Derek Eder
@derekeder.com
Civic tech builder in Chicago. Partner at DataMade, President Emeritus at Chi Hack Night & Oak Park Village Trustee. Entrepreneur, developer, civic technology leader, climate advocate and public servant. he/him
Nov 7, 2025: since 8:30am, the same helicopter (N911VH) owned by the Cook County Sheriff has been buzzing over Oak Park and other western suburbs, presumably to do traffic enforcement.
Sheriff Dart, I know you love the ticket revenue this generates, but this is really terrorizing our residents.
Sheriff Dart, I know you love the ticket revenue this generates, but this is really terrorizing our residents.
November 7, 2025 at 4:30 PM
Nov 7, 2025: since 8:30am, the same helicopter (N911VH) owned by the Cook County Sheriff has been buzzing over Oak Park and other western suburbs, presumably to do traffic enforcement.
Sheriff Dart, I know you love the ticket revenue this generates, but this is really terrorizing our residents.
Sheriff Dart, I know you love the ticket revenue this generates, but this is really terrorizing our residents.
Last night, the Village of Oak Park passed ICE Free Zones 7-0, modeled after the City of Chicago, Evanston and our Township
Full legislation: oak-park.legistar.com/LegislationD...
Full legislation: oak-park.legistar.com/LegislationD...
November 5, 2025 at 8:49 PM
Last night, the Village of Oak Park passed ICE Free Zones 7-0, modeled after the City of Chicago, Evanston and our Township
Full legislation: oak-park.legistar.com/LegislationD...
Full legislation: oak-park.legistar.com/LegislationD...
they're back again. Oct 23, 2025
October 23, 2025 at 1:24 PM
they're back again. Oct 23, 2025
At first I thought it was operated by ICE or CBP, but nope!
The helicopter N911VH is registered with the Cook County Sheriff's Office just last month: registry.faa.gov/aircraftinqu...
The helicopter N911VH is registered with the Cook County Sheriff's Office just last month: registry.faa.gov/aircraftinqu...
October 8, 2025 at 8:38 PM
At first I thought it was operated by ICE or CBP, but nope!
The helicopter N911VH is registered with the Cook County Sheriff's Office just last month: registry.faa.gov/aircraftinqu...
The helicopter N911VH is registered with the Cook County Sheriff's Office just last month: registry.faa.gov/aircraftinqu...
Since 7am this morning, a helicopter has been flying in circles around Oak Park, Broadview, Maywood and Forest Park: www.flightradar24.com/data/aircraf...
October 8, 2025 at 8:38 PM
Since 7am this morning, a helicopter has been flying in circles around Oak Park, Broadview, Maywood and Forest Park: www.flightradar24.com/data/aircraf...
I was at the Broadview ICE facility this morning and witnessed firsthand local and state officers assisting ICE in violation of the Illinois TRUST act
October 3, 2025 at 3:58 PM
I was at the Broadview ICE facility this morning and witnessed firsthand local and state officers assisting ICE in violation of the Illinois TRUST act
here's the list of clean energy incentives expiring: opcan.org/updates/what...
August 20, 2025 at 5:09 PM
here's the list of clean energy incentives expiring: opcan.org/updates/what...
Timeline cleanse: DataMade has a new website!
June 11, 2025 at 9:57 PM
Timeline cleanse: DataMade has a new website!
A project I wrote 10 years ago is on the home page of hacker news?
CSV to HTML Table: everything old is new again
news.ycombinator.com/item?id=4405...
CSV to HTML Table: everything old is new again
news.ycombinator.com/item?id=4405...
May 22, 2025 at 4:24 PM
A project I wrote 10 years ago is on the home page of hacker news?
CSV to HTML Table: everything old is new again
news.ycombinator.com/item?id=4405...
CSV to HTML Table: everything old is new again
news.ycombinator.com/item?id=4405...
Congratulations to Illinois for reaching 4 gigawatts of solar! As of Mar 8, 2025, 4,235 megawatts (MW) of solar have been energized in the State of Illinois.
ilsolarmap.com
ilsolarmap.com
March 8, 2025 at 11:56 PM
Congratulations to Illinois for reaching 4 gigawatts of solar! As of Mar 8, 2025, 4,235 megawatts (MW) of solar have been energized in the State of Illinois.
ilsolarmap.com
ilsolarmap.com
Latest update from ilsolarmap.com
IL now has a total of 3,978 MW of solar operating capacity!
In the last 2 months alone, 1,379 MW have come online thanks to several large utility-scale projects including Double Black Diamond in Sangamon county and Maple Flats in Clay county
IL now has a total of 3,978 MW of solar operating capacity!
In the last 2 months alone, 1,379 MW have come online thanks to several large utility-scale projects including Double Black Diamond in Sangamon county and Maple Flats in Clay county
February 13, 2025 at 4:07 PM
Latest update from ilsolarmap.com
IL now has a total of 3,978 MW of solar operating capacity!
In the last 2 months alone, 1,379 MW have come online thanks to several large utility-scale projects including Double Black Diamond in Sangamon county and Maple Flats in Clay county
IL now has a total of 3,978 MW of solar operating capacity!
In the last 2 months alone, 1,379 MW have come online thanks to several large utility-scale projects including Double Black Diamond in Sangamon county and Maple Flats in Clay county
Last harvest from our garden for the year! First freeze is finally coming to Chicago tonight (Nov 20th)
November 20, 2024 at 3:09 PM
Last harvest from our garden for the year! First freeze is finally coming to Chicago tonight (Nov 20th)
Full house tonight at #chihacknight for Bike Lane Uprising! chihacknight.org/events/2024/...
June 12, 2024 at 12:04 AM
Full house tonight at #chihacknight for Bike Lane Uprising! chihacknight.org/events/2024/...
Illinois Solar Map is now showing planned projects! Now showing:
☀️ 2,286 MW of operating solar (blue)
🚧 5,625 KW planned or under construction (purple)
Explore by tract, county, place or state district
ilsolarmap.com#/?status=pla...
☀️ 2,286 MW of operating solar (blue)
🚧 5,625 KW planned or under construction (purple)
Explore by tract, county, place or state district
ilsolarmap.com#/?status=pla...
May 29, 2024 at 4:46 PM
Illinois Solar Map is now showing planned projects! Now showing:
☀️ 2,286 MW of operating solar (blue)
🚧 5,625 KW planned or under construction (purple)
Explore by tract, county, place or state district
ilsolarmap.com#/?status=pla...
☀️ 2,286 MW of operating solar (blue)
🚧 5,625 KW planned or under construction (purple)
Explore by tract, county, place or state district
ilsolarmap.com#/?status=pla...
ILSolarMap.com has been updated through April. Illinois now has 2,286MW (up by 110MW since January) across 61,909 projects.
May 2, 2024 at 8:53 PM
ILSolarMap.com has been updated through April. Illinois now has 2,286MW (up by 110MW since January) across 61,909 projects.
ilsolarmap.com has been updated!
IL is now has 2,176 megawatts of solar, up from 1,800 in November. A 20% increase!
IL is now has 2,176 megawatts of solar, up from 1,800 in November. A 20% increase!
February 7, 2024 at 3:39 PM
ilsolarmap.com has been updated!
IL is now has 2,176 megawatts of solar, up from 1,800 in November. A 20% increase!
IL is now has 2,176 megawatts of solar, up from 1,800 in November. A 20% increase!
Kicking off the last #chihacknight of 2023 with Amethyst Davis from the Harvey World Harold chihacknight.org/events/2023/...
December 13, 2023 at 1:11 AM
Kicking off the last #chihacknight of 2023 with Amethyst Davis from the Harvey World Harold chihacknight.org/events/2023/...
Another fun fact: the top 5 State Senate Districts and top 5 State House Districts for solar installed are all represented by Republicans #cejaworks
September 18, 2023 at 6:30 PM
Another fun fact: the top 5 State Senate Districts and top 5 State House Districts for solar installed are all represented by Republicans #cejaworks
Fun fact: the highest concentration of small solar projects in the state is in Northwest Illinois.
Solar energy generated in Northwest Illinois is deliverable to customers in Chicago and the relative affordability of land there makes it a great economic opportunity. #cejaworks
Solar energy generated in Northwest Illinois is deliverable to customers in Chicago and the relative affordability of land there makes it a great economic opportunity. #cejaworks
September 18, 2023 at 6:29 PM
Fun fact: the highest concentration of small solar projects in the state is in Northwest Illinois.
Solar energy generated in Northwest Illinois is deliverable to customers in Chicago and the relative affordability of land there makes it a great economic opportunity. #cejaworks
Solar energy generated in Northwest Illinois is deliverable to customers in Chicago and the relative affordability of land there makes it a great economic opportunity. #cejaworks
Since 2016, the amount of solar installed in Illinois has increased 40-fold #cejaworks
September 18, 2023 at 6:29 PM
Since 2016, the amount of solar installed in Illinois has increased 40-fold #cejaworks
There are nearly 35,000 solar projects throughout the state, ranging in size from a single 0.6 kW solar panel to the 200,000 kW (200 megawatts) Prairie Wolf Solar project in Coles County #cejaworks
September 18, 2023 at 6:28 PM
There are nearly 35,000 solar projects throughout the state, ranging in size from a single 0.6 kW solar panel to the 200,000 kW (200 megawatts) Prairie Wolf Solar project in Coles County #cejaworks
As of May 2023, at least 1.62mw of operating solar capacity have been installed in the State of Illinois
For comparison, Prairie State, the State’s largest coal plant, is 1.63mw, illustrating just how far we've come in a few years, but still how far we have to go #cejaworks
For comparison, Prairie State, the State’s largest coal plant, is 1.63mw, illustrating just how far we've come in a few years, but still how far we have to go #cejaworks
September 18, 2023 at 6:28 PM
As of May 2023, at least 1.62mw of operating solar capacity have been installed in the State of Illinois
For comparison, Prairie State, the State’s largest coal plant, is 1.63mw, illustrating just how far we've come in a few years, but still how far we have to go #cejaworks
For comparison, Prairie State, the State’s largest coal plant, is 1.63mw, illustrating just how far we've come in a few years, but still how far we have to go #cejaworks
Chicago Councilmatic now has much improved meeting pages!
Video archives are embedded if available and the agenda now links directly to ordinances and list out sponsors.
Here's how it looks for July's last Chicago City Council meeting: chicago.councilmatic.org/event/city-c...
Video archives are embedded if available and the agenda now links directly to ordinances and list out sponsors.
Here's how it looks for July's last Chicago City Council meeting: chicago.councilmatic.org/event/city-c...
September 11, 2023 at 9:46 PM
Chicago Councilmatic now has much improved meeting pages!
Video archives are embedded if available and the agenda now links directly to ordinances and list out sponsors.
Here's how it looks for July's last Chicago City Council meeting: chicago.councilmatic.org/event/city-c...
Video archives are embedded if available and the agenda now links directly to ordinances and list out sponsors.
Here's how it looks for July's last Chicago City Council meeting: chicago.councilmatic.org/event/city-c...
Kicking off #chihacknight no 548 with Preeti Shankar and Paul Esling from the Center for Neighborhood Technology (CNT)
July 12, 2023 at 12:04 AM
Kicking off #chihacknight no 548 with Preeti Shankar and Paul Esling from the Center for Neighborhood Technology (CNT)