Press Release

DBRS Morningstar Confirms Lower Mattagami Energy Limited Partnership at A (high) and R-1 (low), Stable Trends

Project Finance
June 05, 2020

DBRS Limited (DBRS Morningstar) confirmed Lower Mattagami Energy Limited Partnership’s (the Issuer or LMELP) Issuer Rating and Senior Secured Bonds (the Bonds) rating at A (high) and its Commercial Paper rating at R-1 (low). All trends remain Stable. The rating confirmations reflect the Issuer’s continuing robust performance in F2019. The Stable trends reflect DBRS Morningstar’s expectation for credit metrics to remain stable over the next 12 months under a cost-of-service (COS)-style contract. DBRS Morningstar believes that the operational and financial impact of the Coronavirus Disease (COVID-19) is limited.

LMELP and its guarantor Lower Mattagami Limited Partnership are single-purpose limited partnerships established by Ontario Power Generation Inc. (OPG; rated A (low) with a Stable trend by DBRS Morningstar) for redeveloping and operating four hydroelectric generating facilities totalling 924 megawatts (MW) on the Lower Mattagami River (the Project). Energy generated from the Project is sold under a 50-year Hydroelectric Energy Supply Agreement (HESA) to the Independent Electricity System Operator (IESO; rated A (high) with a Stable trend by DBRS Morningstar) until 2064.

For F2019 ended December 31, 2019, debt service coverage ratio (DSCR; based on deemed debt amortization) of 2.08 times (x) was consistent with the forecast 2.05x, driven by stable EBITDA and interest cost. The seven-tranche bullet Bonds of $1,595 million in total are well staggered to mature between 2021 and 2052, subject to refinancing. If the term of the refinanced debt is well within the initial HESA term, such refinancing risk is considered low because of the predictable remaining contractual cash flow. There is also a $400 million Commercial Paper program, fully backstopped by credit facilities of the same amount, to provide further liquidity support in an event of market disruption. If the term of the refinanced debt extends beyond the initial HESA term, the credit quality of such debt would likely be negatively affected by potential merchant exposure. It is currently estimated that approximately one-third ($600 million) of the original Bonds ($1,795 million) will remain outstanding in 2064 when the HESA expires. This type of refinancing risk, however, is partially mitigated by the ten-year HESA extension option.

The ratings are underpinned by (1) the COS-style HESA, which eliminates hydrology, electricity prices, and the majority of operating cost and capex risks; (2) the reliable and low-cost nature of the underlying hydro assets; and (3) OPG’s experience as the operator and primary sponsor. The Issuer Rating is on par with offtaker IESO’s rating because DBRS Morningstar considers the residual risk from the offtaker to be negligible. DBRS Morningstar expects the current ratings to remain stable for the next 12 months; however, a negative rating action on IESO, or a sustained and material deterioration of key credit or operating metrics, could trigger negative rating actions.

A description of how DBRS Morningstar considers ESG factors within the DBRS Morningstar analytical framework and its methodologies can be found at:

All figures are in Canadian dollars unless otherwise noted.

The principal methodologies are Rating Project Finance (August 21, 2019), DBRS Morningstar Criteria: Commercial Paper Liquidity Support for Nonbank Issuers (March 10, 2020), and DBRS Morningstar Criteria: Guarantees and Other Forms of Support (January 22, 2020), which can be found on under Methodologies & Criteria.

For more information regarding rating methodologies and Coronavirus Disease (COVID-19), please see the following DBRS Morningstar press release:

The related regulatory disclosures pursuant to the National Instrument 25-101 Designated Rating Organizations are hereby incorporated by reference and can be found by clicking on the link under Related Documents or by contacting us at [email protected].

The rated entity or its related entities did participate in the rating process for this rating action. DBRS Morningstar had access to the accounts and other relevant internal documents of the rated entity or its related entities in connection with this rating action.

Generally, the conditions that lead to the assignment of a Negative or Positive trend are resolved within a 12-month period. DBRS Morningstar trends and ratings are under regular surveillance.

For more information on this credit or on this industry, visit or contact us at [email protected].

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