JOINT FILING AGREEMENT

Exhibit 1

JOINT FILING AGREEMENT

This will confirm the agreement by and among all the undersigned that the Schedule 13D filed on this date and any amendments thereto with respect to the beneficial ownership by the undersigned of the Common Shares, without par value, of CPFL Energia S.A. is being filed on behalf of each of the undersigned in accordance with Rule 13d-1(k). This agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Dated: February 1, 2017

STATE GRID CORPORATION OF CHINA
By:		/s/ Shu Yinbiao
		Name:		SHU YINBIAO
		Title:		CHAIRMAN
STATE GRID OVERSEAS INVESTMENT LIMITED
By:		/s/ Xx Xxxxxxx
		Name:		XX XXXXXXX
		Title:		LEGAL REPRESENTATIVE
STATE GRID OVERSEAS INVESTMENT (EUROPE) LIMITED
By:		/s/ Duan Guangming
		Name:		DUAN GUANGMING
		Title:		LEGAL REPRESENTATIVE
STATE GRID INTERNATIONAL DEVELOPMENT CO., LTD.
By:		/s/ Hu Yuhai
		Name:		HU YUHAI
		Title:		PRESIDENT & CEO
STATE GRID INTERNATIONAL DEVELOPMENT LIMITED
By:		/s/ Hu Yuhai
		Name:		HU YUHAI
		Title:		PRESIDENT & CEO
INTERNATIONAL GRID HOLDINGS LIMITED
By:		/s/ Xx Xxxxxx
		Name:		XX XXXXXX
		Title:		DIRECTOR

TOP VIEW GRID INVESTMENT LIMITED
By:		/s/ Xx Xxxxxx
		Name:		XX XXXXXX
		Title:		DIRECTOR
STATE GRID BRAZIL POWER PARTICIPAÇÕES LTDA.
By:		/s/ Qu Yang
		Name:		QU YANG
		Title:		CEO