Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/66427
EIA plant 66427
Marshfield · Plymouth · MA
Emerald Marshfields, LLC
Operated by Emerald Marshfield, LLC
Published location
Where is Emerald Marshfields, LLC?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
42.099331, -70.714586
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the MA plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
168
2126
3179
4240
5289
6248
7290
8261
9204
10170
11104
1265
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 68 |
| 2 | 126 |
| 3 | 179 |
| 4 | 240 |
| 5 | 289 |
| 6 | 248 |
| 7 | 290 |
| 8 | 261 |
| 9 | 204 |
| 10 | 170 |
| 11 | 104 |
| 12 | 65 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 68 MWh |
| 2 | 126 MWh |
| 3 | 179 MWh |
| 4 | 240 MWh |
| 5 | 289 MWh |
| 6 | 248 MWh |
| 7 | 290 MWh |
| 8 | 261 MWh |
| 9 | 204 MWh |
| 10 | 170 MWh |
| 11 | 104 MWh |
| 12 | 65 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| EMAR1 | Solar Photovoltaic | SUN | 1.9 | OP |
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Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
66427
Sector
IPP Non-CHP
Water source
NA
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right Emerald Marshfields, LLC power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at Emerald Marshfields, LLC
Variation in the published months
Across 12 numeric monthly generation entries, 7 has the highest recorded value (290 MWh) and 12 the lowest (65 MWh). Their difference is 225 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| EMAR1 | Solar Photovoltaic | 1.9 | 1.9 | 1.9 | Not supplied |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.