Re: FW: LS1 Solar
Jeanne,
Thank you for your time this afternoon and please forward this message to anyone on your team that should have a copy.
TIC will perform a preliminary feasibility study of solar energy production on L.S.I Island. We are familiar with the challenges of designing and building solar in the Caribbean and have developed cost effective solutions to meet these challenges.
Our initial thoughts are that a solar PV plant sized to meet the entire needs of the island would most likely be the best solution. This will require that we know as much about the electricity consumption and generation capabilities as possible. Please, provide us with 12-24 months of VIWAPA electricity bills and if possible any interval or time-of-use data on consumption. This data may be available from strip charts or data logging of the generators when they were running.
We would also like to have the name plate data of the generators and a single line diagram of the electrical system.
Also, please indicate on a map where we can locate the solar array and battery station.
Thank you and have a Happy Thanksgiving,
Jeff
Jeff Ottaviano
Toshiba International Corporation
200 Dryden Road, Suite 3400
Dresher, PA 19025
http://www.toshiba.co=jp/sis/en/solar/index.htm http://www.to=hiba.co.jp/sis/en/solar/index.htm
Jeff,
Thanks for the follow up. We will compile the necessary information requests.
Do you prefer a copy of the electricity bills or an excel history of readings and usage?
Happy Thanksgiving to all.
Jeanne
Jeanne,
An excel history will be fine for now, but can you at least send us the latest copy of a bill so that we can see if there are any time-of-use and/or demand charges. That type of data helps in our equipment sizing calculations.
Thanks again,
Jeff
Jeff Ottaviano
Toshiba International Corporation
200 Dryden Road, Suite 3400
Dresher, PA 1902=
http://www.toshiba.c=.jp/sis/en/solar/index.htm http://www.t=shiba.co.jp/sis/en/solar/index.htm
Jeff,
Please see attached; WAPA bills, schematic of the electrical system and the generator specs. I will follow with additional requests.
Jeff,
We are trying to determine if there is significant line loss between the meter on St. Thomas and the transformer on LSJ. One suggestion was that we purchase and install an industrial grade current transformer (CT) monitor at the main feeder capable, to meter the power in real time and send it to a web server for review.
What do you think about this idea?
Thanks,
Jeanne
Jeff,
The transformer for LSJ is located on the Island and owned by LSJ. This raises the questions:
- What is the loss at the transformer?
- Do we need a time and use study?
- Can you install the power logger?
Also let me know what day works for you and your team during the week of Jan 7-11 to visit the Island and I will coordinate setting it up.
Thanks,
Jeanne
Jeanne,
That would be one way to do it but if you know the cable size, length and material a calculation can be done quite accurately. You could also install a temporary power logger over a week or so and then compare that to the utility meter.
If the cable was sized properly it should be less than 2% losses. We have an excellent electrical contractor in St. Croix that has been working for Hovensa for many years. Let me know if you want me to introduce him.
Jeff
Thanks
Jeanné,
I'll look into getting a power meter. We would install it on the 480 V side of the xfmr to include the line and xfmr losses in the readings. We would compare the temporary power meter to the utility meter, thus it would be a time and use study. This would be very valuable information to have to properly size the solar and energy storage system.
I should know my schedule for the week of January 7-11 by next week.
Jeff
Jeanne,
We've located a power meter on St. Thomas that we can use. We can install it when we come down in January.
Jeff
Jeff Ottaviano
Toshiba International Corporation
200 Dryden Road, Suite 3400
Dresher, PA 19025
Jeff,
Hope the holidays are going well. Can you give me an update on the solar proposal for LSJ and the day (Jan 7 -11) you want to do a site visit on the Island?
Thanks,
Jeanne
Jeanne,
I am still on vacation and apologize, but I was waiting to contact you after I had my other meeting scheduled. I was trying to set up a permitting meeting with DPNR, but never got a response to my request. At this point I do not think I will be making it the week of January 7-11. I have worked up preliminary numbers and have forwarded them to our business development people. I expect they will be setting up a call after the New Year.
Happy New Year,
Jeff
I still have not heard from Toshiba with the proposal. Do you want me to email them again requesting status or wait until they call?
yes, email them
