win-win venture, GS Challenge) and works with partners including Microsoft, SB Electric, GRANDSUN and GS, as well as Korean VPP operators.

Solar EPC/installation contractors, plant owners, O&M companies, asset managers investing in renewable assets, and public institutions. Listed partners and counterparties include K-water, Korea Western Power, Korea South-East Power, KEPCO KDN, the Korea Electrical Safety Corporation, the Seoul Metropolitan Government and the Ministry of Climate and Environment.

Geography

Headquartered in Seoul, South Korea, with domestic manufacturing of its MLPE. The company reports entering two overseas countries by 2025 and a cumulative five countries by 2026, and references overseas proof-of-concept deployments.

History

Conalog was incorporated in 2017, the same year it won the grand prize at a Seoul National University startup competition. In 2018 it was selected for TIPS R&D and the Korea Credit Guarantee Fund's First Penguin program. It raised seed funding and developed a solar power conversion device in 2021, joined K-water's 14th partner startup cohort and KOEN's win-win venture program in 2022, and in 2023 raised a bridge round, was designated an innovation product for public-institution direct contracting and joined GS Challenge cohort 3. A Pre-A round and 30+ site deployments followed in 2024, along with K-water direct-contract eligibility. In 2025 it raised a Series A, passed 400+ deployments, entered two overseas countries, began global collaboration with Microsoft and completed a five-site, 2.4MW K-water deployment. In 2026 it launched the Solarlog service brand and reported cumulative presence in five countries.

Risks & controversies

Performance claims such as 5-15% generation gains, roughly 50% O&M cost reduction, zero post-deployment fire incidents, and deployment, capacity and panel counts are self-reported by the company and not independently verified in the available material. Regulatory demand for rapid shutdown in Korea is described as prospective rather than in force.