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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/distributed-generation-hosting-capacity-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Distribution AutomationDistributed Generation Hosting Capacity Patents: Who Holds the Feeder-Level Claims
- 71.7% concentration. The top five assignees hold 33 of the 46 records in scope — a field with a clear leader rather than a scattered field of equal filers.
- Filings doubled 2021→2024. Activity rose from 2 to 4 records across that span, tracking utilities' growing need to quantify how much distributed generation a feeder can absorb.
- H02J dominates at 84.8%. Power supply and grid-system claims sit under nearly every record; control-layer classes like G05F and G05B trail well behind, at 23.9% and 15.2%.
46
Published Records
72%
Top-5 Share of All Records
+100%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth compares 2021 (2 records) with 2024 (4) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 46 records in scope (CR5), not by the ranked leaders only.
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview
What this landscape covers
Distributed generation hosting capacity is the question of how much rooftop solar, storage or other distributed power a feeder can absorb before voltage, thermal or protection limits are violated. The patent set here spans 46 published records filed between 2015 and mid-2026, drawn from claims that combine hosting-capacity or feeder-voltage-rise language with a specific mitigation mechanism: reverse power flow management, tap-changer operation, smart inverter functions, unbalance mitigation, curtailment allocation or network reinforcement.
Because publication lags filing by roughly 18 months, the 2025 and 2026 counts in the trend chart are still filling in and should not be read as a slowdown. The peak year on record so far is 2023, with 11 records.
Filing activity by year and assignee concentration
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
The data
Filing trend and technology composition
Two views of the same 46-record set: how filing activity has moved year over year, and which IPC subclasses carry the claims.
A field still in its build-up phase
Filings were negligible before 2021 (2 that year), climbed to a peak of 11 in 2023, and grew from 2 to 4 records between 2021 and 2024 — a +100% rise over that span. Later years are undercounted due to publication lag, not falling interest.
Power-systems claims dominate; control logic is secondary
H02J (power supply and grid systems) appears in 84.8% of the 46 records, making it the default frame for hosting-capacity claims. G05F (23.9%) and G05B (15.2%) cover the control and regulation layer, while H04B (15.2%) reflects the communications backbone needed for curtailment allocation and smart inverter coordination. Narrower classes — G06F, H02M, H02P, G01R — each sit at 6.5% or below, marking thinner but still active claim territory.
Shares are the percentage of the 46 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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The most-cited records in this set
Representative filing
Methods and systems for assessing hosting capacity in a distribution system
COMMONWEALTH EDISON COMPANY
Methods and systems are described for determining a distribution system's hosting capacity for distributed power generation. Hosting capacity may be assessed on a feeder-by-feeder basis. Performing a hosting capacity assessment may include randomly selecting spot load points in a feeder as candidates for installation of distributed power generation sources. The hosting capacity assessment may be repeated a number of times to ensure optimal results and to correct for any violations of system performance parameters caused by an addition of distributed power generation at a given spot load point.Filed by Commonwealth Edison Company, published 2020-03-19 as US20200091765A1.
Highest-cited published documents
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20160231756A1 | System and method for regulation of voltage on an electrical network | 23 |
| 2 | US20190356131A1 | Methods and systems for determining distribution grid hosting capacity | 14 |
| 3 | US20230238801A1 | Dynamic hosting capacity analysis framework for distribution system planning | 11 |
| 4 | US20230223751A1 | Two-Way Electrical Power Distribution Network | 10 |
| 5 | US20230350363A1 | System and method of energy supply chain management and optimization through an energy virtual twin | 9 |
| 6 | US20200091765A1 | Methods and systems for assessing hosting capacity in a distribution system | 9 |
| 7 | US20240291274A1 | Systems and methods for ac optimal power flow modeling for unbalanced distribution systems | 6 |
| 8 | US9600004B2 | System and method for regulation of voltage on an electrical network | 5 |
| 9 | EP4216395A1 | Dynamic hosting capacity analysis framework for distribution system planning | 4 |
| 10 | US12062910B2 | Two-way electrical power distribution network | 4 |
Citation counts reflect influence within the searched corpus and favour older filings; they are not a measure of current commercial importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers mean for filing strategy
Three read-outs from the same 46-record set, framed for a team deciding where to file or design around.
Concentration
71.7%
of 46 records held by top 5 assignees
A field with a clear leader, not a crowded free-for-all
The top five assignees combined hold 33 of the 46 records in scope, and the top ten account for all 46. That is a steep concentration curve: a small number of filers have staked out most of the claim space, and the leader alone holds 9 records.
Leader: 9 records
Growth
+100%
2021 to 2024, 2 records to 4
Activity is building, not settling
Filing volume doubled between 2021 and 2024, and the peak year so far is 2023 at 11 records. Because publication lags filing by about 18 months, 2025-2026 figures are still incomplete and should not be read as the trend flattening.
Peak year: 2023, 11 records
Technology mix
84.8%
of 46 records classed under H02J
Grid-systems claims are the default frame
H02J covers the overwhelming majority of records, meaning most applicants frame hosting-capacity inventions as power-supply and grid-system claims first, then layer in control logic (G05F, G05B) or communications (H04B) as secondary classes.
Secondary classes: G05F 23.9%, G05B 15.2%
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Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to distributed generation hosting capacity, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who is filing, and where the gaps sit
The ranked leaders in this dataset cover 24 companies; concentration is heavy at the top, and momentum has cooled for several established filers in the most recent tracked year.
Leader
9 records
single-assignee count
One utility-linked filer sets the pace
The top-ranked assignee holds 9 of the 46 records, well ahead of the field. A co-filing pair between a utility and a university appears among the strongest co-assignee relationships in the set, at 3 shared records.
Strongest co-filing pair: 3 shared records
Long tail
24 companies
in the ranked list
A steep drop after the top ten
Fifth place holds 5 records and tenth place holds 2, and the top ten together account for 100% of the 46 records in scope — meaning every record in this dataset traces to one of ten organisations.
Tenth place: 2 records
Momentum
0 in latest year
for several tracked assignees
Recent-year activity has gone quiet for early movers
Several assignees that filed earlier in the window, including a utility-university pairing, show 0 records in the latest tracked year and a -100% year-over-year change — consistent with publication lag rather than necessarily an exit from the space.
Read against an 18-month publication lag
Recent-year filing momentum by assignee
| Assignee | Recent year | YoY |
|---|---|---|
| TMRW Foundation IP S.a.r.l. | 0 | — |
| Elexsys IP Pty Ltd | 0 | — |
| Commonwealth Edison Company | 0 | -100% |
| OPERATION TECHNOLOGY INC | 0 | -100% |
| General Electric Company | 0 | — |
| University of Denver | 0 | -100% |
| TMRW GROUP IP | 0 | -100% |
| Hitachi, Ltd. | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's next
Where to take this analysis
The dataset points to a concentrated core and a thinner set of adjacent claim areas. The next steps depend on whether the goal is freedom-to-operate or a filing strategy.
Map claims against the top ten filers
Since the top ten assignees account for 100% of the 46 records in scope, a freedom-to-operate review can focus narrowly on those portfolios rather than scanning the full long tail.
Explore assignee portfolios in EurekaProbe the under-claimed control layer
G05F and G05B claims trail H02J by a wide margin, suggesting control-logic implementations of hosting-capacity assessment are less contested than the grid-systems framing.
Run a white-space search in EurekaTrack the next 12-18 months of publications
With 2025-2026 filings still emerging, the true trajectory since the 2023 peak will not be clear until publication catches up.
Set a monitoring alert in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Frequently asked questions
In this dataset, hosting capacity refers to inventions that quantify or manage how much distributed generation — typically rooftop solar or storage — a distribution feeder can accept before voltage, thermal or protection limits are breached. Claims in this space usually pair a hosting-capacity assessment method with a mitigation mechanism such as reverse power flow control, tap-changer operation, smart inverter functions or curtailment allocation. The representative filing in this set, US20200091765A1, assesses hosting capacity on a feeder-by-feeder basis by testing randomly selected spot load points against system performance limits.
The ranked list covers 24 companies, and it is heavily front-loaded: the top five assignees together hold 33 of the 46 records in scope, or 71.7%, and the top ten account for all 46 records. The leading single assignee holds 9 records, well ahead of fifth place at 5 and tenth place at 2. That pattern means most of the claim space traces to a small group of utilities, technology vendors and one university, rather than being spread across many independent filers.
Filing activity grew from 2 records in 2021 to 4 in 2024, a rise of 100% over that span, with the peak year so far at 2023 with 11 records. It is not accurate to describe the field as slowing based on 2025-2026 counts, because patent publication typically lags the actual filing date by around 18 months — the most recent one to two years in any patent trend are always undercounted until later data catches up.
H02J, covering power supply and grid systems, appears in 84.8% of the 46 records and is the dominant classification. G05F (electric/magnetic variable control) and G05B (control and regulating systems) follow at 23.9% and 15.2% respectively, covering the algorithmic side of hosting-capacity assessment. H04B (transmission, general) sits at 15.2% and reflects the communications layer needed to coordinate smart inverters and curtailment. Because a single record can carry several classes, these shares add up to more than 100% of the record total.
Given that H02J claims already sit on 84.8% of the record set, the control and communications layer looks comparatively open: G05F, G05B and H04B each cover well under a quarter of records. Specific sub-areas worth checking against existing claims include phase-unbalance mitigation algorithms, curtailment allocation fairness logic, tap-changer coordination with smart inverter functions, and feeder-level digital twin modelling — areas that show up in the abstracts but not as the dominant classification of most filings.
Answers are grounded in the same dataset. Derived from a Patsnap search on Distributed Generation Hosting Capacity covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company's registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.