diff --git a/src/coolant/condenser_secondary.hpp b/src/coolant/condenser_secondary.hpp
index 7023517..1c2a6f1 100644
--- a/src/coolant/condenser_secondary.hpp
+++ b/src/coolant/condenser_secondary.hpp
@@ -18,8 +18,8 @@ public:
 	condenser_secondary(condenser* primary, evaporator* source, double volume);
 
 	virtual double add_heat(double m, double t) { return source->add_heat(m, t); }
-	virtual void add_gas(double steam, double gas, double t, double e) { return source->add_gas(steam, gas, t, e); }
 	virtual double extract_fluid(double amount) { return source->extract_fluid(amount); }
+	virtual void add_gas(double steam, double gas, double t) { return source->add_gas(steam, gas, t); }
 
 	virtual double add_fluid(double amount, double heat);
 	
diff --git a/src/coolant/fluid_holder.cpp b/src/coolant/fluid_holder.cpp
index 1a06809..79cc2a7 100644
--- a/src/coolant/fluid_holder.cpp
+++ b/src/coolant/fluid_holder.cpp
@@ -77,7 +77,7 @@ double fluid_holder::extract_fluid(double amount)
 	return amount;
 }
 
-void fluid_holder::add_gas(double m_s2, double m_a2, double t_2, double e_2)
+void fluid_holder::add_gas(double m_s2, double m_a2, double t_2)
 {
 	double m_2 = m_a2 + m_s2;
 	double m_1 = get_thermal_mass();
diff --git a/src/coolant/fluid_holder.hpp b/src/coolant/fluid_holder.hpp
index 5f1cd4d..e2f093b 100644
--- a/src/coolant/fluid_holder.hpp
+++ b/src/coolant/fluid_holder.hpp
@@ -31,7 +31,7 @@ public:
 	virtual double extract_fluid(double amount);
 
 	virtual double add_fluid(double amount, double heat);
-	virtual void add_gas(double steam, double air, double heat, double energy);
+	virtual void add_gas(double steam, double air, double heat);
 
 	virtual double get_volume() const { return volume; } // litres
 	virtual double get_level() const { return level; } // litres
diff --git a/src/coolant/pump.cpp b/src/coolant/pump.cpp
index a04a3ec..9e87aec 100644
--- a/src/coolant/pump.cpp
+++ b/src/coolant/pump.cpp
@@ -1,5 +1,6 @@
 
 #include "pump.hpp"
+#include "../util/math.hpp"
 
 #include <cmath>
 #include <iostream>
@@ -53,18 +54,6 @@ const char* pump::get_state_string()
 	return "On";
 }
 
-static double calc_work(double j, double mass)
-{
-	double m = 1;
-
-	if(j < 0)
-	{
-		m = -1;
-	}
-
-	return m * std::sqrt(m * j / (mass * 0.001));
-}
-
 void pump::update(double dt)
 {
 	if(powered)
@@ -82,7 +71,7 @@ void pump::update(double dt)
 			break;
 		}
 
-		velocity += calc_work(dt * power * max_power, mass);
+		velocity += util::calc_work(dt * power * max_power, mass);
 	}
 
 	else
@@ -99,9 +88,9 @@ void pump::update(double dt)
 
 	double p_diff_2 = dst->get_pressure() - src->get_pressure();
 	double p_diff = (p_diff_1 + p_diff_2) / 2;
-	double work = p_diff * dst_volume * 0.001 + get_rpm() * 60 * dt * friction;
+	double work = p_diff * dst_volume * 0.001 + get_rpm() / 60 * dt * friction;
 
-	velocity = std::max(velocity - calc_work(work, mass), 0.0);
+	velocity = std::max(velocity - util::calc_work(work, mass), 0.0);
 	flow = dst_volume / dt;
 }
 
diff --git a/src/coolant/valve.cpp b/src/coolant/valve.cpp
index 53a2d1b..18d7b1a 100644
--- a/src/coolant/valve.cpp
+++ b/src/coolant/valve.cpp
@@ -75,8 +75,8 @@ void valve::update(double dt)
 	double heat1 = src->get_heat(); // C
 	double heat2 = dst->get_heat();
 
-	src->add_gas(-mass_s, mass_a, heat2, 0);
-	dst->add_gas(mass_s, mass_a, heat1, 0);
+	src->add_gas(-mass_s, mass_a, heat2);
+	dst->add_gas(mass_s, mass_a, heat1);
 
 	this->flow = (mass_s + mass_a) / dt;
 }
diff --git a/src/electric/turbine.cpp b/src/electric/turbine.cpp
index 45f2afc..fb3d6dd 100644
--- a/src/electric/turbine.cpp
+++ b/src/electric/turbine.cpp
@@ -1,6 +1,7 @@
 
 #include "turbine.hpp"
 #include "../system.hpp"
+#include "../util/math.hpp"
 
 #include <cmath>
 #include <iostream>
@@ -25,6 +26,7 @@ turbine::turbine(const Json::Value& node, coolant::condenser* condenser) :
 		condenser(condenser),
 		length(node["length"].asDouble()),
 		diameter(node["diameter"].asDouble()),
+		friction(node["friction"].asDouble()),
 		sim::coolant::fluid_holder(node)
 {
 	velocity = node["velocity"].asDouble();
@@ -32,12 +34,20 @@ turbine::turbine(const Json::Value& node, coolant::condenser* condenser) :
 
 void turbine::update(double dt)
 {
-	
+	double work = get_rpm() / 60 * dt * friction;
+	velocity = std::max(velocity - work, 0.0);
 }
 
-void turbine::add_gas(double steam, double air, double t, double e)
+double turbine::get_rpm() const
 {
-	condenser->add_gas(steam, air, t, e);
+	return velocity / (M_PI * extra_mass * 0.001 * diameter * diameter * 0.25);
+}
+
+void turbine::add_gas(double steam, double air, double t)
+{
+	double joules = (steam + air) * fluid.jPg;
+	velocity = std::max(velocity + util::calc_work(joules, extra_mass), 0.0);
+	condenser->add_gas(steam, air, t);
 }
 
 turbine::operator Json::Value() const
@@ -47,6 +57,7 @@ turbine::operator Json::Value() const
 	node["length"] = length;
 	node["diameter"] = diameter;
 	node["velocity"] = velocity;
+	node["friction"] = friction;
 	
 	return node;
 }
diff --git a/src/electric/turbine.hpp b/src/electric/turbine.hpp
index 975e091..eb6683c 100644
--- a/src/electric/turbine.hpp
+++ b/src/electric/turbine.hpp
@@ -13,6 +13,7 @@ class turbine : public sim::coolant::fluid_holder
 	
 	const double length;
 	const double diameter;
+	const double friction = 1;
 	
 	double velocity = 0; // m/s
 	
@@ -22,11 +23,13 @@ public:
 	turbine(const Json::Value& node, coolant::condenser* condenser);
 	
 	void update(double dt);
+	double get_rpm() const;
 	
 	virtual double add_heat(double m, double t) { return condenser->add_heat(m, t); }
 	virtual double extract_fluid(double amount) { return condenser->extract_fluid(amount); }
 	virtual double add_fluid(double amount, double heat) { return condenser->add_fluid(amount, heat); }
-	virtual void add_gas(double steam, double gas, double t, double e);
+
+	virtual void add_gas(double steam, double gas, double t);
 
 	virtual double get_volume() const { return condenser->get_volume(); }
 	virtual double get_level() const { return condenser->get_level(); }
diff --git a/src/graphics/input/focus.cpp b/src/graphics/input/focus.cpp
index 459a6ca..2653560 100644
--- a/src/graphics/input/focus.cpp
+++ b/src/graphics/input/focus.cpp
@@ -136,6 +136,22 @@ void focus::update(double dt)
 	}
 }
 
+void focus::render_ui()
+{
+	if(state)
+	{
+		state->render_ui();
+	}
+}
+
+void focus::render()
+{
+	if(state)
+	{
+		state->render();
+	}
+}
+
 bool focus::is_focused()
 {
 	return (state != nullptr);
diff --git a/src/graphics/input/focus.hpp b/src/graphics/input/focus.hpp
index ad8f5cb..5569506 100644
--- a/src/graphics/input/focus.hpp
+++ b/src/graphics/input/focus.hpp
@@ -17,6 +17,8 @@ struct focus_t
 	virtual void on_cursor_pos(double x, double y) { }
 	virtual void on_charcode(unsigned int c) { }
 	virtual void update(double dt) { }
+	virtual void render_ui() { }
+	virtual void render() { }
 };
 
 bool is_focused();
@@ -32,6 +34,8 @@ void on_mouse_button(int button, int action, int mods);
 void on_cursor_pos(double x, double y);
 void on_charcode(unsigned int c);
 void update(double dt);
+void render_ui();
+void render();
 
 };
 
diff --git a/src/graphics/mesh/font.cpp b/src/graphics/mesh/font.cpp
index 0db843a..e791621 100644
--- a/src/graphics/mesh/font.cpp
+++ b/src/graphics/mesh/font.cpp
@@ -101,6 +101,13 @@ void mesh::load_text(const char* text, double size)
 	float x = 0, y = size;
 	unsigned int at = 0;
 
+	if(text[0] == '\0')
+	{
+		this->vertices.clear();
+		this->indices.clear();
+		return;
+	}
+
 	for(unsigned int i = 0; text[i] != '\0'; i++)
 	{
 		char c = text[i];
@@ -139,7 +146,7 @@ void mesh::load_text(const char* text, double size)
 		x += ch.advance * size;
 	}
 
-	set_vertices(&vertices[0], vertices.size());
-	set_indices(&indices[0], indices.size());
+	this->vertices = std::move(vertices);
+	this->indices = std::move(indices);
 }
 
diff --git a/src/graphics/monitor/turbine.cpp b/src/graphics/monitor/turbine.cpp
new file mode 100644
index 0000000..0876031
--- /dev/null
+++ b/src/graphics/monitor/turbine.cpp
@@ -0,0 +1,78 @@
+
+#include <GL/glew.h>
+#include <GLFW/glfw3.h>
+
+#include "helpers.hpp"
+#include "turbine.hpp"
+#include "../locations.hpp"
+#include "../../system.hpp"
+#include "../../coolant/valve.hpp"
+#include "../input/focus.hpp"
+
+#include <glm/ext/matrix_transform.hpp>
+#include <iostream>
+
+using namespace sim::graphics;
+using namespace sim::graphics::monitor;
+
+turbine::turbine()
+{
+
+}
+
+void turbine::init()
+{
+	mesh1.model_matrix = locations::monitors[4];
+	mesh2.model_matrix = glm::translate(mesh1.model_matrix, glm::vec3(0.5, 0, 0));
+
+	mesh1.colour_matrix = mesh2.colour_matrix = {
+		1, 1, 1, 1,
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 0, 0
+	};
+	
+	std::stringstream ss;
+	sim::graphics::mesh rmesh;
+
+	ss << "Turbine\n\n";
+	ss << "Heat\nPressure\nSpeed\n\n";
+
+	rmesh.load_text(ss.str().c_str(), 0.04);
+	mesh1.bind();
+	mesh1.set(rmesh, GL_STATIC_DRAW);
+}
+
+void turbine::update(double dt)
+{
+	system& sys = sim::system::active;
+	clock_now += dt;
+
+	if(clock_at + 1.0/30.0 < clock_now)
+	{
+		std::stringstream ss;
+		sim::graphics::mesh rmesh;
+		clock_at += 1.0/30.0;
+
+		ss << "\n\n";
+		ss << show( sys.turbine->get_heat() ) << " C\n";
+		ss << show( sys.turbine->get_pressure() / 1000 ) << " kPa\n";
+		ss << show( sys.turbine->get_rpm() ) << " r/min\n";
+		
+		rmesh.load_text(ss.str().c_str(), 0.04);
+		mesh2.bind();
+		mesh2.set(rmesh, GL_DYNAMIC_DRAW);
+	}
+}
+
+void turbine::render()
+{
+	mesh1.bind();
+	mesh1.uniform();
+	mesh1.render();
+
+	mesh2.bind();
+	mesh2.uniform();
+	mesh2.render();
+}
+
diff --git a/src/graphics/monitor/turbine.hpp b/src/graphics/monitor/turbine.hpp
new file mode 100644
index 0000000..a6a3c60
--- /dev/null
+++ b/src/graphics/monitor/turbine.hpp
@@ -0,0 +1,23 @@
+
+#pragma once
+
+#include "../mesh/glmesh.hpp"
+
+namespace sim::graphics::monitor
+{
+
+class turbine
+{
+	sim::graphics::glmesh mesh1, mesh2;
+	double clock_at = 0, clock_now = 0;
+
+public:
+
+	turbine();
+	void init();
+	void update(double dt);
+	void render();
+};
+
+};
+
diff --git a/src/graphics/widget/clock.cpp b/src/graphics/widget/clock.cpp
index 9e84866..c2d9436 100644
--- a/src/graphics/widget/clock.cpp
+++ b/src/graphics/widget/clock.cpp
@@ -21,7 +21,7 @@ using namespace sim::graphics::widget;
 void clock::update(double dt)
 {
 	mesh m;
-	double at = 3600 * 12 + system::active.clock;
+	double at = system::active.clock;
 	glm::vec2 wsize(resize::get_size() / 2);
 	std::stringstream ss;
 
diff --git a/src/graphics/window.cpp b/src/graphics/window.cpp
index ee7d21f..8fa6e3b 100644
--- a/src/graphics/window.cpp
+++ b/src/graphics/window.cpp
@@ -12,6 +12,7 @@
 #include "mesh/arrays.hpp"
 #include "input/keyboard.hpp"
 #include "input/mouse.hpp"
+#include "input/focus.hpp"
 #include "camera.hpp"
 #include "resize.hpp"
 #include "window.hpp"
@@ -22,6 +23,7 @@
 #include "monitor/core.hpp"
 #include "monitor/primary_loop.hpp"
 #include "monitor/secondary_loop.hpp"
+#include "monitor/turbine.hpp"
 #include "mesh/texture.hpp"
 #include "ui.hpp"
 
@@ -35,6 +37,7 @@ static monitor::vessel monitor_vessel;
 static monitor::core monitor_core;
 static monitor::primary_loop monitor_primary_loop;
 static monitor::secondary_loop monitor_secondary_loop;
+static monitor::turbine monitor_turbine;
 
 glm::mat4 window::projection_matrix;
 
@@ -116,6 +119,7 @@ void window::create()
 	monitor_vessel.init();
 	monitor_primary_loop.init();
 	monitor_secondary_loop.init();
+	monitor_turbine.init();
 
 	glfwShowWindow(win);
 	glViewport(0, 0, 800, 600);
@@ -129,6 +133,7 @@ void window::update(double dt)
 	monitor_vessel.update(dt);
 	monitor_primary_loop.update(dt);
 	monitor_secondary_loop.update(dt);
+	monitor_turbine.update(dt);
 
 	ui::update(dt);
 }
@@ -152,8 +157,11 @@ void window::render()
 	monitor_vessel.render();
 	monitor_primary_loop.render();
 	monitor_secondary_loop.render();
+	monitor_turbine.render();
 
+	focus::render();
 	ui::render();
+	focus::render_ui();
 
 	glfwSwapBuffers(win);
 }
diff --git a/src/system.hpp b/src/system.hpp
index ccb0492..6156bc0 100644
--- a/src/system.hpp
+++ b/src/system.hpp
@@ -38,7 +38,7 @@ struct system
 	std::unique_ptr<sim::coolant::valve> turbine_inlet_valve;
 
 	double speed = 1;
-	double clock = 0;
+	double clock = 3600 * 12;
 
 	system();
 	system(const Json::Value& node);
diff --git a/src/util/math.hpp b/src/util/math.hpp
index 53cb189..131656e 100644
--- a/src/util/math.hpp
+++ b/src/util/math.hpp
@@ -3,6 +3,7 @@
 
 #include <glm/matrix.hpp>
 #include <ostream>
+#include <cmath>
 
 template <int N, typename T>
 std::ostream& operator<<(std::ostream& o, const glm::vec<N, T>& v)
@@ -18,3 +19,20 @@ std::ostream& operator<<(std::ostream& o, const glm::vec<N, T>& v)
 	return o;
 }
 
+namespace sim::util
+{
+
+constexpr double calc_work(double j, double mass)
+{
+	double m = 1;
+
+	if(j < 0)
+	{
+		m = -1;
+	}
+
+	return m * std::sqrt(m * j / (mass * 0.001));
+}
+
+};
+