| Name | Units | Default Value | Validation Rule | Description |
|---|
| Allow Capacity Sharing | Yes/No | 0 | In (0,-1) | If regions/zones can share capacity reserves to meet requirements |
| Always Annualize Build Cost | - | 0 | In (0,-1) | If [Build Cost] is always annualized even when an option retires inside the horizon |
| At a Time | - | 0 | ≥0 | Number of years solved in each step of LT Plan |
| Block Count | - | 12 | ≥1 | Number of load duration curve blocks in each day/week/month. |
| Bridge Constraints | Yes/No | -1 | In (0,-1) | If LT Plan should bridge (decompose) constraints for subsequent simulation phases |
| Bridge Storage | Yes/No | -1 | In (0,-1) | If LT Plan should bridge (decompose) storage for subsequent simulation phases |
| Capacity Payments Enabled | Yes/No | 0 | In (0,-1) | If payments are made for generation capacity |
| Chronology | - | 2 | In (2,3,4) | Type of chronology used |
| Co-optimize Unit Commitment | Yes/No | 0 | In (0,-1) | If unit commitment is co-optimized rather than sequentially optimized with expansion |
| Compute Multi-area Reliability Indices | Yes/No | 0 | In (0,-1) | Master switch for computation of reliability indices LOLP, LOLE, etc across multiple areas. |
| Compute Reliability Indices | Yes/No | 0 | In (0,-1) | Master switch for computation of reliability indices LOLP, LOLE, etc. |
| Decomposition | - | 1 | ≥1 | Reduce the number of simulated periods by this factor in the first pass of a two-pass decomposition |
| Depreciation Method | - | 0 | In (0,1,2) | Depreciation method for computing annuities |
| Discount Period Type | - | 4 | In (1,2,3,4,6,7) | A unique discount factor and expansion decisions will be computed for each of these periods. |
| Discount Rate | % | 0 | ≥0 | Discount rate. |
| End Effects Method | - | 1 | In (0,1) | Method used to account for end of horizon effects |
| Inflation Rate | % | 0 | | Inflation rate used in depreciation calculations |
| Integerization Horizon | yr | -1 | ≥-1 | Number of years over which the expansion decisions are integerized |
| Last Block Count | - | 0 | ≥0 | Number of load duration curve blocks in the last load duration curve of the horizon, or zero if the same as [Block Count]. |
| LDC Pin Bottom | - | -1 | ≥-1 | Number of points at the bottom of the LDC that are pinned and cannot be aggregated into blocks. |
| LDC Pin Top | - | -1 | ≥-1 | Number of points at the top of the LDC that are pinned and cannot be aggregated into blocks. |
| LDC Slicing Method | - | 0 | In (0,1) | Method used to slice the LDC into blocks. |
| LDC Type | - | 3 | In (1,2,3,4,7) | One LDC is created for each period of this type in horizon. |
| LDC Weight a | - | 0 | | LDC weighting polynomial function 'a' parameter. |
| LDC Weight b | - | 1 | | LDC weighting polynomial function 'b' parameter. |
| LDC Weight c | - | 0 | | LDC weighting polynomial function 'c' parameter. |
| LDC Weight d | - | 0 | | LDC weighting polynomial function 'd' parameter. |
| Limit Capital Cost Perpetuity by Economic Life | - | -1 | In (0,-1) | With perpetuity end effect, if annuity calculation should extend beyond the end of the horizon up to the Economic Life |
| Maintenance Sculpting | Yes/No | 0 | In (0,-1) | If LT Plan should sculpt maintenance derating according to the inverse of load. |
| Optimality | - | 2 | In (0,1,2) | LT Plan integerization scheme. |
| Optimize Expansion | Yes/No | -1 | In (0,-1) | If expansion is optimized by this simulation phase |
| Outage Increment | MW | 10 | ≥1 | Generator outage bin size in convolution |
| Overlap | - | 0 | ≥-1 | Number of years overlap between steps where -1 invokes Rolling Horizon |
| Pricing Method | - | 0 | In (0,1) | Type of generator pricing used in LT Plan. |
| Reduced Sample Count | - | 4 | ≥1 | Statistically reduce the [Sample Type] periods to at most this number of samples each year. |
| Reduction Relative Accuracy | - | 1 | Between 0 And 1 | Stop sample reduction when the accuracy of the reduced sample set reaches this level. |
| Sample Type | - | 2 | In (1,2,3,4) | For Chronology = "Sampled", take this type of sample. |
| Sample Year Count | - | 0 | ≥0 | For [Chronology] = "Sampled", first select this many years then sample within only those years. |
| Sampled Block Count | - | 0 | ≥0 | Number of blocks modeled in each sample period (day/week) where zero means the original number of intervals |
| Sampling Interval | - | 4 | In (-1,2,3,4,7) | For Chronology = "Sampled", take [Sample Type] samples in each of these intervals of time. |
| Solution Count | - | 1 | ≥1 | Maximum number of solutions produced in the solution hierarchy |
| Solution Quality | % | 0 | Between 0 And 100 | Continue producing solutions up to Solution Count or when Solution Quality falls to this level |
| Start Cost Amortization Period | h | 0 | ≥0 | Number of hours over which generator start costs are amortized |
| Stochastic Method | - | 0 | In (0,1,2,3) | Stochastic optimization method for LT Plan |
| Storage Formulate Head Effects | Yes/No | -1 | In (0,-1) | If storage head effects should be formulated in LT Plan |
| Storage Restart | Yes/No | 0 | In (0,-1) | If recycled storage should restart from their initial volume at the start of each capacity optimization period |
| Tax Rate | % | 0 | | Tax rate used to compute tax credits |
| Use Effective Load Approach | Yes/No | 0 | In (0,-1) | If LT Plan uses the effective load approach |
| Write Expansion Plan Text Files | Yes/No | 0 | In (0,-1) | If expansion plans should be written to text files |