--- /dev/null
+#include <simgrid/Exception.hpp>
+#include <simgrid/plugins/photovoltaic.hpp>
+#include <simgrid/s4u/Actor.hpp>
+#include <simgrid/s4u/Engine.hpp>
+#include <simgrid/s4u/Host.hpp>
+#include <simgrid/s4u/VirtualMachine.hpp>
+#include <simgrid/simix.hpp>
+
+#include "src/kernel/resource/CpuImpl.hpp"
+#include "src/simgrid/module.hpp"
+
+#include <boost/algorithm/string/classification.hpp>
+#include <boost/algorithm/string/split.hpp>
+
+SIMGRID_REGISTER_PLUGIN(photovoltaic, "Photovoltaic management", &sg_photovoltaic_plugin_init)
+
+/** @defgroup plugin_photovoltaic plugin_photovoltaic Plugin photovoltaic
+
+ @beginrst
+
+This is the photovoltaic plugin, enabling management of photovoltaic panels on hosts.
+To activate this plugin, first call :cpp:func:`sg_photovoltaic_plugin_init()`.
+
+This plugin allows evaluation of photovoltaic panels power generation during simulation depending on size, solar
+irradiance and conversion factor.
+
+Photovoltaic Panel properties
+....................
+
+Properties of panels are defined as properties of hosts in the platform XML file.
+
+Here is an example of XML declaration where we consider a host as a photovoltaic panel:
+
+.. code-block:: xml
+
+ <host id="pv_panel" speed="0f">
+ <prop id="photovoltaic_area" value="4" />
+ <prop id="photovoltaic_conversion_efficiency" value="0.2" />
+ </host>
+
+The different properties are:
+
+- ``photovoltaic_area``: Set the area of the panel in m² (default=0)
+- ``photovoltaic_conversion_efficiency``: Set the conversion efficiency of the panel (default=0)
+- ``photovoltaic_solar_irradiance``: Set the initial solar irradiance in W/m² (default=0)
+- ``photovoltaic_min_power``: Set the minimum power of the panel in W (default=-1). Power generation below this value is automatically 0. Value is ignored if negative
+- ``photovoltaic_max_power``: Set the maximal power of the panel in W (default=-1). Power generation above this value is automatically truncated. Value is ignored if negative
+- ``photovoltaic_eval_cost``: Evaluate the cost of the panel during the simulation if set to 1 (defaulf=0)
+- ``photovoltaic_lifespan``: Set the lifespan of the panel in years (default=0)
+- ``photovoltaic_investment_cost``: Set the investment cost of the panel (default=0)
+- ``photovoltaic_maintenance_cost``: Set the maintenance cost of the panel (default=0)
+
+ @endrst
+ */
+
+/*These equations are taken from the paper "Reinforcement Learning Based Load Balancing for
+Geographically Distributed Data Centres" of Max Mackie et. al
+https://dro.dur.ac.uk/33395/1/33395.pdf?DDD280+kkgc95+vbdv77
+*/
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(photovoltaic, kernel, "Logging specific to the photovoltaic plugin");
+
+namespace simgrid::plugin {
+class Photovoltaic {
+private:
+ simgrid::s4u::Host* host_ = nullptr;
+
+ double area_m2_ = 0;
+ double conversion_efficiency_ = 0;
+ double solar_irradiance_w_per_m2_ = 0;
+ double min_power_w_ = -1;
+ double max_power_w_ = -1;
+
+ double power_w_ = 0;
+ double last_updated_ = 0;
+
+ // Calculation of costs from Bei Li thesis (link :https://tel.archives-ouvertes.fr/tel-02077668/document) (chapter 4)
+ bool eval_cost_ = false;
+ double cumulative_cost_ = 0;
+ int lifespan_years_ = 0;
+ double investment_cost_per_w_ = 0;
+ double maintenance_cost_per_wh_ = 0;
+
+ void init_photovoltaic_params();
+ void init_cost_params();
+ void update();
+
+ Photovoltaic* set_area(double a);
+ Photovoltaic* set_conversion_efficiency(double e);
+ Photovoltaic* set_min_power(double p);
+ Photovoltaic* set_max_power(double p);
+ Photovoltaic* set_eval_cost(bool eval);
+ Photovoltaic* set_lifespan(int l);
+ Photovoltaic* set_investment_cost(double c);
+ Photovoltaic* set_maintenance_cost(double c);
+
+public:
+ static simgrid::xbt::Extension<simgrid::s4u::Host, Photovoltaic> EXTENSION_ID;
+
+ explicit Photovoltaic(simgrid::s4u::Host* host);
+ ~Photovoltaic();
+
+ Photovoltaic* set_solar_irradiance(double s);
+
+ double get_power();
+};
+
+Photovoltaic* Photovoltaic::set_area(double a)
+{
+ xbt_assert(a > 0, " : area should be > 0 (provided: %f)", a);
+ simgrid::kernel::actor::simcall_answered([this, a] { area_m2_ = a; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_conversion_efficiency(double e)
+{
+ xbt_assert(e > 0 and e <= 1, " : conversion efficiency should be in [0,1] (provided: %f)", e);
+ simgrid::kernel::actor::simcall_answered([this, e] { conversion_efficiency_ = e; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_solar_irradiance(double s)
+{
+ xbt_assert(s > 0, " : solar irradiance should be > 0 (provided: %f)", s);
+ simgrid::kernel::actor::simcall_answered([this, s] { solar_irradiance_w_per_m2_ = s; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_min_power(double p)
+{
+ simgrid::kernel::actor::simcall_answered([this, p] { min_power_w_ = p; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_max_power(double p)
+{
+ simgrid::kernel::actor::simcall_answered([this, p] { max_power_w_ = p; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_eval_cost(bool e)
+{
+ simgrid::kernel::actor::simcall_answered([this, e] { eval_cost_ = e; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_lifespan(int l)
+{
+ xbt_assert(l > 0, " : lifespan should be > 0 (provided: %d)", l);
+ simgrid::kernel::actor::simcall_answered([this, l] { lifespan_years_ = l; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_investment_cost(double c)
+{
+ xbt_assert(c > 0, " : investment cost should be > 0 (provided: %f)", c);
+ simgrid::kernel::actor::simcall_answered([this, c] { investment_cost_per_w_ = c; });
+ return this;
+}
+
+Photovoltaic* Photovoltaic::set_maintenance_cost(double c)
+{
+ xbt_assert(c > 0, " : maintenance cost hould be > 0 (provided: %f)", c);
+ simgrid::kernel::actor::simcall_answered([this, c] { maintenance_cost_per_wh_ = c; });
+ return this;
+}
+
+double Photovoltaic::get_power()
+{
+ update();
+ return power_w_;
+}
+
+simgrid::xbt::Extension<simgrid::s4u::Host, Photovoltaic> Photovoltaic::EXTENSION_ID;
+
+void Photovoltaic::init_photovoltaic_params()
+{
+ const char* prop_chars;
+ prop_chars = host_->get_property("photovoltaic_area");
+ if (prop_chars)
+ set_area(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_conversion_efficiency");
+ if (prop_chars)
+ set_conversion_efficiency(
+ xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_solar_irradiance");
+ if (prop_chars)
+ set_solar_irradiance(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_min_power");
+ if (prop_chars)
+ set_min_power(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_max_power");
+ if (prop_chars)
+ set_max_power(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_eval_cost");
+ if (prop_chars)
+ set_eval_cost(xbt_str_parse_int(prop_chars, ("cannot parse int: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_lifespan");
+ if (prop_chars)
+ set_lifespan(xbt_str_parse_int(prop_chars, ("cannot parse int: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_investment_cost");
+ if (prop_chars)
+ set_investment_cost(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ prop_chars = host_->get_property("photovoltaic_maintenance_cost");
+ if (prop_chars)
+ set_maintenance_cost(xbt_str_parse_double(prop_chars, ("cannot parse double: " + std::string(prop_chars)).c_str()));
+ simgrid::kernel::actor::simcall_answered([this] { last_updated_ = simgrid::s4u::Engine::get_clock(); });
+}
+
+void Photovoltaic::update()
+{
+ simgrid::kernel::actor::simcall_answered([this] {
+ double now = simgrid::s4u::Engine::get_clock();
+ if (now <= last_updated_)
+ return;
+ double power_w = conversion_efficiency_ * area_m2_ * solar_irradiance_w_per_m2_;
+ if (min_power_w_ > 0 and power_w_ < min_power_w_)
+ power_w = 0;
+ if (max_power_w_ > 0 and power_w_ > max_power_w_)
+ power_w = max_power_w_;
+ power_w_ = power_w;
+ if (eval_cost_) {
+ xbt_assert(max_power_w_ > 0, " : max power must be > 0 (provided: %f)", max_power_w_);
+ cumulative_cost_ += max_power_w_ * (now - last_updated_) *
+ (investment_cost_per_w_ / (lifespan_years_ * 8760 * 3600) + maintenance_cost_per_wh_ / 3600);
+ }
+ last_updated_ = now;
+ });
+}
+
+Photovoltaic::Photovoltaic(simgrid::s4u::Host* host) : host_(host)
+{
+ init_photovoltaic_params();
+}
+
+Photovoltaic::~Photovoltaic() = default;
+} // namespace simgrid::plugin
+
+using simgrid::plugin::Photovoltaic;
+
+/* **************************** events callback *************************** */
+
+static void on_creation(simgrid::s4u::Host& host)
+{
+ if (dynamic_cast<simgrid::s4u::VirtualMachine*>(&host)) // Ignore virtual machines
+ return;
+ host.extension_set(new Photovoltaic(&host));
+}
+
+/* **************************** Public interface *************************** */
+
+static void ensure_plugin_inited()
+{
+ if (not Photovoltaic::EXTENSION_ID.valid())
+ throw simgrid::xbt::InitializationError(
+ "The Photovoltaic plugin is not active. Please call sg_photovoltaic_plugin_init() "
+ "before calling any function related to that plugin.");
+}
+
+/** @ingroup plugin_photovoltaic
+ * @brief Enable photovoltaic plugin.
+ */
+void sg_photovoltaic_plugin_init()
+{
+ if (Photovoltaic::EXTENSION_ID.valid())
+ return;
+ Photovoltaic::EXTENSION_ID = simgrid::s4u::Host::extension_create<Photovoltaic>();
+ simgrid::s4u::Host::on_creation_cb(&on_creation);
+}
+
+/** @ingroup plugin_photovoltaic
+ * @param s The solar irradiance to set in W/m².
+ */
+void sg_photovoltaic_set_solar_irradiance(const_sg_host_t host, double s)
+{
+ ensure_plugin_inited();
+ host->extension<Photovoltaic>()->set_solar_irradiance(s);
+}
+
+/** @ingroup plugin_photovoltaic
+ * @return Power generation in W.
+ */
+double sg_photovoltaic_get_power(const_sg_host_t host)
+{
+ ensure_plugin_inited();
+ return host->extension<Photovoltaic>()->get_power();
+}
\ No newline at end of file
