On May 17, State Grid Tianjin Maintenance Company and SPIC (Tianjin) Distributed Energy Co., Ltd. carried out party building joint construction and relay protection cognition training. The relevant party branches of both sides jointly implemented the initiative of "Striving to be 'Pioneers'", with the core of promoting the construction of a modern energy system centered on green electricity, and building a communication and exchange platform for grassroots party branches. The maintenance company fully leveraged its professional advantages in the secondary side of the power grid, conducted in-depth professional and technical exchanges with SPIC, and arranged Zhang Qinghua, the chief technician of relay protection at State Grid Tianjin Electric Power, to provide professional technical training. From knowledge, technology, management and other aspects, they jointly explored the whole process working mode of new energy grid connection, operation and maintenance. The training was highly praised by the participants, and both sides jointly constructed a "interactive and service-oriented" new energy grid-source guarantee working mechanism, discussing the impact of new energy on the power grid and their respective response strategies. State Grid Tianjin Maintenance Company will aim to serve the grid connection of clean energy, transform the joint force of party building into the tackling power to promote the green and low-carbon energy supply, and strive to be a pioneer in promoting the low-carbon transformation of clean energy.