Description Usage Arguments Value See Also Examples
Determines the optimal sequence of turbined releases to maximise the total energy produced by the reservoir.
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Q |
time series object. Net inflows to the reservoir. Must be in volumetric units of Mm^3. |
capacity |
numerical. The total reservoir storage capacity (including unusable "dead" storage). Must be in Mm^3. |
capacity_live |
numerical. The volume of usable water in the reservoir ("live capacity" or "active storage"). capacity_live <= capacity. Default capacity_live = capacity. Must be in Mm^3. |
surface_area |
numerical. The reservoir surface area at full capacity. Must be in square kilometers (km^2), or Mm^2. |
evap |
vector or time series object of length Q, or a numerical constant, representing evaporation loss potential from reservoir surface. Varies with level if depth and surface_area parameters are specified. Must be in meters, or kg/m2 * 10 ^ -3. |
installed_cap |
numerical. The hydropower plant electric capacity (MW). |
head |
numerical. The maximum hydraulic head of the hydropower plant (m). Can be omitted and estimated if qmax is supplied. |
qmax |
numerical. The maximum flow into the hydropower plant. Can be omitted and estimated if head is supplied. Must be in volumetric units of Mm^3. |
max_depth |
numerical. The maximum water depth of the reservoir at maximum capacity. If omitted, the depth-storage-area relationship will be estimated from surface area and capacity only. Recommended units: meters. |
efficiency |
numerical. The hydropower plant efficiency. Default is 0.9, but, unless user specifies an efficiency, it will be automatically re-estimated if head and qmax are supplied. |
S_disc |
integer. Storage discretization–the number of equally-sized storage states. Default = 1000. |
R_disc |
integer. Release discretization. Default = 10 divisions. |
S_initial |
numeric. The initial storage as a ratio of capacity (0 <= S_initial <= 1). The default value is 1. |
r2g |
vector. Optional end-state cost-to-go. |
plot |
logical. If TRUE (the default) the storage behavior diagram and release time series are plotted. |
Returns the time series of optimal releases and simulated storage, evaporation, depth, uncontrolled spill, and power generated. Total energy generated is also returned.
sdp_hydro
for Stochastic Dynamic Programming for hydropower reservoirs.
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