diff --git a/util/templates/render_instance.go b/util/templates/render_instance.go
index 3c6577f5c..441129f40 100644
--- a/util/templates/render_instance.go
+++ b/util/templates/render_instance.go
@@ -3,6 +3,7 @@ package templates
 import (
 	"errors"
 	"fmt"
+	"os"
 
 	"github.com/evcc-io/evcc/util"
 	"gopkg.in/yaml.v3"
@@ -35,6 +36,10 @@ func RenderInstance(class Class, other map[string]interface{}) (*Instance, error
 		return nil, util.NewConfigError(err)
 	}
 
+	if os.Getenv("EVCC_TEMPLATE_RENDER") == cc.Template {
+		fmt.Println(string(b))
+	}
+
 	var instance Instance
 	if err := yaml.Unmarshal(b, &instance); err != nil {
 		return nil, fmt.Errorf("%w:\n%s", err, string(b))