{"id":5811,"date":"2026-08-14T09:00:00","date_gmt":"2026-08-14T09:00:00","guid":{"rendered":"https:\/\/honcon-electric.com\/?p=5811"},"modified":"2026-08-05T06:01:08","modified_gmt":"2026-08-05T06:01:08","slug":"switchgear-cost-for-solar-power-plant","status":"publish","type":"post","link":"https:\/\/honcon-electric.com\/fr\/switchgear-cost-for-solar-power-plant\/","title":{"rendered":"Switchgear Cost for Solar Power Plant: 20kV MV Solution Guide"},"content":{"rendered":"
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Introduction<\/h2>

With the increasing development of renewable energy projects, medium voltage (MV) switchgear has become an essential part of solar power plant substations. It provides reliable power distribution, switching, protection, and monitoring functions to support the safe operation of renewable energy systems.<\/p>

The switchgear cost for solar power plants<\/strong> depends on various factors, including voltage level, switchgear type, protection requirements, project specifications, and manufacturing capability. Understanding these factors helps project owners and EPC contractors evaluate the overall investment of solar substation equipment and select a suitable MV switchgear solution.<\/p>

Recently, Haocheng Electric conducted a technical exchange with an overseas customer regarding a 40MW solar PV application in Afghanistan. The customer visited Haocheng Electric\u2019s factory to evaluate manufacturing capability and discuss the requirements for a 20kV MV switchgear solution.<\/p>

What Factors Affect Switchgear Cost for Solar Power Plants?<\/h2>

The cost of MV switchgear for solar applications is influenced by several technical and project-related factors.<\/p>

1. Voltage Level and Switchgear Type<\/h3>

Voltage level is one of the key factors affecting MV switchgear selection and cost. When evaluating solar power plant switchgear cost, the voltage class and insulation level are usually the first considerations during equipment selection.<\/p>

Solar power plant substations commonly use medium voltage switchgear classes such as 12kV, 24kV, and 36kV, depending on system voltage and project requirements.<\/p>

For 20kV power systems, 24kV-class switchgear is commonly selected to provide suitable insulation capability and reliable operation according to applicable standards. Medium voltage switchgear design, testing, and performance requirements are commonly referenced from international standards such as IEC 62271<\/a>.<\/p>

For the solar PV application under technical discussion, the customer required:<\/p>

Parameter<\/th>Sp\u00e9cification<\/th><\/tr><\/thead>
Type d\u2019appareillage de commutation<\/td>KYN28-24 Metal-clad Withdrawable Switchgear<\/td><\/tr>
Tension nominale<\/td>24kV<\/td><\/tr>
Courant nominal<\/td>630A (specified panels)<\/td><\/tr>
Application<\/td>20kV MV switchgear section for solar substation<\/td><\/tr><\/tbody><\/table><\/div><\/div>

The final switchgear configuration is determined based on detailed engineering requirements and project specifications.<\/p>

2. Configuration and Protection Requirements<\/h3>

The configuration of MV switchgear varies depending on each solar project.<\/p>

Factors that influence the switchgear arrangement include:<\/p>