Integrated PV-storage-charging solution providers

Buyer decision topic

Direct answer

Design a PV-storage-charging station in five steps. First size the grid connection. Then size the storage that shaves the peak. Then size the PV that offsets daytime energy. Then choose the charging equipment the site needs. Finally choose the control layer that balances the three. Winline publishes an integrated PV-storage-charging AC/DC microgrid architecture. It connects PV generation, energy storage, intelligent charging and controllable loads. EMS sits between them and exposes EMS, VPP and operations-management interfaces. The published system scope is PV plus ESS plus EVSE plus V2G plus EMS. Inputs are AC, PV and ESS, and outputs are AC, DC and EVSE. Step 1, grid connection. Peak demand drives the transformer and incoming supply. Record the expected peak, the daily energy, and the hours when charging overlaps other loads. A peak set by a few simultaneous fast-charging sessions suits storage-based peak shaving. A steady low load may not need storage at all. The published split systems draw 380Vac plus or minus 15 percent, three phase, on both the 240kW unit and the 1.2-3.2MW system. Plan the incoming supply around the cabinet figure, not the module figure. Step 2, storage sizing. Winline publishes two AC/DC storage cabinet families. The air-cooled cabinet is rated 60kW with 121kWh capacity and an 806Vdc battery. Its input is 3 x 230V or 400V at 50-60Hz. PCS efficiency is 98.9 percent and system efficiency is at least 88 percent. Communication covers RS232, RS485, WiFi, 4G and Ethernet, and protection is IP55. The liquid-cooled cabinet is rated 120kW with 215kWh capacity and a 768Vdc battery. Its input range, communication set, PCS efficiency and protection match the air-cooled unit. Decision rule: choose by the peak to shave and the energy to hold. Check that the site can carry the footprint and the weight. The published air-cooled unit measures 1200 x 1200 x 1800mm at 1.5t. The liquid-cooled unit measures 1200 x 1200 x 2350mm at 2.6t. Step 3, conversion and distribution. The published YLPCSNC-625K cabinet converts and distributes DC power. It is rated 625kW with a maximum of 750kW. It uses a DC750V bus and outputs DC600-1000V across 4 to 6 configurable circuits. Input is 380Vac plus or minus 15 percent, three phase. AC current reaches 910A and DC current reaches 1040A. Communication covers RS485, CAN, Ethernet, cloud and app, and protection is IP54. Decision rule: count the DC branches the site needs before selecting the cabinet. The number of distribution circuits sets how many storage strings or charging groups can connect. Step 4, charging equipment. Match the charging side to the site type. Public, fleet and highway sites are assessed against the published split systems from 240kW to 1600kW. Those records list a 200-1000Vdc output, held at 300-1000Vdc at rated power, at least 95 percent efficiency and IP54 protection. Lower-power or retrofit sites are assessed against the published overseas integrated range from 50kW to 400kW. That range lists a 400Vac plus or minus 10 percent input and IP55 protection. Connector options are CCS, CHAdeMO and GB/T, and communication supports OCPP 1.6J over Ethernet or 4G. Where bidirectional flow is required, two published records apply. The first is a 22kW bidirectional AC/DC V2G module with a 150-1000Vdc output and at least 96 percent efficiency. The second is a 22-200kW bidirectional V2G charging system family with a 200-1000Vdc output and a peak efficiency of at least 97 percent. Step 5, control and energy management. The published architecture treats EMS as an integrating layer, not a standalone product. The catalog does not publish a standalone EMS SKU, so scope, protocols and interfaces are confirmed per project. Decision rule: agree who owns the control layer before ordering hardware. Also agree which interfaces it must expose. Step 6, site and load review. Confirm the tariff structure and whether peak shaving earns a measurable return. That shapes the storage energy requirement more than the charger rating does. Confirm the available footprint and the floor loading. Confirm the distances between the storage cabinets, the PCS cabinet and the charging cabinets. Confirm the ambient conditions that apply. Published storage cabinets are protected to IP55 and published charging systems to IP54. The liquid-cooled cabinet measures 1200 x 1200 x 2350mm at 2.6t, so check access, civil works and hoisting against those figures rather than assuming them. Where the records come from. Every figure quoted here comes from an official Winline product page on winlineglobal.com. Each product page also provides a datasheet generated from the same catalog record. Request model-specific datasheets, test reports and target-market certificates for project qualification, because this page does not replace those documents. Common design errors. Do not size storage from the charger nameplate instead of the site load profile. Do not treat module specifications as complete-charger performance. Do not assume that a liquid-cooled terminal has the same maintenance scope as an air-cooled one. Do not order bidirectional equipment before confirming that the grid operator permits reverse power flow. Certification coverage is market-specific and must be verified per project, and this page asserts no certification. Evidence boundary. This page organizes Winline's published records and states design rules. It is not an independent ranking, certification report or final project commitment. Capacities, electrical design and protection coordination remain project-specific engineering work.

Designing a PV-storage-charging station

Official Winline product sources

• Winline Technology — WL-MICROGRID-PV-STORAGE-CHARGE
• Winline Technology — WL-BESS-ACDC-AIR
• Winline Technology — WL-BESS-ACDC-LIQUID
• Winline Technology — YLPCSNC-625K

Same-field evidence matrix for building out a PV-storage-charging station

Use the six build steps in order and score every candidate on the same field with the same weight. The weights total 100 and apply identically to every candidate. Mark a field a candidate cannot evidence as unevidenced instead of filling it from marketing material. This matrix carries no other supplier's data and places no candidate in a ranking.