Eduardo Pelegri-Llopart
pelegri.bsky.social
Eduardo Pelegri-Llopart
@pelegri.bsky.social
Ex-software. Energy Transition. Consumer-owned energy assets. Immigrant. Californian. I write at https://pelegri.substack.com #EnergySky
AB-825 enables the creation of an Independent Regional Organization for West-wide electrical markets

SB-254 is a very ambitious bill that addresses short-term, medium-term and long-term issues in our electrical grid
October 16, 2025 at 10:11 PM
A wrote my position on this bill back in April. I think it is still relevant if you are interested in the topic

pelegri.substack.com/p/electrical...
Electrical Markets in the West and SB-540
An innovative solution to a long running challenge
pelegri.substack.com
September 21, 2025 at 2:46 PM
The California legislature provides a bill analysis before votes. The one for the final vote on SB-254 is below. Its long because the bill is so ambitious. It is amazing that this passed

leginfo.legislature.ca.gov/faces/billAn...
leginfo.legislature.ca.gov
September 21, 2025 at 2:44 PM
It's great, isn't it?

I can see several benefits. It may simplify the installation (maybe just 120V?), but it can help manage the load, both as max load and as time-shifting, to hep in tariffs with dynamic rates (or strong TOU), and those with capacity charges

Similar to a Copper stove
September 21, 2025 at 4:21 AM
There were also biDirectional chargers from Enphase and Sigenergy, news from EG4, and others...

If interested, check out my writeup at pelegri.substack.com/p/a-new-msa-...
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
September 15, 2025 at 8:45 PM
Mail from @350baaction.bsky.social claimed that SB-540 was a gut-and-replace bill. SB-540 has been debated in many forums, it has gone through the normal process, and there are no recent changes

Check at leginfo.legislature.ca.gov/faces/billVe...
leginfo.legislature.ca.gov
September 9, 2025 at 8:56 PM
@luigisemenzato.bsky.social did you see my writeup on modern battery systems? My take is that they are creating a micro-grid in our houses (this may be US-specific - my take leverages that we have relatively easy to access meters where you can inject a battery)

pelegri.substack.com/p/modern-res...
Modern Residential Batteries - Summer 2025
Batteries, the core of the House Microgrid
pelegri.substack.com
September 6, 2025 at 1:55 AM
I want to write a post capturing what I understand about the different approaches to Load Management. For quite a while it was all pretty fuzzy to me

I write at pelegri.substack.com mostly as a way to force me to understand the topics I care about
Musings from California | Eduardo Pelegri-Llopart | Substack
Commentary, News and Resources on our Energy Transition with some bias towards USA/California/SF Bay Area. Click to read Musings from California, by Eduardo Pelegri-Llopart, a Substack publication wit...
pelegri.substack.com
September 6, 2025 at 1:52 AM
A modern battery that also does load management and that has those appliances connected/managed can do what you suggest if it needs to

The ideal is to be able to do that when needed - long spikes - but even a relatively small battery by itself can just “smooth out” the spike
September 5, 2025 at 2:26 AM
A Dybamic Price mechanism is continuously compensating the owner of the resource directly. The challenge is finding a tariff that is understandable and that compensates well the homeowners. Both in managing the load and in exports

IMHO, the enabler for Dybamic Rates are batteries and automation
September 5, 2025 at 2:22 AM
So they provide little compensation and are called when consumers are most likely to want the resources

Another problem is that they pay little to the owner of the resource, the consumer

And these make it harder to convince consumers to sign for the programs
September 5, 2025 at 2:22 AM
“VPP” is a fuzzy term. Ed is referring to a program like DGGS where aggregators are reacting to high demand events by managing resources they control

There are several problems with those. One is that they are event-driven, not continuous. They are triggered by high load events…
September 5, 2025 at 2:22 AM
I have guesses about all of the above but I'd love to get real data / experience, even if only anecdotal

TIA
September 4, 2025 at 8:33 PM
Compared to California's CalFUSE proposal, the Spanish tariffs are so much simpler to understand and reason about. I'm looking into
* public adoption / reaction
* impact on households bills
* concerns about RTP giving preferential treatment to specific classes of customers
September 4, 2025 at 8:33 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
August 28, 2025 at 4:13 PM
Thanks, this is useful to know.
August 15, 2025 at 7:39 PM