Alaska Energy Network

network of Alaska energy enthusiasts & experts

Ingemar Mathiasson
  • Male
  • Ambler, AK
  • United States
Share
Share on Twitter
Share on Facebook

Ingemar Mathiasson's Groups

 

Ingemar Mathiasson's Page

Latest Activity

May 3
Hi Don I am using an Outback FM-60 Mppt,, It allows me to connect strings of modules with higher Voltage rating Up to 150 Volts This saves on the wirering.. There is a small continues draw of a few mA for the controller' But I have not seen any…
March 17
HI, Does anyone have any hands on experience with PWM and MPPT solar controllers? Would you share what your experience has been and the pros and cons that you have discovered for each type of controller. Thanks
March 17
Hi all does anyone know what kind of panels the PWatts calculator is based on ? What kind of efficiency of the panels ? I
March 12
Hi All, There is a test being done by the cold climate housing research found http://cchrc.org/solar-power . If you take the 2009 PV production data and compare it to the information calculated by NREL's PV Watts calculator, actual electricity prod…
March 11
Hi all, To follow are the theoritical output of an solar array and the actual measured output of the array. Based on 6 months of data the theoritical output is 30% higher than actual measured output. What has other peoples experience been? Actual…
March 10
Hi just ran the numbers using PV Watts. http://rredc.nrel.gov/solar/calculators/PVWATTS/version1/US/code/pvwattsv1.cgi The production estimate used for the Noatak water plant closlely follows the expected output. Does anyone have a feel for how actu…
March 10
March 10
We will see... There is definitely a very wide margin in how much solar energy we can get in each location. The different climate and weather is the big factor from just calculations. I think the only way to do it somewhat accurately would be to r…
March 10
Hi Ingemar, I can definately see why there is a difference in our opinion regarding the value of solar energy. If I understand the answer of 1167 KWh correctly, this is the average expected electrical energy produced by the array monthly. So total…
March 10
Hi Don 1. Cost of Commercial power @ $ 0.89/Kwh before PCE.. 2. Average Consumption 1500 Kwh/month 3. expected averaged out output of solar 1167Kwh This is a 2 way tracking array with derate factor of 0.819 on the inverters.. Now I do have the c…
March 10
Hi Ingemar, could you provide the following information for the Noatak waterplant example: 1) Cost of commercial power. 2) Annual consumption of WaterPlant broken down by month. 3) Expected output of 10 KW solar array in Noatak broken down by month.
March 10
Yes we do need real data from well installed solar systems. That is why I supplied the actual data below. Is any one collecting this data now? There is flat plate collector data for Fairbanks and Anchorage but that is all the information I have seen…
March 9
My calculations shows that it works up here.. If a 10Kw solar-PV array was installed in Noatak to offset the cost of electricity for the Waterplant then the following is true. Noatak shows savings of $ 11,729.00/ year (City $ 2,400.00, State $ 9,3…
March 9
I'd like to see the Ruby data...I am not sure that the church has the best installation accomplished...when I was last there, there were serious grid errors encountered and the system was down a significant amt. of time. I also question the angle of…
March 9
WE all need to collect more data on Solar PV and Solar Thermal in Alaska...real numbers are scarce. We also need to ensure that the installations are technically appropriate and done well. I believe performance is seriously under-rated.
March 9

Comment Wall (1 comment)

You need to be a member of Alaska Energy Network to add comments!

Join Alaska Energy Network

At 4:40pm on March 9, 2010, Martin Leonard III said…
Hello folks,

I'd like to see the Ruby data...I am not sure that the church has the best installation accomplished...when I was there last there were serious grid errors encountered and the system was done a significant time. I also question the angle of incidence for those peak months in the spring given the positioning of the array.
 
 
 

© 2010   Created by Markus Mager.   Powered by .

Badges  |  Report an Issue  |  Terms of Service

Sign in to chat!