Engineered for stability in extreme temperature fluctuations and high-latitude PV installations.
Finland is rapidly becoming a pioneer in Northern European solar energy adoption. As the nation pushes toward its ambitious goal of carbon neutrality by 2035, the Finnish solar market is shifting from small-scale residential rooftops to massive industrial-scale PV farms. In regions like Ostrobothnia and Northern Savonia, large-scale solar arrays are being integrated with existing wind farms to create hybrid renewable energy hubs. This transition requires sophisticated Solar Array Protection Relays and PV String Monitoring Devices that can withstand the unique challenges of the Finnish climate.
Finnish winters drop below -30°C. Our monitoring devices utilize industrial-grade components designed to maintain accuracy and communication integrity in sub-zero environments, preventing brittle failure of electronic relays.
With high albedo from snow cover, many Finnish projects use bifacial panels. Our Agf-M series provides the high-resolution current monitoring necessary to track the additional energy gains from ground-reflected light.
Strict adherence to Fingrid (Finnish National Grid) standards is mandatory. Our protection relays ensure rapid fault isolation, protecting the local distribution network from DC injection or surges.
The industrial landscape in cities like Vantaa and Turku is increasingly seeing warehouse rooftops covered in PV arrays. For these commercial entities, ROI depends on minimizing downtime. By exporting high-quality protection relays from our specialized factory to Finland, we provide Finnish EPC (Engineering, Procurement, and Construction) companies with the tools to implement "Smart Operations & Maintenance" (O&M).
Foshan SDEV Charger Co., Ltd. is a trusted manufacturer of protective components for photovoltaic systems across the globe. Our experience of working in the electrical industry for more than 30 years allows us to create solar DC components that comply with the latest DC standards. Through our focus on solar DC protection design, production, and marketing, we can bring brand-building PV protection solutions.
With the inheritance of 30+ years of experience in the research and production of DC protection products, we are continuously dedicated to the EV charging field. In recent years, SDEV has attentively invested resources in research on EV-related products, successively manufacturing other types of products, thus reaping wide market popularity across the world.
Quality is the primary goal among each of our workshops since this leads to the best performance and safety for any Solar, Storage, and EV charging system. Our commitment to quality increased brand awareness for your company. To achieve our goal, our factory and products comply with UL, SAA, CB, CE, TUV, ISO, and RoHS standards.
The Finnish solar sector is witnessing a "Data-First" revolution. Remote power plants in Lapland or the Lakeland district cannot be manually inspected during heavy snowfall. Therefore, there is a surging demand for intelligent communication-enabled relays. Our devices use RS485 Modbus-RTU protocols, allowing Finnish utility operators to monitor real-time string voltage, current, and temperature from centralized control rooms in Helsinki.
Another major trend is the "Energy Self-Sufficiency" drive among Finnish paper and pulp mills. These industrial giants are deploying massive solar arrays to offset energy costs. For these facilities, a fault in the PV array could lead to catastrophic downtime. Our protection relays provide the "first line of defense," detecting ground faults, arc faults, and circuit overloads before they propagate to the main transformer.
Achieving our goals come from formulating new products based on the market demands through our in-house R&D team. Our efforts have led to our first UL508i listed patented DC switch within china and the DC-PV2 DC switch produced for the global market. With our cutting-edge PV protective products and EV chargers, we aim to create a long-term partnership with many renewables companies.
Explore our full range of PV string monitoring devices and array protection components.
Whether you are designing a 50MW plant in Northern Finland or an industrial rooftop in Helsinki, our expert team is ready to provide the localized technical support you need.
The solar array protection relay acts as the "brain" of the combiner box. In Finland, where daylight hours fluctuate drastically from 19 hours in summer to nearly zero in winter, the electrical load on solar strings undergoes extreme cycling. Our Agf series utilizes Hall Isolation technology with up to 3.5kv isolation. This is critical in the Finnish context where ground potential rises can occur due to lightning strikes on the rocky, poorly-conducting Finnish soil. By isolating the measurement circuits from the high-voltage DC bus, we ensure that sensitive monitoring electronics are not destroyed during atmospheric surges.
Furthermore, the high precision (Class 0.5 accuracy) of our voltage and current measurement devices allows Finnish grid operators to perform predictive maintenance. Small deviations in string performance can indicate snow shading, dust accumulation, or even early-stage PID (Potential Induced Degradation). In a market where labor costs for site visits are high, having the ability to pinpoint a fault to the exact string via a RS485 Modbus connection significantly reduces the LCOE (Levelized Cost of Energy) for Finnish solar investors.
We are proud to be leading exporters to Finland, ensuring that the Nordic renewable energy market has access to the same high-tier DC protection technology used in the world's largest solar deserts, but optimized for the frost and the midnight sun.
SDEV Charger
