The Anaheim Ducks have the worst power-play percentage by a team in a season, at 8.9 percent in 2020-21.

worst single season power play percentage of all-time

TEAM	PP%	SEASON	GP	W	L	T	OTL	PTS	PTS%	G	GA	PK%	S/GP	SA/GP
Anaheim Ducks	8.9	2020-21	56	17	30		9	43	.384	124	177	79.9	26.79	30.57
Tampa Bay Lightning	9.3	1997-98	82	17	55	10		44	.268	151	269	82.4	25.61	28.99
Minnesota Wild	9.6	2000-01	82	25	39	13	5	68	.415	168	210	84.7	24.63	28.13
Florida Panthers	10.0	2013-14	82	29	45		8	66	.402	188	262	76.0	29.89	31.11
Buffalo Sabres	10.5	1999-00	82	35	32	11	4	85	.518	213	204	85.0	27.17	26.93
Carolina Hurricanes	10.7	2003-04	82	28	34	14	6	76	.463	172	209	81.6	29.20	26.22
Carolina Hurricanes	11.0	1998-99	82	34	30	18		86	.524	210	202	85.3	26.12	29.26
Mighty Ducks of Anaheim	11.4	1994-95	48	16	27	5		37	.385	125	164	75.6	28.04	33.04
Detroit Red Wings	11.4	2020-21	56	19	27		10	48	.429	125	168	78.7	27.29	31.89
Toronto Maple Leafs	11.4	1997-98	82	30	43	9		69	.421	194	237	86.6	27.71	28.68
Mighty Ducks of Anaheim	11.5	2001-02	82	29	42	8	3	69	.421	175	198	86.1	26.12	27.48
Mighty Ducks of Anaheim	11.7	1997-98	82	26	43	13		65	.396	205	261	81.8	26.63	30.39
Chicago Blackhawks	11.8	2006-07	82	31	42		9	71	.433	195	251	82.6	26.84	29.37
San Jose Sharks	11.8	1994-95	48	19	25	4		42	.438	129	161	81.3	24.00	31.60
New Jersey Devils	11.9	2002-03	82	46	20	10	6	108	.659	216	166	87.9	31.72	23.57
Phoenix Coyotes	11.9	1999-00	82	39	31	8	4	90	.549	232	228	85.9	26.99	28.46
Phoenix Coyotes	12.0	1998-99	82	39	31	12		90	.549	205	197	87.1	29.24	27.43
St. Louis Blues	12.1	2006-07	82	34	35		13	81	.494	208	248	80.0	26.85	28.89
Calgary Flames	12.1	1997-98	82	26	41	15		67	.409	217	252	84.0	27.68	27.76
Calgary Flames	12.1	2002-03	82	29	36	13	4	75	.457	186	228	83.3	28.55	27.10
Atlanta Thrashers	12.1	2001-02	82	19	47	11	5	54	.329	187	288	81.8	24.20	35.50
Philadelphia Flyers	12.2	2023-24	82	38	33		11	87	.530	231	258	83.4	33.02	27.13
Chicago Blackhawks	12.2	2005-06	82	26	43		13	65	.396	209	279	83.9	30.24	29.48
Ottawa Senators	12.3	1995-96	82	18	59	5		41	.250	191	291	77.9	26.88	30.54
Nashville Predators	12.3	1998-99	82	28	47	7		63	.384	190	261	79.0	27.06	33.04