Make Iteration Structure

[Ethan-Russell]

No description provided.

[Ethan-Russell]

Make 2 examples to prove functionality of this interface:

• Simple, just iterates once for the config file
• More complex, does a check of some condition to see if it should iterate, changes something between iterations.

[Ethan-Russell]

resolved by #53

[Ethan-Russell]

The only remaining task would be:

• Make a sequential iteration.

[Ethan-Russell]

Sequential Simulations:

We need to save a new gen sheet. This should include:

• Original values for most columns (not scaled by hourly/yearly adjustments)
• Retirements
• Keep pcap_built
• Retire any capacity below a threshold
• Keep generators that will have been retired with unpaid CAPEX costs.

In MATLAB E4ST, we are using accrual accounting rather than cash accounting.

CAPEX could make sense to do cash accounting. FOM, VOM, and fuel costs are expenses incurred in each year.

We would need to be very careful in multi-year CAPEX and ITC accounting - we couldn't interpolate, but would have to do some sort of cost-averaging across years.

Likewise if we do build rates, we will need to change them depending on how many years we do between simulations.

There is an advantage of accrual accounting for CAPEX - we stop simulating the future. If we count the cost of building new things in the year that they happen, we would be showing the investment cost up front, when much of the benefit is years into the future.

Another idea from Dan - calculate investments as a lump sum. Then apportion the lump-sum investment cost (and lump-sum subsidies) over the years, possibly using a depreciation rate.

[Ethan-Russell]

Leaning towards going forward with accrual accounting to avoid the need to do excessive conversions. The optimization requires us to use accrual accounting CAPEX numbers already. As long as we are doing accrual in our reporting, we need to track past capex independently from what retires.

Would be nice to include lump-sum accounting for CAPEX as an option for results.

[Ethan-Russell]

Also FOM should be changed to be $/MW/yr