The New Jersey Devils had their best power-play percentage in a season in 2000-01, at 22.9 percent.

when did the devils 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
New Jersey Devils	22.9	2000-01	82	48	19	12	3	111	.677	295	195	84.7	31.59	24.68
Colorado Rockies	22.6	1977-78	80	19	40	21		59	.369	257	305	77.6	30.04	31.64
Colorado Rockies	22.5	1978-79	80	15	53	12		42	.263	210	331	70.6	27.34	30.96
New Jersey Devils	22.4	2023-24	82	38	39		5	81	.494	264	281	80.7	30.68	30.00
New Jersey Devils	21.9	2022-23	82	52	22		8	112	.683	289	222	82.6	34.40	28.23
New Jersey Devils	21.9	1986-87	80	29	45	6		64	.400	293	368	73.2	29.46	33.64
New Jersey Devils	21.5	1982-83	80	17	49	14		48	.300	230	338	73.4	25.69	32.09
New Jersey Devils	21.4	2017-18	82	44	29		9	97	.591	243	240	81.8	31.70	31.90
Colorado Rockies	21.1	1980-81	80	22	45	13		57	.356	258	344	75.3	29.59	29.30
New Jersey Devils	20.4	1987-88	80	38	36	6		82	.513	295	296	78.4	29.95	28.00
New Jersey Devils	20.1	1999-00	82	45	24	8	5	103	.628	251	203	87.5	33.13	25.62
New Jersey Devils	19.9	2015-16	82	38	36		8	84	.512	182	202	83.0	24.43	28.65
New Jersey Devils	19.9	1990-91	80	32	33	15		79	.494	272	264	79.7	31.19	27.95
New Jersey Devils	19.7	1998-99	82	47	24	11		105	.640	248	196	85.5	31.28	24.71
New Jersey Devils	19.6	1985-86	80	28	49	3		59	.369	300	374	74.3	29.18	31.16
New Jersey Devils	19.5	2013-14	82	35	29		18	88	.537	197	195	86.4	26.82	25.48
New Jersey Devils	19.4	1984-85	80	22	48	10		54	.338	264	346	76.7	29.69	29.91
New Jersey Devils	19.3	2014-15	82	32	36		14	78	.476	176	209	80.6	24.49	30.71
New Jersey Devils	19.3	1992-93	84	40	37	7		87	.518	308	299	81.4	33.02	29.81
New Jersey Devils	19.0	1989-90	80	37	34	9		83	.519	295	288	80.3	30.80	30.71
New Jersey Devils	18.9	1997-98	82	48	23	11		107	.652	225	166	86.7	29.28	23.70
New Jersey Devils	18.9	2008-09	82	51	27		4	106	.646	238	207	79.9	32.90	29.45
New Jersey Devils	18.7	2009-10	82	48	27		7	103	.628	216	186	82.8	29.99	26.99
New Jersey Devils	18.3	1993-94	84	47	25	12		106	.631	306	220	81.1	31.63	29.01
New Jersey Devils	18.3	1988-89	80	27	41	12		66	.413	281	325	75.4	31.20	29.89