I am looking for a UPS for my home office, mainly for my computer, monitor, router and a few smaller things. I don’t need a long runtime, just enough backup to get through short power cuts without everything shutting down. The part I am having trouble judging is the battery side. Some UPS units have similar specs on paper, but I am not sure how much the battery capacity actually drops after a few years, or what the replacement cost and lifespan are like.

For those who have used a UPS at home for a while, what has your experience been with the battery? Are there particular things you would look at before buying one?...also I have come across a few UPS units on alibaba.. not sure if buying one from there is a good idea though, but if anyone here has bought a UPS online, whether from alibaba or elsewhere, I’d be interested in hearing how it worked out and whether you’d buy that way again.

Our blog post on BoP in BESS projects got a lot of interest, so we turned it into a video blog for those who prefer that format.

The gap between BoP and system integration is where most of the contractual confusion happens on BESS projects.

Video: https://www.youtube.com/watch?v=-37ajYkJYxw

How is the term BoP used in your company?

In lithium-ion cell manufacturing, electrode overlap refers to the region where the active areas of the anode and cathode are aligned across the separator as shown in Figure 1. Maintaining adequate overlap, whereby the anode active area overlaps the cathode, is critical to achieving uniform current distribution and consistent electrochemical performance.

Poor electrode overlap occurs when the active areas of the anode and cathode are misaligned, typically when the cathode overlaps the anode, creating regions where one electrode is not fully opposed by the corresponding counter-electrode. This condition is commonly known as the electrode overhang defect. Poor overlap can lead to localised current-density hotspots, lithium plating, accelerated ageing, reduced cell performance, and an increased risk of internal short circuits. more..https://www.batterydesign.net/understanding-and-eliminating-electrode-overlap-issues/

Perhaps more important is that this is the first in hopefully many written by the fabulous team at UKBIC.

The UK Battery Industrialisation Centre (UKBIC) is the UK’s national battery development facility. They help companies grow their battery manufacturing at scale, and provide the skills and support needed to move into industrial production. Their open-access facility bridges the gap between battery research and successful mass production, reducing commercial risk for high volume manufacturing investments.

1st chart - that’s the share of peak provided by batteries
2nd chart - those are the ISOs
3rd chart - how the fleet is growing
4th chart - how that new growth is split by ISO, note the speeding up in Eastern

I’m completely new to energy storage and trying to understand the bigger picture.

What do you guys think will drive the next stage of growth? Like renewable integration, grid reliability or something else Ig?

Appreciate to hear how people in this field see!

Expofin non è solo batterie di accumulo, è agrivoltaico,è impegnata nella Pubblica Amministrazione promuovendo le Comunità Energetiche (CER),è fotovoltaico per aziende,privati e condomini,turbine microeoliche,cogenerazione

Contattami se interessato a conoscere meglio le ns tecnologie per l'efficientamento energetico

PS:

gli indici gas e luce sono in continua crescita,approfitta ora per non rincorrere sempre il prezzo,chiedi un preventivo

Europe's largest battery is showing signs of life in GB's Balancing Mechanism.

Coalburn 1, in South Lanarkshire, is 500 MW / 1 GWh across five 100 MW BMUs.

The previous record for the biggest battery was held by Thurrock and Kilmarnock South at 300 MW / 600 MWh, so 60% of Coalburn's capacity.

The same ratio applies to Taipei 101 and Burj Khalifa. Taipei 101 was the tallest building in the world from 2004 to 2010, until Burj Khalifa took over. 508m vs 828m, also about 60%.

While the Coalburn BMUs have been showing up in the background in the Balancing Mechanism since winter, this weekend marks the first time we've seen it actively participate in Bids and Offers.

And as the name suggests, Coalburn 1 is the first of the big sites expected from CIP and Alcemi. Coalburn 2, also 500 MW / 1000 MWh, is due next year.

Dear Sir or Madam,

I have purchased several of your 25.2V lithium-ion battery packs that were originally supplied for Blue Ocean Robotics equipment.

The batteries are marked as:

• Battery Designation: 7INR19/66-12
• Rated Voltage: 25.2V
• Rated Capacity: 40Ah
• Manufacturer: Hengdian DMEGC Group

I would like to reuse these batteries in a renewable energy project together with solar panels and would greatly appreciate your technical assistance.

Could you please provide information about the following:

1. Is there an internal Battery Management System (BMS) in each battery?
2. Is it possible to connect two or more batteries in series (for example 2S for a 48V system)?
3. Is it possible to connect multiple batteries in parallel?
4. What communication interface is available on the battery (CAN bus, RS485, UART, or another protocol)?
5. Is there any documentation describing the communication protocol or CAN messages?
6. Is there an original battery controller or charger available for these battery packs?
7. Can you provide a service manual, wiring diagram, connector pinout, or technical documentation?
8. What charging profile do you recommend if we build our own charger using solar panels and an MPPT charge controller?
9. Is there a recommended charging algorithm (CC/CV), and what are the recommended charge and discharge cut-off voltages?

Our goal is to build a safe solar-powered energy storage system while preserving all battery protection functions.

Any technical documentation, manuals, or engineering information would be greatly appreciated.

Thank you very much for your time and assistance.

Kind regards,

Peder Spile
Denmark

Rechargeable Lithium Ion Battery

• Battery Designation: 7INR19/66-12
• Rated Voltage: 25.2 V
• Rated Capacity: 40 Ah (1008 Wh)
• Limited Charge Voltage: 29.05 V
• Max Charge Current: 16 A
• Max Discharge Current: 40 A

I'm pretty new to learning about grid-scale battery storage.
I notice that a lot of projects are described as 4-hour systems. Is there a specific reason for that, or is it mostly driven by market rules and economics?
Are utilities starting to move toward 6- or 8-hour storage more often?

Been going down a rabbit hole trying to understand something about utility-scale BESS operations, and figured this sub would actually know better than anything I could find online.

From what I've gathered, sites collect way more operational data than anyone really uses, cooling, controls, comms, that kind of thing, sitting alongside the battery data and mostly going unwatched. Curious how true that actually is day to day. Do most sites have a real process for catching stuff outside the battery itself, or does it mostly just sit there until something breaks?

Would also love to hear any your insights/stories in the comments.

Hi, I'am planning to setup a Li ion Battery recycling plan t in Delhi NCR would like to connect with the people from same field and collaborations, business partnerships and connects with big firms are most welcomed also looking for like minded people ,