The Pittsburgh Penguins had their best power-play percentage in a season in 2017-18, at 26.1 percent.

when did the penguins have their best power play percentage in a season

TEAM	PP%	SEASON	GP	W	L	T	OTL	PTS	PTS%	G	GA	PK%	S/GP	SA/GP
Pittsburgh Penguins	26.1	2017-18	82	47	29		6	100	.610	270	248	80.0	34.43	31.13
Pittsburgh Penguins	26.0	1995-96	82	49	29	4		102	.622	362	284	83.3	32.26	34.63
Pittsburgh Penguins	24.8	1981-82	80	31	36	13		75	.469	310	337	76.9	31.88	31.21
Pittsburgh Penguins	24.7	2012-13	48	36	12		0	72	.750	162	119	79.6	29.96	29.23
Pittsburgh Penguins	24.6	2018-19	82	44	26		12	100	.610	271	238	79.7	33.30	33.28
Pittsburgh Penguins	24.5	1988-89	80	40	33	7		87	.544	347	349	77.0	28.51	35.70
Pittsburgh Penguins	23.9	1992-93	84	56	21	7		119	.708	367	268	83.2	32.44	30.73
Pittsburgh Penguins	23.7	2020-21	56	37	16		3	77	.688	193	155	77.4	30.07	29.98
Pittsburgh Penguins	23.4	2013-14	82	51	24		7	109	.665	242	204	85.0	29.93	28.77
Pittsburgh Penguins	23.1	2016-17	82	50	21		11	111	.677	278	229	79.8	33.48	32.57
Pittsburgh Penguins	23.1	1980-81	80	30	37	13		73	.456	302	345	73.4	32.59	30.65
Pittsburgh Penguins	22.9	1990-91	80	41	33	6		88	.550	342	305	79.2	30.20	34.04
Pittsburgh Penguins	22.5	1985-86	80	34	38	8		76	.475	313	305	77.0	30.23	31.11
Pittsburgh Penguins	22.5	1982-83	80	18	53	9		45	.281	257	394	72.5	30.23	32.69
Pittsburgh Penguins	22.0	1987-88	80	36	35	9		81	.506	319	316	76.4	31.30	31.05
Pittsburgh Penguins	21.8	1996-97	82	38	36	8		84	.512	285	280	81.1	29.44	34.29
Pittsburgh Penguins	21.7	1991-92	80	39	32	9		87	.544	343	308	79.9	31.78	31.48
Pittsburgh Penguins	21.7	2022-23	82	40	31		11	91	.555	261	263	79.1	34.37	32.77
Pittsburgh Penguins	21.5	1978-79	80	36	31	13		85	.531	281	279	77.2	32.31	30.88
Pittsburgh Penguins	21.3	1989-90	80	32	40	8		72	.450	318	359	74.7	29.00	33.55
Pittsburgh Penguins	21.1	1977-78	80	25	37	18		68	.425	254	321	74.7	28.83	34.86
Pittsburgh Penguins	20.9	1983-84	80	16	58	6		38	.238	254	390	76.0	28.34	36.35
Pittsburgh Penguins	20.8	1986-87	80	30	38	12		72	.450	297	290	76.1	30.33	29.45
Pittsburgh Penguins	20.4	2007-08	82	47	27		8	102	.622	240	212	81.0	27.67	30.77
Pittsburgh Penguins	20.3	2006-07	82	47	24		11	105	.640	267	240	82.1	28.85	30.85