Southern Maryland Elec Coop Inc in Maryland: 14.73 ¢ home rates, SAIDI and solar

Roughly 177,155 Maryland accounts belong to Southern Maryland Elec Coop Inc, classed by EIA as cooperative; the residential count is 160,882. It connects 55.9 net-metered homes per 1,000 home accounts, 6.4 times the national median.

At 1,142 kWh a month a Southern Maryland Elec Coop home pays about $168 in energy: 14.73 ¢/kWh, 17.5% below the Maryland average of 17.86 ¢.

It connects 55.9 net-metered homes per 1,000 home accounts, 6.4 times the national median.

Rooftop solar on the Southern Maryland Elec Coop grid

Net-metered homes per 1,000: 55.96.4x the national median of 8.7

Net metering stands out at Southern Maryland Elec Coop Inc: 8,995 residential installations on 160,882 home accounts, 55.9 per 1,000. That is place 2 of 5 Maryland utilities and 6.4 times the national median (8.7). All installations together total 88.0 MW, an average of 9.7 kW each, and 50,174 MWh went back to the utility.

How it compares

Southern Maryland Elec Coop Inc
Southern Maryland Elec Coop Inc, 2024	Home	Business	Bill	SAIDI
Southern Maryland Elec Coop IncLowest in this table	14.73 ¢/kWh	12.37 ¢/kWh	$168at 1,142 kWh	114 minSAIDI
Maryland average against this company, which is 2 of 5 on price	+3.13 ¢/kWhcompany 17.5% below	+0.59 ¢/kWhcompany 4.6% below	+$36a month at 1,142 kWh	-24 mincompany 24 above
Baltimore Gas & Electric Co	16.12 ¢/kWhcompany 8.6% below	6.11 ¢/kWhcompany 102.4% above	$18416 more than company	67 mincompany 47 above

Compare 7 Maryland companies

Southern Maryland Elec Coop Inc: 2025

Southern Maryland Elec Coop: +11.3% on 2024 for homes, Maryland +9.1%.

Southern Maryland Elec Coop home price, 2025: 16.40 ¢/kWh+11.3% on 2024, early release
Southern Maryland Elec Coop SAIDI, 2025: 118 min+3% on 2024, early release
Southern Maryland Elec Coop against Maryland, 2025: +2.2 pointsSouthern Maryland Elec Coop +11.3%, Maryland +9.1%, price in Maryland 19.48 ¢

Southern Maryland Elec Coop Inc: 16.40 ¢/kWh in the 2025 early release, +11.3% from 14.73 ¢; Maryland as a whole went +9.1%, so Southern Maryland Elec Coop ran ahead of it by 2.2 points. Its SAIDI is 118 minutes against 114 in 2024.

Carbon context

Southern Maryland Elec Coop Inc serves 160,882 homes in Maryland. At 1,142 kWh a month that is about 269 kg of CO₂, or 3,232 kg a year, at the Maryland plant rate, state generation and not this utility: Maryland generation mix.

Southern Maryland Elec Coop Inc charts

Residential price since 2015: 14.73 ¢ in 2024

12.24 ¢ in 2015, 14.73 ¢ in 2024 (+20.4%); Maryland 13.82 to 17.86 ¢.

Southern Maryland Elec Coop Inc residential price 2015-2024, 2015 to 2024: 10 rows

Year	Southern Maryland Elec Coop	Gap to Maryland residential	Gap to U.S. residential
2015	12.24	-1.58	-0.41
2016	12.92	-1.31	+0.37
2017	12.64	-1.32	-0.25
2018	12.10	-1.20	-0.77
2019	12.26	-0.86	-0.75
2020	11.27	-1.74	-1.88
2021	11.93	-1.19	-1.73
2022	15.05	+0.59	+0.01
2023	14.00	-2.60	-2.00
2024	14.73	-3.13	-1.75

10 rows from EIA retail sales.

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Southern Maryland Elec Coop Inc SAIDI, 2021-2024

120 min in 2021, 114 in 2024.

Southern Maryland Elec Coop Inc SAIDI by year, 2021 to 2024: 4 rows

Year	Southern Maryland Elec, no major events
2021	120
2022	117
2023	103
2024	114

4 rows from EIA-861 survey.

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Reliability: SAIDI 113.9 min

113.9 min, 1.14x the median reporter, rank 380 of 673.

min

Company, no major events113.9
Company, with major events146.0

Southern Maryland Elec Coop Inc, Reliability: EIA-861 survey.

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Analyst note

Southern Maryland Elec Coop Inc billed homes 12.24 ¢/kWh in 2015 and 14.73 ¢ in 2024, +20.4% in all, and lagged the Maryland average (+29.2%) by 8.9 points. Southern Maryland Elec Coop Inc's sharpest move came in 2022, +26.2%. The high is 15.05 ¢ (2022) and the low 11.27 ¢ (2020). 2024: +5.2% here, +7.6% for the Maryland average. SAIDI at Southern Maryland Elec Coop Inc (major events excluded) went from 120 minutes in 2021 to 114 in 2024, -5%, between 103 (2023) and 120 (2021). Against the national median, Southern Maryland Elec Coop Inc came in lower on SAIDI in 0 of 4 years, and 2024 ended at 114 minutes, +14 from the median. 2022: 493 minutes with major events, 117 without, the widest gap of any year. Southern Maryland Elec Coop Inc has 1 cheaper and 3 higher-priced Maryland peers among 5 with 20,000+ homes. Next cheaper, The Potomac Edison Company, bills 13.26 ¢ (-1.47). Next higher-priced, Baltimore Gas & Electric Co, bills 16.12 ¢ (+1.39).

Price is the selling point in this record: 17.5% under the Maryland average, with 114 outage minutes close to the national median (1.14x).

Home accounts at Southern Maryland Elec Coop Inc went from 146,123 in 2015 to 160,882 in 2024, +10.1%. Business customers paid 0.84 times the home price in 2024 (12.37 against 14.73 ¢); the ratio was 0.86 in 2015. SAIFI went from 1.30 in 2021 to 1.13 in 2024, between 1.09 and 1.32.

Outages and home price of Southern Maryland Elec Coop Inc (EIA utility 17637), 2013 to 2024

Yearly SAIDI at Southern Maryland Elec Coop Inc: 120 minutes in 2021, 114 in 2024, little changed (−5%). The low came in 2023 at 103, the high in 2021 at 120; 4 years were filed. The Maryland median in 2024 was 67 minutes, so Southern Maryland Elec Coop Inc ran above it.

Home rates at Southern Maryland Elec Coop Inc went from 13.73 ¢ in 2013 to 14.73 ¢ in 2024 (+7.3%), which is 18.98 ¢ to 15.12 ¢ in 2025 dollars (−20.3%). Over 12,000 kWh a year the real price meant $2,277 in 2013 and $1,814 in 2024. Of 11 Maryland utilities with 1,000+ home accounts in 2024, Southern Maryland Elec Coop Inc stood 5th cheapest (9th of 9 in 2013).

Southern Maryland Elec Coop Inc outage minutes a customer, 2021 to 2024: 114 in 2024

Southern Maryland Elec Coop Inc at 114 min in 2024 and the Maryland median at 67.

Southern Maryland Elec Coop Inc home price since 2013: −20.3% after inflation

Southern Maryland Elec Coop Inc: 15.12 ¢ in 2025 dollars (solid) and 14.73 ¢ as billed (dashed) in 2024.

Southern Maryland Elec Coop Inc, EIA utility 17637, year by year among Maryland utilities

Southern Maryland Elec Coop In 2013-2024: 12 rows

Year, Southern Maryland	¢ billed	¢ in 2025 $	Price place, Southern Maryl	SAIDI min	SAIFI	SAIDI place, Southern Maryl	Maryland median SAIDI
2013	13.73	18.98	9 of 9	–	–	–	–
2014	14.01	19.05	10 of 10	–	–	–	–
2015	12.24	16.62	8 of 10	–	–	–	–
2016	12.92	17.32	9 of 11	–	–	–	–
2017	12.64	16.61	7 of 11	–	–	–	–
2018	12.10	15.52	6 of 11	–	–	–	–
2019	12.26	15.44	8 of 14	–	–	–	–
2020	11.27	14.01	5 of 12	–	–	–	–
2021	11.93	14.17	5 of 11	120	1.30	5 of 6	88
2022	15.05	16.55	9 of 11	117	1.32	5 of 6	99
2023	14.00	14.79	6 of 11	103	1.09	5 of 7	60
2024	14.73	15.12	5 of 11	114	1.13	5 of 7	67

Southern Maryland Elec C, EIA utility 17637: EIA-861, CPI-U.

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SAIDI explained, Maryland real prices.

Facts

Customer accounts: 177,1556.5% of Maryland total
Residential accounts: 160,8826.6% of Maryland homes
Commercial accounts: 16,2739.2% of the base
Residential rate: 14.73 ¢/kWhplace 2 of 5, -17.5% against the state
Commercial rate: 12.37 ¢/kWhplace 5 of 7, -4.6% against the state
SAIDI, no major events: 113.9 minbetter than 44% of reporters
SAIFI, no major events: 1.131.12x the median
SAIDI with major events: 146.0 min22.0% from event days
Net-metered capacity: 88.0 MW9,067 installations
Counties served: 4all in Maryland
Average residential use: 13,700 kWh/yr1,142 a month
Implied monthly bill: $168-$20 on the U.S. rate, 1,142 kWh
Residential rate since 2015: +20.4%12.24 to 14.73 ¢/kWh
SAIDI trend: -5%120 min in 2021, 114 in 2024

Data tables

2024 by sector, Southern Maryland Elec Coop Inc

Southern Maryland Elec Coop Inc sector	Accounts	Rate ¢/kWh	Gap to Maryland ¢/kWh
Residential	160,882	14.73	-3.13
Commercial	16,273	12.37	-0.59

Year by year, Southern Maryland Elec Coop Inc

Year	Home accounts, Southern Maryland Elec	Home ¢	Business ¢	Ratio	SAIDI	SAIFI
2015	146,123	12.24	10.46	0.86	No data	No data
2016	146,605	12.92	10.48	0.81	No data	No data
2017	149,170	12.64	10.14	0.80	No data	No data
2018	150,167	12.10	10.35	0.86	No data	No data
2019	151,719	12.26	10.43	0.85	No data	No data
2020	153,531	11.27	10.19	0.90	No data	No data
2021	155,541	11.93	10.47	0.88	120	1.30
2022	157,143	15.05	12.94	0.86	117	1.32
2023	158,837	14.00	11.45	0.82	103	1.09
2024	160,882	14.73	12.37	0.84	114	1.13

Peers of Southern Maryland Elec Coop in Maryland, place 2 of 5 on home price

Utility near Southern Maryland Elec Coop on price	SAIDI min, gap to Southern Maryland Elec Coop	Home ¢, gap to Southern Maryland Elec Coop	Gap % to Southern Maryland Elec Coop	Accounts, Southern Maryland Elec Coop = 1
1. The Potomac Edison Company	+45	-1.47	-10.0%	1.64
2. Southern Maryland Elec Coop Inc (this utility)	114	14.73	-	1.00
3. Baltimore Gas & Electric Co	-47	+1.39	+9.4%	7.58
4. Choptank Electric Cooperative, Inc	+6	+1.72	+11.7%	0.32
5. Potomac Electric Power Co	-67	+4.00	+27.2%	3.41

Who buys Southern Maryland Elec Coop's electricity

Class at Southern Maryland Elec Coop	Accounts	Of Southern Maryland Elec Coop accounts	Of Southern Maryland Elec Coop MWh sold	kWh a year per Southern Maryland Elec Coop account
Residential	160,882	90.8%	64.0%	13,700
Commercial	16,273	9.2%	36.0%	76,024
Industrial and other	0	0.00%	0.0%	No data

Southern Maryland Elec Coop among Maryland cooperatives

Southern Maryland Elec Coop and its neighbours on price	SAIDI min, gap to Southern Maryland Elec Coop	Home ¢, gap to Southern Maryland Elec Coop	Accounts, Southern Maryland Elec Coop = 1
1. Southern Maryland Elec Coop Inc (MD, this utility)	114	14.73	1.00
2. Choptank Electric Cooperative, Inc (MD)	+6	+1.72	0.32

Southern Maryland Elec Coop: meters, rate options and solar

Measure	Southern Maryland Elec Coop	Maryland context	Southern Maryland Elec Coop detail
Southern Maryland Elec Coop home meters on AMI	99.8%	Maryland 86.5%	161,171 of 161,500 meters
Home meters, AMR (drive-by read)	190	Maryland figure not published	0.1% of meters
Homes with daily digital access	160,553	Maryland figure not published	100% of the 160,882 home accounts
Time-of-use rate for Southern Maryland Elec Coop homes	Offered	2 of 11 Maryland utilities offer one	1,360 homes on dynamic pricing, 0.85% of 160,882
Net-metered installations	9,067	99% residential	55.9 homes per 1,000 accounts, 9.7 kW average

Monthly energy cost by use, Southern Maryland Elec Coop Inc

kWh	Share of a 1,142 kWh month	Cost a month at 14.73 ¢	vs U.S.	Cost a year
250	22%	$36.83	-$4.37	$442
500	44%	$73.65	-$8.75	$884
750	66%	$110.48	-$13.12	$1,326
1,000	88%	$147.30	-$17.50	$1,768
1,500	131%	$220.95	-$26.25	$2,651
2,000	175%	$294.60	-$35.00	$3,535

Outage record, Southern Maryland Elec Coop Inc

Measure, Southern Maryland El	No events	All events	Converted
SAIDI minutes	113.9	146.0	1.90 h
SAIFI interruptions	1.130	1.310	0.88 yr apart
CAIDI minutes	100.8	111.4	1.68 h

Territory of Southern Maryland Elec Coop Inc

4 Maryland counties, region RFC:

Maryland other states: 4 of 4 counties of Southern Maryland Elec Coop Inc drawn

Southern Maryland Elec Coop Inc: 4 counties listed by EIA-861, Census 2023 outlines.

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County list

Calvert
Charles
Prince Georges
St Marys

Questions on Southern Maryland Elec Coop Inc

How big is Southern Maryland Elec Coop Inc in Maryland, by customer accounts?

177,155 accounts in 2024: residential 160,882, commercial 16,273, industrial 0.

How many cents per kWh does Southern Maryland Elec Coop Inc charge homes?

In 2024 homes paid 14.73 cents; against the Maryland average that is -17.5%.

What are the SAIDI and SAIFI of Southern Maryland Elec Coop Inc?

SAIDI 113.9 min and SAIFI 1.13 a year, major events excluded; ratio to the national median 1.14, CAIDI 101 min.

How many net-metered systems connect to Southern Maryland Elec Coop Inc?

9,067 installations with 88.0 MW, of which residential installations number 8,995.

What would a typical Southern Maryland Elec Coop Inc home pay each month?

1,142 kWh at 14.73 cents comes to about $168, energy only.

Is Southern Maryland Elec Coop Inc cheaper than other Maryland utilities?

Rank 2 of 5 in Maryland on price, -17.5% against the state average; 1 charge less than 14.73 ¢.

How much of the Southern Maryland Elec Coop Inc load is business?

Homes take 64.0% of 3,441,254 MWh, commercial accounts 36.0%, industrial and other 0.0%; the 16,273 commercial accounts use 76,024 kWh each, 5.5 times a home.

Does Southern Maryland Elec Coop Inc have smart meters or TOU rates?

161,171 of 161,500 home meters are AMI, 99.8%. Southern Maryland Elec Coop offers a home time-of-use rate; 1,360 customers use dynamic pricing, 0.85% of its homes.

Since 2015, has Southern Maryland Elec Coop Inc become cheaper than other Maryland utilities?

4th cheapest of 5 in 2015, 2nd of 5 in 2024; its price rose 20.4% while Maryland rose 29.2%.

Did Southern Maryland Elec Coop Inc cut or raise its 2025 home price?

16.40 cents per kWh, +11.3% on the 14.73 of 2024 (EIA early release for 2025).

Utilities with a similar home price

Home prices nearest to Southern Maryland Elec Coop Inc at 14.73 ¢/kWh in 2024, among companies with a page here, any state.

PECO Energy CoPennsylvania, 14.74 ¢/kWh, 0.01 ¢ above
Upper Michigan Energy Resources Corp.Michigan, 14.76 ¢/kWh, 0.03 ¢ above
Tampa Electric CoFlorida, 14.67 ¢/kWh, 0.06 ¢ below
Laurens Electric Coop, IncSouth Carolina, 14.66 ¢/kWh, 0.07 ¢ below

Rate plans on file

3 home plan records, energy charges: 6.5 to 27.5 ¢/kWh.

Time-of-use: 2, e.g. Residential Service

Who offers time-of-use and tiered rates (17 Apr 2026 snapshot).

Primary sources for Southern Maryland Elec Coop Inc in Maryland: 14.73 ¢ home rates, SAIDI and solar

EIA-861 annual report entry for Southern Maryland Elec Coop Inc in Maryland: 14.73 ¢ home rates, SAIDI and solar, customers and sales
EIA-861 form instructions for Southern Maryland Elec Coop Inc in Maryland: 14.73 ¢ home rates, SAIDI and solar, how a customer is counted
EIA state profiles for Southern Maryland Elec Coop Inc in Maryland: 14.73 ¢ home rates, SAIDI and solar, the state price average