COMMITMENTS AND CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Environmental Sites and Related Reserves

The number of environmental sites and related reserves for which remediation or long-term monitoring, preliminary site work or site assessment is being performed are as follows:



	As of March 31, 2019			As of December 31, 2018
	Number of Sites	Reserve (in millions)		Number of Sites	Reserve (in millions)
Eversource	59	$	64.8	60	$	64.7
CL&P	15	5.6		15	5.4
NSTAR Electric	15	10.5		16	10.9
PSNH	9	5.3		9	5.4

Summary of Exposure to Guaruantees and Indemnifications

The following table summarizes Eversource parent's exposure to guarantees and indemnifications of its subsidiaries to external parties, as of March 31, 2019:



Company	Description	Maximum Exposure (in millions)		Expiration Dates
On behalf of subsidiaries:
Eversource Investment LLC	Revolution Wind and South Fork Wind ⁽¹⁾	$	113.9	-
Various	Surety Bonds⁽²⁾	32.0		2019 - 2021
Rocky River Realty Company and Eversource Service	Lease Payments for Real Estate	7.3		2024
Bay State Wind LLC	Real Estate Purchase	2.5		2019

⁽¹⁾

Eversource parent issued a declining balance guaranty on behalf of its subsidiary, Eversource Investment LLC. Eversource parent will guarantee, as a primary obligor, the financial obligations, primarily all post-closing payment obligations of Eversource Investment LLC, under the Sale and Purchase Agreement and an Irrevocable Equity Commitment Letter with Ørsted. Eversource parent's obligations under the guaranty expire upon the full, final and indefeasible payment of the guaranteed obligations.


⁽²⁾	Surety bond expiration dates reflect termination dates, the majority of which will be renewed or extended. Certain surety bonds contain credit ratings triggers that would require Eversource parent to post collateral in the event that the unsecured debt credit ratings of Eversource parent are downgraded.