diff --git a/src/core/energy_supply/energy_supply.rs b/src/core/energy_supply/energy_supply.rs
index 03a4dcb..25fd4d0 100644
--- a/src/core/energy_supply/energy_supply.rs
+++ b/src/core/energy_supply/energy_supply.rs
@@ -1,8 +1,7 @@
 use crate::input::{ElectricBattery, EnergyDiverter, EnergySupplyType};
-use crate::simulation_time::{SimulationTimeIterator};
+use crate::simulation_time::SimulationTimeIterator;
 use std::collections::HashMap;
 
-
 pub struct EnergySupply {
     fuel_type: EnergySupplyType,
     simulation_time: SimulationTimeIterator,
@@ -205,12 +204,12 @@ mod test {
         simulation_time: SimulationTimeIterator,
     ) {
         for simtime in simulation_time {
-            energy_supply.demand_energy(
+            let _ = energy_supply.demand_energy(
                 "shower".to_string(),
                 (simtime.index as f64 + 1.0) * 50.0,
                 simtime.index,
             );
-            energy_supply.demand_energy(
+            let _ = energy_supply.demand_energy(
                 "bath".to_string(),
                 simtime.index as f64 * 20.0,
                 simtime.index,
diff --git a/src/core/space_heat_demand/ventilation_element.rs b/src/core/space_heat_demand/ventilation_element.rs
index 8fc59f9..68d06a6 100644
--- a/src/core/space_heat_demand/ventilation_element.rs
+++ b/src/core/space_heat_demand/ventilation_element.rs
@@ -10,8 +10,7 @@ use crate::core::units::{
 };
 use crate::external_conditions::ExternalConditions;
 use crate::input::{
-    BuildingElement, InfiltrationBuildType, InfiltrationShelterType,
-    InfiltrationTestType,
+    BuildingElement, InfiltrationBuildType, InfiltrationShelterType, InfiltrationTestType,
 };
 use crate::simulation_time::SimulationTimeIterator;
 use std::collections::HashSet;
@@ -337,7 +336,7 @@ impl MechanicalVentilationHeatRecovery {
         let fan_energy_use_kwh =
             (fan_power_w / WATTS_PER_KILOWATT as f64) * self.simulation_time.step_in_hours();
 
-        self.energy_supply.demand_energy(
+        let _ = self.energy_supply.demand_energy(
             self.energy_supply_end_user_name.clone(),
             fan_energy_use_kwh,
             timestep_index,
diff --git a/src/external_conditions.rs b/src/external_conditions.rs
index 7a28098..ff99619 100644
--- a/src/external_conditions.rs
+++ b/src/external_conditions.rs
@@ -1,3 +1,5 @@
+#![allow(non_snake_case)]
+
 use crate::simulation_time::{SimulationTimeIterator, HOURS_IN_DAY};
 use itertools::Itertools;
 use serde::Deserialize;
diff --git a/src/input.rs b/src/input.rs
index ecfc0bb..c58f56e 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -2,7 +2,7 @@ use crate::external_conditions::{DaylightSavingsConfig, ShadingSegment, WindowSh
 use crate::simulation_time::SimulationTime;
 use indexmap::IndexMap;
 use serde::Deserialize;
-use serde_json::{Value};
+use serde_json::Value;
 use std::collections::HashMap;
 use std::error::Error;
 use std::fs::File;
@@ -307,6 +307,7 @@ pub enum HotWaterSourceDetails {
         heat_source_wet: HeatSourceWetType,
         #[serde(alias = "Control")]
         control: HeatSourceControlType,
+        #[allow(non_snake_case)]
         separate_DHW_tests: Value, // only known value here is "M&L" so looks too early to say this is an enum
         rejected_energy_1: f64,
         fuel_energy_2: f64,
diff --git a/src/main.rs b/src/main.rs
index 9e34da9..cff23e5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,6 @@ mod read_weather_file;
 use clap::{Args, Parser};
 use ecaas::read_weather_file::{weather_data_to_vec, ExternalConditions};
 use ecaas::run_project;
-use std::rc::Rc;
 
 #[derive(Parser, Default, Debug)]
 #[clap(author, version, about, long_about = None)]