Solar installers in Pennsylvania

225 profiled installers based in Pennsylvania, plus the national companies most active in the state — volume, prices and ownership mix from public data.

Dataset updated September 2026 . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.

Installers based here

225

Recorded installs

24,332

State capacity

2.5 GW

Median price

$5.75/W

pre-incentive

Any headquarters

Most active in Pennsylvania

#	Installer	Installs in PA
1	PosiGen Provider LLC	2,968
2	Vivint Solar	1,293
3	Solar States	1,111
4	Astrum Solar	657
5	Greenspring Energy	439
6	Palmetto Solar	400
7	Sunlion Energy Systems	356
8	Energy Independent Solutions	337
9	Endless Mtn Solar Services	315
10	Advanced Solar	283
11	Jk Mechanical	278
12	Heat Shed	276
13	Velocity Energy and Home Solutions	259
14	Sunnymac	245
15	Trinity Solar	231

Based in the state

Installers headquartered in Pennsylvania

Installer	Installs	Capacity	Median $/W	TPO	Active since
PosiGen Provider LLC	2,968	4.8 MW	—	0%	2021
Astrum Solar	632	28.9 MW	$5.44/W	2%	2010
Advanced Solar	484	7.6 MW	$5.13/W	1%	2005
Greenspring Energy	353	2.7 MW	$5.85/W	0%	2009
Sunlion Energy Systems	305	6.3 MW	$5.25/W	0%	2009
Velocity Energy and Home Solutions	259	923 kW	—	0%	2024
Jk Mechanical	258	5.7 MW	$5.20/W	0%	2009
Heat Shed	238	1.9 MW	$6.93/W	0%	2003
Moore Energy	188	11.3 MW	$6.77/W	5%	2009
Sunwise Energy	171	1.6 MW	$1.46/W	0%	2022
Orbit Energy & Power LLC	153	176 kW	$1.75/W	0%	2021
VLADISLAVS RINGE DBA: FLOWERMARK LLC	150	31.0 MW	—	0%	2016
Standard Solar	148	51.5 MW	$5.19/W	5%	2010
Freedom Forever Pennsylvania, LLC	144	176 kW	$1.95/W	0%	2021
Solular	139	1.3 MW	$5.93/W	1%	2010
Eos Energy	137	1.3 MW	$6.12/W	0%	2009
I Need Solar Com	137	4.0 MW	$5.82/W	0%	2009
Kc Green Energy	132	3.1 MW	$5.24/W	0%	2010
Cmi Solar Electric	122	2.1 MW	$5.74/W	1%	2002
Conlyn Home Improvement Codba Solar Pro	121	1.2 MW	$6.10/W	0%	2009
TEROX ELECTRIC & CONST. CORP	120	102 kW	—	0%	2022
Solar States	114	1.3 MW	$2.64/W	1%	2014
Energy Independent Solutions	111	1.7 MW	$2.87/W	0%	2010
JOSEPH KISS	96	661 kW	—	0%	2009
Suntricity Power	90	663 kW	$6.85/W	0%	2010
ROBERT MONK	89	280 kW	—	0%	2009
Aztec Solar Power	79	1.1 MW	$6.27/W	1%	2009
Sonic Development	77	707 kW	$6.27/W	0%	2010
Eichelbergers Energy Company	73	1.3 MW	$5.60/W	0%	2010
Secco	70	799 kW	$7.43/W	0%	2009
EAGLE ELECTRICAL CONSTRUCTION CO INC	70	75 kW	—	0%	2022
Power Up	68	422 kW	$4.90/W	0%	2010
CALLISTO ENERGY MANAGEMENT CORPORATION	67	102 kW	$1.95/W	0%	2022
Kc Larson	65	493 kW	$6.50/W	0%	2009
Vox Energy Solutions	65	477 kW	$6.76/W	0%	2009
Smuckers Energy	63	2.0 MW	$6.05/W	0%	2009
Suntuity Electric LLC	63	125 kW	$2.69/W	0%	2021
Eclipse Solar	61	533 kW	$5.48/W	0%	2009
Mesa Electric	61	280 kW	$8.63/W	0%	2002
Green Rack Contracting L.L.C.	61	606 kW	$2.55/W	0%	2022
Kiss Electric	59	690 kW	$6.82/W	39%	2010
Energy Systems And Installation	58	5.2 MW	$5.27/W	0%	2010
Stewartstown Electrical Service	58	499 kW	$5.50/W	0%	2010
Envinity	56	505 kW	$6.96/W	0%	2009
Solardelphia	54	674 kW	$7.28/W	0%	2008
Ascom	54	429 kW	$6.66/W	0%	2009
RAS ELECTRIC	54	287 kW	$2.01/W	0%	2022
Solar Electric Power Systems	51	569 kW	$5.73/W	0%	2009
Haller Enterprises	50	1.3 MW	$5.11/W	0%	2010
Sun Directed	49	409 kW	$6.00/W	0%	2010
Mt Ruhl Electrical Contracting	47	586 kW	$5.84/W	0%	2009
Meadow Valley Electric	44	2.6 MW	$5.44/W	5%	2010
Exact Energy Partners LLC	42	223 kW	—	0%	2022
Indoor Quality Services	42	398 kW	$5.59/W	0%	—
Control Alt Energy	41	239 kW	$6.09/W	0%	2009
Ecomerica Consulting And Construction	41	337 kW	$6.30/W	0%	2009
Gettysburg Solar Formerly Usa Solar Store	41	503 kW	$5.79/W	0%	2011
Penn Renewables	41	536 kW	$7.16/W	0%	2009
Gravity Sun Power	38	385 kW	$5.88/W	0%	2009
Open Sky Energy	37	268 kW	$7.42/W	0%	2009
Guerrera And Sons Electric	36	257 kW	$6.98/W	0%	2009
Mountain View Solar And Wind	35	214 kW	$6.55/W	0%	2010
Keystone Energy	35	534 kW	$7.41/W	0%	2009
Adam Solar Resources	35	159 kW	$4.64/W	0%	2010
Green Field Energy Solutions	34	329 kW	$5.86/W	0%	2010
Solar Power Industries	34	250 kW	$5.44/W	0%	2009
Young's Electrical Services	34	98 kW	—	0%	2022
Worley And Obetz	33	223 kW	$5.82/W	0%	2009
Finley Shapiro Consulting	33	42 kW	$15.04/W	0%	2003
Keystone Country Building Groupkeystone Renewable Energy Solutions	33	329 kW	$6.83/W	0%	2009
Richard M Kline Son	33	1.3 MW	$5.85/W	0%	2009
Sun To Sun	33	613 kW	$5.72/W	0%	2010
Berks Solar	32	205 kW	$6.27/W	0%	2010
J.L. Electrical & Construction Company	31	265 kW	$2.00/W	0%	2022
Sons Power	30	262 kW	$6.30/W	0%	2010
PRATT BROTHERS SERVICES	30	133 kW	—	0%	2020
Lenape Solar A Division Of Hometown Energy Systems	28	372 kW	$4.46/W	0%	2011
All Good Energy	27	214 kW	$4.29/W	0%	2010
Maximus Solar	27	452 kW	$5.28/W	0%	2009
Renewable Energy For Pa	26	349 kW	$6.91/W	0%	2009
Sky Solar Solutions	26	97 kW	$6.23/W	0%	2010
Rosenberrys Electric	25	145 kW	$5.06/W	0%	2009
Solar Greenergy	25	331 kW	$4.87/W	0%	2011
Daflure Heating And Cooling	24	177 kW	$7.02/W	0%	2009
Safe Solar	24	186 kW	$6.25/W	0%	2010
AW Electrical LLC	24	341 kW	$2.00/W	0%	2022
FRANZINI ELECTRICAL SYSTEMS LLC	24	83 kW	—	0%	2024
Lifestyle Contracting LLC	24	364 kW	$1.96/W	0%	2025
VLADISLAVS RINGE	24	108 kW	—	0%	2010
West Penn Energy Solutions	23	100 kW	$7.62/W	0%	2009
Eclipse Solar Specialist	23	178 kW	$6.00/W	0%	2009
Sunprime Energy	23	201 kW	$5.91/W	0%	2010
BICKINGS ELECTRICAL	23	112 kW	—	0%	2011
LACARRUBBA ELECTRIC INC	23	193 kW	—	0%	2014
Real Earth Power	22	171 kW	$5.59/W	0%	2010
Helio Power Systems	21	198 kW	$5.80/W	0%	2009
Solanco Solar Industries	21	206 kW	$5.74/W	0%	2009
MALLOY FAMILY CONTRACTORS	21	107 kW	—	0%	2017
Bright Eye Solar	20	477 kW	$4.20/W	0%	2010
Solar By Weller A Division Of Scott A Weller Carpentry And Cabinets	20	144 kW	$6.65/W	0%	2010

"Based in" = the state with the most recorded installs for that installer. Top 100 shown, ordered by volume.

Frequently asked questions

How many solar installers are there in Pennsylvania?

PanelCensus profiles 225 installers based in Pennsylvania (5+ recorded installs each), resolved from 24,332 recorded installations in the state. Multi-state national installers also operate here — see the "most active" list.

Who is the biggest solar installer in Pennsylvania?

PosiGen Provider LLC has the most recorded installations in Pennsylvania with 2,968 systems.

See installation-level geography on the Pennsylvania solar page.