Hi Paul.
Apparently there was a problem with the previous message, because you have not answered me, I will send it to you again, and I have more questions.
Previous message:
So far the only pdf file I can see is the SWH one, I still can't see the photovoltaic and wind files.
I want to consult you about electricity rates:
- For the minimum charges of money, it happens to me that the net present value changes a lot if I put as a value, both monthly and annually, the minimum monthly energy charge multiplied by the rate of purchase of energy from the grid. As an example I am sending you my work, and in the part of the photovoltaic analysis you can see the difference between putting $ 0 and $ 150 monthly, and $ 0 and $ 1800 annually, which corresponds to what I mentioned (835.38 kWh corresponding to the energy load of November, multiplied by $ 0.18 / kWh for one month)
- I am following the "net energy metering with $ credits" format to calculate energy charges, in order to sell what I have surplus energy to the grid and thus be able to balance the net present value, but I have doubts about the management of the periods, tiers, purchase and sale prices. Here in my country the purchase price of electricity from the grid is $ 0.18 according to various sources, and so far I have not found information about the prices of selling energy to the grid. Is there a standard or efficient format that can be followed? All this I seek with the purpose of positively balancing my net present value and that the project is viable. I have seen the format that comes by default when starting a new project in SAM, but besides that I would not know how to apply another, since the regulations depend on who carries out the project, or not?
New message:
- I have a question about what the K factor of the weibull distribution means, what does it indicate specifically? It seems to me that this information is in the technical manual of the wind system, but it cannot be seen.
- In the photovoltaic summary, in the metric table, there are 2 values of the batteries that I need to understand (battery roundtrip efficiency and battery charge energy from system), what do they indicate?
- In the wind summary, in the table of metrics, there is the value "p90 energy", what does it indicate?
Best regards.
