Financing and Incentives

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jmedrado
Understanding the net present value

Hi,
My name is Jessica Medrado and I am a grad student at UCSD. I am currently learning SAM to use in the economical analysis of a solar water heater and my question is as follows. Consider input values that results in a negative net present value. When keeping the same input, but decreasing the debt fraction, the net present value becomes more negative. I was expecting that decreasing the debt would help to improve the net present value. Could you help me to understand that?

1 post / 0 new
Ismael
LCOE inconsistency, Cash Flow

Hi, I'm simulating a 100 MW Power Tower CSP plant (without TES). In the "Summary" of results, SAM tells me that the resulting nominal LCOE is 26.02 cents / kwh, which coincides with the information shown in the "Cash Flow" tab. However, if I check the detail of the cash flow with the "Send to Excel with Equations" tool, it turns out that the nominal LCOE shown is 29.44 cents / kwh.

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see3d
Clearing out excess in one month?

Is there a workaround to force SAM to clear out all the accumulated net metering credits in May? I could even type in the actual amount of the excess in May from the first pass simulation. Duke Energy NC, resets the accumulated excess on May 31. If I can clear out the excess for that month, then the financial calculations can reflect that reality.

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ccronin06
Third Party Owned PV System

Hi
I am using SAM to model a PV system installed on a multi-apartment building. I want to evaluate the business case from the perspective of a external third party owner (i.e. invests and operates system, selling generated electricity onsite to residents).

I will use the electricity load of the building as an input, however any excess electricity not consumed on site will be sold at a different rate (i.e. wholesale or feed-in rate).

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BandGap1.1eV
Solar MAssachusetts Renewable Target (SMART)

Does anyone have experience utilizing SAM for the new SMART Massachusetts declining block incentive program? It's a foolishly complicated set of calculations for both behind the meter and stand-alone systems. The state has not developed their own calculator to my knowledge.

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Kenny Dinh
Rules to determine depreciation allocation

I'm using SAM application version 2017-9-5-r4.
I created a project that has Photovoltaic (detailed) with PPA partnership flip with debt (utility). The project was populated with default values.

Principal: $28,365,982.00
Interest: $283,659.81
Financing Cost: $567,319.63, etc.

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stef
error on commercial.xls sheet ?

Hello,
Thank you so much for your work. There isn't error on the D178 cell? it's compute white cell.

https://sam.nrel.gov/financial commercial .xls

regards
stef

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bukhary
Economic Analysis

Hi,
I am running an economic analysis for commercial photovoltaics. My payback period is NaN meaning payback period is longer than the analysis period. but net present value is positive. These are conflicting results. Am I making a mistake. Please let me know.
Thanks

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mcs41
Why is the All-equity option more expensive than debt options?

Hello,
I am having some trouble with explaining why the All-equity solar arrays would have a higher levelized cost of energy than projects with debt. Those are the results that I have found and I have read the same conclusion in some of NREL's published work that uses SAM (See reference below). It seems like the All-equity costs would be cheaper than the debt options.

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Godwin Ndisengei
Residential Solar Lease

Just installed SAM to hopefully support my financial modeling for a zero-down solar portfolio - tax equity finance with partnership flip... Can SAM model this, can someone kindly assist with most efficient way to go about this in SAM.

Some key details...

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