Low Cost Coil Economyzer Test for Tyco Kilovac EV200A1ANA

I am still in search of an economizer for my new Tyco Kilovac EV200A1ANA

Last night, I tested different resistor values along with this 4700uF capacitor - I got for my Grid Tie Inverter repair previously - and found that the simple economizer described in this DIY Electric Car thread


seems to work . I could not find a resistor that works so I used this air dryer resistive wire again - alreday used on my mini bottom balancer - and cut a piece that was 10Ohms;

Closing the circuit bypassing the economizer, the relay closes and is using 3,5A

With the economizer, the contactor is closing and only 1A is going through the circuit - instead of 3,5A with no economizer -   

1A at 12V = 12W

I will have to try with 20Ohms and see if what it does ... The idea is to leave the relay closed using minimum current, thus minimum power

NEDAP - PowerRouter to use Lithium-ion batteries in 2013

Along with the release of their lastest 4.0 software version, NEDAP announced they will be using Lithium-ion (we do not know the exact chemistry) batteries for their Energy Storage Sytem called PowerRouter, in sometime in 2013






It had been based on Lead Acid / AGM Batteries since its creation and this move seams to be logical since we all know that lead acid life is not that good in terms of cycles and energy density. The move to Li-ion is a good thing, provided that no weird BMS stuff is deteriorating the cells ...





Source: NEDAP PowerRouter

Energy Storage: Crossing the Chasm to Commercialization

A very interesting conference held by GreenTech Media about Energy Storage broadcasted yesterday from NYC



Moderator:
Zach Pollock - Smart Grid Analyst, Greentech Media

Speakers:
- William Acker - Executive Director, The New York Battery and Energy Storage Technology Consortium (NY-BEST)
- Johannes Rittershausen - Managing Director, Convergent Energy + Power
- Valerio De Angelis - Executive Director, CUNY Energy Institute

Published on Feb 6, 2013

Electricity is unlike any other commodity in that it must be consumed the moment it is produced and at any given moment supply must be rebalanced to meet demand. However, energy storage has the potential to change this paradigm.

At the grid-scale level, effective storage technology can shift and firm dispatch of energy generated from renewable sources such as wind and solar, defer billion dollar investments in transmission upgrades, as well as provide key grid support services. On the distribution grid, storage can provide voltage support services that enable higher penetrations of residential and commercial solar and electric vehicles in addition to providing backup power for communities and microgrids.

Despite the recent bankruptcies of several Lithium Ion battery manufacturers including A123 Systems, investment in the energy storage sector remains strong with several early stage companies such as Ambri (FKA Liquid Metal Battery Corporation), and LightSail having received venture capital funding in the past year. Recent regulatory measures such as FERC 755 have also provided a strong case for investment in storage technologies. Nevertheless, energy storage has been deployed at an incremental pace in the United States.

What factors (materials, technology, cost) are holding the industry back? Can the government help, or have we done too much already?
For this event, leaders working and studying the industry will dive into successes, failures and the steps which can be taken to expedite the commercialization and deployment of advanced storage technologies.



The panel discussion is a featured event of Solar One and NYC ACRE at NYU-Poly's cleantech panel discussion series, Clean Energy Connections.

Moderator:
Zach Pollock - Smart Grid Analyst, Greentech Media

Speakers:
- William Acker - Executive Director, The New York Battery and Energy Storage Technology Consortium (NY-BEST)
- Johannes Rittershausen - Managing Director, Convergent Energy + Power
- Valerio De Angelis - Executive Director, CUNY Energy Institute




Source: GreenTech Media

Oups, under 0 ....