X0206 3 2018-08-07 0 0001605997 Northern Power Systems Corp. NPS 0001750363 OUSSOREN REINOUT C/O NORTHERN POWER SYSTEMS CORP 29 PITMAN ROAD BARRE VT 05641 0 1 0 0 Co-Chief Executive Officer Stock Option (Right to Buy) 1.59 2024-04-16 Common Shares 107649 D Stock Option (Right to Buy) 3.63 2024-04-16 Common Shares 3008 D Stock Option (Right to Buy) 2.97 2024-12-22 Common Shares 40000 D Stock Option (Right to Buy) 0.44 2025-08-19 Common Shares 65000 D Stock Option (Right to Buy) 0.186 2026-11-30 Common Shares 50000 D Subordinated Convertible Promissory Note 0.051 Common Shares 10200 D This option is fully vested and exercisable. One-third of this option vested on August 19, 2016, with the remainder vesting in eight equal quarterly installments thereafter. One-third of this option vested on November 30, 2017, with the remainder vesting in eight equal quarterly installments thereafter. On August 2, 2018, the Company issued a Subordinated Convertible Promissory Note (the "Notes") to certain investors including the Reporting Person. The aggregate dollar value of such Notes is $1,880,000. The Reporting Person's Note is for $20,000. The Investors may convert the Notes at any time into shares of the Company's common shares ("Shares"). Interest under the Notes accrues but shall not be due and payable until the maturity date. Under the Notes the outstanding principal balance and accrued interest under each Note shall be convertible, in whole or in part, at the option of the Holder at any time prior to the maturity date, into shares of common stock at a per share price of C$.0675 or US$.051 (the "Conversion Price"). Exhibit 24.1: Power of Attorney /s/ William St. Lawrence, as Attorney-in-Fact 2018-08-20