There is a long list of 94 institutional holders of NPWR within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of NPWR by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-NPWR table below, the initial column indicates the name of each top institutional holder of NPWR, with a link to that fund's top holdings. The next columns indicate the amount of NPWR stock held by each of the institutional holders of NPWR, followed by the NPWR position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Share Andrew L.		$112,123	12/31/2023
NPWR	9,937,500	$100,369	12/31/2023
NPWR.WT	5,342,547	$11,754	12/31/2023
Baker Hughes Holdings LLC	7,907,072	$79,861	12/31/2023
NPWR	7,907,072	$79,861	12/31/2023
Greenlight Capital Inc.	2,992,110	$30,220	12/31/2023
NPWR	2,992,110	$30,220	12/31/2023
Kensico Capital Management Corp		$19,906	12/31/2023
NPWR	1,851,300	$18,698	12/31/2023
NPWR.WT	549,200	$1,208	12/31/2023
Jefferies Financial Group Inc.	1,653,005	$16,695	12/31/2023
NPWR	1,653,005	$16,695	12/31/2023
Vanguard Group Inc.	1,468,528	$14,832	12/31/2023
NPWR	1,468,528	$14,832	12/31/2023
G.F.W. Energy XII L.P.	1,000,000	$10,100	12/31/2023
NPWR	1,000,000	$10,100	12/31/2023
Cohen & Steers Inc.		$8,693	12/31/2023
NPWR	818,547	$8,267	12/31/2023
NPWR.WT	193,606	$426	12/31/2023
HITE Hedge Asset Management LLC	721,804	$7,290	12/31/2023
NPWR	721,804	$7,290	12/31/2023
Adage Capital Partners GP L.L.C.		$7,045	12/31/2023
NPWR	693,148	$7,001	12/31/2023
NPWR.WT	20,000	$44	12/31/2023
Rosenbaum Jay D.		$5,325	12/31/2023
NPWR	500,000	$5,050	12/31/2023
NPWR.WT	125,000	$275	12/31/2023
Macquarie Group Ltd.	492,080	$4,970	12/31/2023
NPWR	492,080	$4,970	12/31/2023
Khrom Capital Management LLC	402,096	$4,061	12/31/2023
NPWR	402,096	$4,061	12/31/2023
Zazove Associates LLC		$3,820	03/31/2024
NPWR.WT	1,258,513	$3,820	03/31/2024
BlackRock Inc.	362,751	$3,664	12/31/2023
NPWR	362,751	$3,664	12/31/2023
Geode Capital Management LLC	241,679	$2,442	12/31/2023
NPWR	241,679	$2,442	12/31/2023
Prelude Capital Management LLC	188,338	$1,902	12/31/2023
NPWR	188,338	$1,902	12/31/2023
Crawford Fund Management LLC	166,107	$1,678	12/31/2023
NPWR	166,107	$1,678	12/31/2023
Palo Duro Investment Partners LP	139,417	$1,408	12/31/2023
NPWR	139,417	$1,408	12/31/2023
Charles Schwab Investment Management Inc.	134,001	$1,353	12/31/2023
NPWR	134,001	$1,353	12/31/2023
Berylson Capital Partners LLC	129,000	$1,303	12/31/2023
NPWR	129,000	$1,303	12/31/2023
Wellington Management Group LLP	127,820	$1,291	12/31/2023
NPWR	127,820	$1,291	12/31/2023
Third Point LLC		$1,100	12/31/2023
NPWR.WT	500,000	$1,100	12/31/2023
Arosa Capital Management LP		$1,073	12/31/2023
NPWR.WT	106,249	$1,073	12/31/2023
Teilinger Capital Ltd.		$1,065	12/31/2023
NPWR	100,000	$1,010	12/31/2023
NPWR.WT	25,000	$55	12/31/2023
Shelton Capital Management	100,400	$1,014	12/31/2023
NPWR	100,400	$1,014	12/31/2023
State Street Corp	99,312	$1,003	12/31/2023
NPWR	99,312	$1,003	12/31/2023
Commonwealth Equity Services LLC	63,821	$727	03/31/2024
NPWR	63,821	$727	03/31/2024
CSS LLC IL		$696	12/31/2023
NPWR.WT	316,309	$696	12/31/2023
Raymond James Financial Services Advisors Inc.	58,072	$661	03/31/2024
NPWR	58,072	$661	03/31/2024
Northern Trust Corp	65,195	$658	12/31/2023
NPWR	65,195	$658	12/31/2023
Barclays PLC	62,747	$634	12/31/2023
NPWR	62,747	$634	12/31/2023
JPMorgan Chase & Co.	56,191	$568	12/31/2023
NPWR	56,191	$568	12/31/2023
Amitell Capital Pte Ltd	55,118	$557	12/31/2023
NPWR	55,118	$557	12/31/2023
Sea Otter Advisors LLC		$551	12/31/2023
NPWR.WT	250,328	$551	12/31/2023
Millennium Management LLC		$481	12/31/2023
Call	218,671	$481	12/31/2023
UBS Group AG		$475	12/31/2023
NPWR	46,419	$469	12/31/2023
NPWR.WT	2,796	$6	12/31/2023
Qube Research & Technologies Ltd	43,568	$440	12/31/2023
NPWR	43,568	$440	12/31/2023
Waldron Private Wealth LLC	39,714	$401	12/31/2023
NPWR	39,714	$401	12/31/2023
Jane Street Group LLC	37,778	$382	12/31/2023
NPWR	37,778	$382	12/31/2023
Morgan Stanley	32,867	$332	12/31/2023
NPWR	32,867	$332	12/31/2023
Cinctive Capital Management LP		$318	12/31/2023
NPWR.WT	144,450	$318	12/31/2023
Pekin Hardy Strauss Inc.	27,865	$317	03/31/2024
NPWR	27,865	$317	03/31/2024
Eagle Global Advisors LLC		$295	12/31/2023
NPWR.WT	134,000	$295	12/31/2023
Bank of America Corp DE	28,292	$286	12/31/2023
NPWR	28,292	$286	12/31/2023
Forest Avenue Capital Management LP		$275	12/31/2023
NPWR.WT	125,000	$275	12/31/2023
Hartree Partners LP		$268	03/31/2024
Call	92,500	$268	03/31/2024
Goldman Sachs Group Inc.	25,735	$260	12/31/2023
NPWR	25,735	$260	12/31/2023
Schonfeld Strategic Advisors LLC	24,512	$248	12/31/2023
NPWR	24,512	$248	12/31/2023
Susquehanna International Group LLP	21,612	$246	03/31/2024
NPWR	21,612	$246	03/31/2024