Eduardo Pelegri-Llopart
@pelegri.bsky.social
Ex-software. Energy Transition. Consumer-owned energy assets. Immigrant. Californian. I write at https://pelegri.substack.com #EnergySky
Dynamic Rates were promised in 2001
pelegri.substack.com/p/dynamic-ra...
Looking at the rates also shows improvements on the CAISO grid from 2023 through 2024 into 2025
pelegri.substack.com/p/dynamic-ra...
Looking at the rates also shows improvements on the CAISO grid from 2023 through 2024 into 2025
August 28, 2025 at 4:13 PM
Dynamic Rates were promised in 2001
pelegri.substack.com/p/dynamic-ra...
Looking at the rates also shows improvements on the CAISO grid from 2023 through 2024 into 2025
pelegri.substack.com/p/dynamic-ra...
Looking at the rates also shows improvements on the CAISO grid from 2023 through 2024 into 2025
100% agree on rate design. The current TOU periods are counter to GHG reduction. Rate a 1am, when the CA grid is dirtiest, should not be lower than rates at 4pm, when solar is still prevalent
EV2-A periods
Off-Peak: midnight-3pm
Peak: 4pm-9pm
Part Peak: else
Here is the GHG for yesterday
EV2-A periods
Off-Peak: midnight-3pm
Peak: 4pm-9pm
Part Peak: else
Here is the GHG for yesterday
May 9, 2025 at 4:51 PM
100% agree on rate design. The current TOU periods are counter to GHG reduction. Rate a 1am, when the CA grid is dirtiest, should not be lower than rates at 4pm, when solar is still prevalent
EV2-A periods
Off-Peak: midnight-3pm
Peak: 4pm-9pm
Part Peak: else
Here is the GHG for yesterday
EV2-A periods
Off-Peak: midnight-3pm
Peak: 4pm-9pm
Part Peak: else
Here is the GHG for yesterday
Ha! I had no idea that Meter Collars had been around for a long time. Just bumped into this from Marwell Corp from 1979.
marwellcorp.com
Marwell manufactures the Renewable Meter Adaptor for SDGE.
I am writing a blog post on collars. It's fun content
#energysky
marwellcorp.com
Marwell manufactures the Renewable Meter Adaptor for SDGE.
I am writing a blog post on collars. It's fun content
#energysky
April 30, 2025 at 12:32 AM
Ha! I had no idea that Meter Collars had been around for a long time. Just bumped into this from Marwell Corp from 1979.
marwellcorp.com
Marwell manufactures the Renewable Meter Adaptor for SDGE.
I am writing a blog post on collars. It's fun content
#energysky
marwellcorp.com
Marwell manufactures the Renewable Meter Adaptor for SDGE.
I am writing a blog post on collars. It's fun content
#energysky
April 29, 2025 at 1:34 PM
Three generations of 2x4s.
April 26, 2025 at 3:54 PM
Three generations of 2x4s.
I'm attending (remotely) my first CPUC workshop. This is on scenarios for High DER adoption. Current presenter is from Minnesota PUC on their own plans (Xcell dominated).
Good experience attending so far.
Unravelling the collection of proceedings at CPUC site was hardest part
Good experience attending so far.
Unravelling the collection of proceedings at CPUC site was hardest part
April 22, 2025 at 4:48 PM
I'm attending (remotely) my first CPUC workshop. This is on scenarios for High DER adoption. Current presenter is from Minnesota PUC on their own plans (Xcell dominated).
Good experience attending so far.
Unravelling the collection of proceedings at CPUC site was hardest part
Good experience attending so far.
Unravelling the collection of proceedings at CPUC site was hardest part
Here is the setup: connect directly to the meter collar, then the IQ Combiner (does not need a controller, that's done in the collar), then the battery. Neat.
Collars are a great invention. Kudos to Span and everybody jumping on that idea.
Collars are a great invention. Kudos to Span and everybody jumping on that idea.
April 20, 2025 at 11:31 PM
Here is the setup: connect directly to the meter collar, then the IQ Combiner (does not need a controller, that's done in the collar), then the battery. Neat.
Collars are a great invention. Kudos to Span and everybody jumping on that idea.
Collars are a great invention. Kudos to Span and everybody jumping on that idea.
The workshop included introductory remarks from Comms'r McAllister, Background & Context from CEC staff, and prezos on the experience in Denmark and on the role of real estate agents.
The Danish prezo was great and inspiring; see this graph showing how house stock has improved over time
The Danish prezo was great and inspiring; see this graph showing how house stock has improved over time
March 17, 2025 at 7:53 PM
The workshop included introductory remarks from Comms'r McAllister, Background & Context from CEC staff, and prezos on the experience in Denmark and on the role of real estate agents.
The Danish prezo was great and inspiring; see this graph showing how house stock has improved over time
The Danish prezo was great and inspiring; see this graph showing how house stock has improved over time
Home energy labels are pervasive in Europe but not widely adopted in the US & California. @calenergy.bsky.social has started to update its HERS system, starting w/ stakeholder input & workshops. I leveraged their 1st workshop to write on the topic
pelegri.substack.com/p/home-energ...
pelegri.substack.com/p/home-energ...
March 17, 2025 at 7:53 PM
Home energy labels are pervasive in Europe but not widely adopted in the US & California. @calenergy.bsky.social has started to update its HERS system, starting w/ stakeholder input & workshops. I leveraged their 1st workshop to write on the topic
pelegri.substack.com/p/home-energ...
pelegri.substack.com/p/home-energ...
And an aerial photo of the San Bruno Aquatics Center. I believe this is the largest project under GovPV; they have many more, some much smaller, all around local government.
March 10, 2025 at 6:03 PM
And an aerial photo of the San Bruno Aquatics Center. I believe this is the largest project under GovPV; they have many more, some much smaller, all around local government.
GovPV is part of 3 efforts within the Distributed Resources category at PCE.
The GovPV started focused on adding rooftop solar; it is expanding by adding storage, and more sites.
Other projects are a VPP effort, and restarting residential Solar+Battery
The GovPV started focused on adding rooftop solar; it is expanding by adding storage, and more sites.
Other projects are a VPP effort, and restarting residential Solar+Battery
March 10, 2025 at 6:03 PM
GovPV is part of 3 efforts within the Distributed Resources category at PCE.
The GovPV started focused on adding rooftop solar; it is expanding by adding storage, and more sites.
Other projects are a VPP effort, and restarting residential Solar+Battery
The GovPV started focused on adding rooftop solar; it is expanding by adding storage, and more sites.
Other projects are a VPP effort, and restarting residential Solar+Battery
This is a French Energy Certificate following European regulations. I'd like to learn and write about similar programs around the US. So far I have pointers to Portland OR, Berkeley, Austin, Vermont, Columbia MO. What other programs I am missing?
Thanks,
#energysky
Thanks,
#energysky
February 25, 2025 at 4:05 AM
This is a French Energy Certificate following European regulations. I'd like to learn and write about similar programs around the US. So far I have pointers to Portland OR, Berkeley, Austin, Vermont, Columbia MO. What other programs I am missing?
Thanks,
#energysky
Thanks,
#energysky
Casio.com, the official site for the California ISO is full of good stuff. Here one new to me: CO2 emissions. Below is yesterday's graph
A reminder to try to import electricity at the "right time". And if I had a battery I could time-shift the green electricity from my rooftop
#energysky
A reminder to try to import electricity at the "right time". And if I had a battery I could time-shift the green electricity from my rooftop
#energysky
February 12, 2025 at 3:44 AM
Casio.com, the official site for the California ISO is full of good stuff. Here one new to me: CO2 emissions. Below is yesterday's graph
A reminder to try to import electricity at the "right time". And if I had a battery I could time-shift the green electricity from my rooftop
#energysky
A reminder to try to import electricity at the "right time". And if I had a battery I could time-shift the green electricity from my rooftop
#energysky
Below are my monthly EV2-A electricity rates since Dec '21. Top 3 are the full rate: Peak, PartialPeak and OffPeak. Bottom 3 are the generation portion
Generation is from PCE our CCA, less than 40%. They do a good job controlling cost
Total minus Generation is "Delivery" from PG&E...
#energysky
Generation is from PCE our CCA, less than 40%. They do a good job controlling cost
Total minus Generation is "Delivery" from PG&E...
#energysky
February 10, 2025 at 2:52 PM
Below are my monthly EV2-A electricity rates since Dec '21. Top 3 are the full rate: Peak, PartialPeak and OffPeak. Bottom 3 are the generation portion
Generation is from PCE our CCA, less than 40%. They do a good job controlling cost
Total minus Generation is "Delivery" from PG&E...
#energysky
Generation is from PCE our CCA, less than 40%. They do a good job controlling cost
Total minus Generation is "Delivery" from PG&E...
#energysky
The category labeled imports covers energy from out of state. The source of that energy is harder to track and it can include hydro from the north, wind from the east and also gas. California has a deep oceanic coast, we are exploring floating wind turbines
February 9, 2025 at 2:32 PM
The category labeled imports covers energy from out of state. The source of that energy is harder to track and it can include hydro from the north, wind from the east and also gas. California has a deep oceanic coast, we are exploring floating wind turbines
But, separate, what is the purpose of the public comment page on proceedings? Where is that public comment captured?
(And thanks for answering questions; I appreciate it)
(And thanks for answering questions; I appreciate it)
January 21, 2025 at 5:53 PM
But, separate, what is the purpose of the public comment page on proceedings? Where is that public comment captured?
(And thanks for answering questions; I appreciate it)
(And thanks for answering questions; I appreciate it)
OK, I'll invest some time
January 21, 2025 at 5:41 PM
OK, I'll invest some time
Our house exported 2.6GWh in 2024. Net imports on January, February, November and December; net exports on the rest of the year. 8.8 kW of PV, no battery. Our main load is EV charging. In 2025 we will focus on reducing GHG through better scheduling. A battery would help, of course.
January 2, 2025 at 2:12 PM
Our house exported 2.6GWh in 2024. Net imports on January, February, November and December; net exports on the rest of the year. 8.8 kW of PV, no battery. Our main load is EV charging. In 2025 we will focus on reducing GHG through better scheduling. A battery would help, of course.
A message from Seth @ EnergyHub in the Dec 2 Catalyst podcast
"if you're in California and you're a regulator, the rest of the country exists. And if you look at what's going on, there are lots of examples of how you could be doing this a lot better"
podcasts.apple.com/us/podcast/c...
#EnergysSky
"if you're in California and you're a regulator, the rest of the country exists. And if you look at what's going on, there are lots of examples of how you could be doing this a lot better"
podcasts.apple.com/us/podcast/c...
#EnergysSky
December 6, 2024 at 2:21 AM
A message from Seth @ EnergyHub in the Dec 2 Catalyst podcast
"if you're in California and you're a regulator, the rest of the country exists. And if you look at what's going on, there are lots of examples of how you could be doing this a lot better"
podcasts.apple.com/us/podcast/c...
#EnergysSky
"if you're in California and you're a regulator, the rest of the country exists. And if you look at what's going on, there are lots of examples of how you could be doing this a lot better"
podcasts.apple.com/us/podcast/c...
#EnergysSky
Kraken came to mind but I am fairly ignorant about this space. I am looking forward to read the docs to learn.
Pg 4-17 (aka 32) of the Workspapers doc has a table w/ "NA Utilities". This is looking backwards. I'd like to see what a modern utility uses, or what the adventurous ones are considering.
Pg 4-17 (aka 32) of the Workspapers doc has a table w/ "NA Utilities". This is looking backwards. I'd like to see what a modern utility uses, or what the adventurous ones are considering.
December 5, 2024 at 1:02 AM
Kraken came to mind but I am fairly ignorant about this space. I am looking forward to read the docs to learn.
Pg 4-17 (aka 32) of the Workspapers doc has a table w/ "NA Utilities". This is looking backwards. I'd like to see what a modern utility uses, or what the adventurous ones are considering.
Pg 4-17 (aka 32) of the Workspapers doc has a table w/ "NA Utilities". This is looking backwards. I'd like to see what a modern utility uses, or what the adventurous ones are considering.
In the arboretum in Golden Gate Park
December 2, 2024 at 5:13 AM
In the arboretum in Golden Gate Park
A snapshot of our house electricity load this morning. We have a 3 zone heat pump HVAC. Waking up and turning some units to "automatic", and then turning to "minimum speed". The units go through some dance but the change in consumption is very noticeable. /1
November 28, 2024 at 5:25 PM
A snapshot of our house electricity load this morning. We have a 3 zone heat pump HVAC. Waking up and turning some units to "automatic", and then turning to "minimum speed". The units go through some dance but the change in consumption is very noticeable. /1
