diff --git a/config.example.json b/config.example.json
index 5e5d62c..e703e3b 100644
--- a/config.example.json
+++ b/config.example.json
@@ -20,6 +20,8 @@
 		"power_bias_watts": 3000.0,
 		"monophase_volts": 240,
 		"polling_interval": 15,
+		"current_min": 7,
+		"current_max": 16,
 		"p": 0.2,
 		"i": 0.1,
 		"d": 0
diff --git a/src/config.rs b/src/config.rs
index f7cfe57..18660f6 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,5 @@
+use std::ops::Range;
+
 use anyhow::Result;
 use serde::Deserialize;
 use serde_json;
@@ -36,6 +38,8 @@ pub struct Regulator {
     pub power_bias_watts: f64,
     pub monophase_volts: f64,
     pub polling_interval: u64,
+    pub current_min: f64,
+    pub current_max: f64,
     pub p: f64,
     pub i: f64,
     pub d: f64,
diff --git a/src/control.rs b/src/control.rs
index efa0887..6764b38 100644
--- a/src/control.rs
+++ b/src/control.rs
@@ -71,12 +71,12 @@ pub fn start(
 
     if let Some(reg) = config.regulator {
         let circuit = ctx
-            .sites_details()?
+            .sites()?
             .into_iter()
-            .find(|s| s.site.id == reg.site_id)
+            .find(|s| s.id == reg.site_id)
             .ok_or(anyhow!("Invalid site id {}", reg.site_id))?
-            .circuits
-            .into_iter()
+            .details(&mut ctx)?
+            .circuits.into_iter()
             .find(|c| c.id == reg.circuit_id)
             .ok_or(anyhow!("Invalid circuit id {}", reg.circuit_id))?;
 
diff --git a/src/main.rs b/src/main.rs
index 5413811..01232ac 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -163,12 +163,12 @@ fn main() -> Result<()> {
     match args.mode {
         Mode::Login => login()?,
         Mode::List => {
-            for site in ctx.sites_details()? {
+            for site in ctx.sites()? {
                 println!(
                     "Site {} (level {})",
-                    site.site.id, site.site.level_of_access
+                    site.id, site.level_of_access
                 );
-                for circuit in site.circuits {
+                for circuit in site.details(&mut ctx)?.circuits {
                     println!(" Circuit {} ({}A)", circuit.id, circuit.rated_current);
                     for charger in circuit.chargers {
                         println!("Charger {} (level {}", charger.id, charger.level_of_access);