Switched from FML Optional to AE Optional, lets me specify more interesting requirements for integration, and lets the config alter the resulting integration setup.

integration/modules/RF.java

@@ -0,0 +1,27 @@
+package appeng.integration.modules;
+
+import appeng.integration.BaseModule;
+import appeng.integration.IIntegrationModule;
+
+public class RF extends BaseModule implements IIntegrationModule
+{
+
+	public static RF instance;
+
+	public RF() {
+		TestClass( cofh.api.energy.IEnergyHandler.class );
+	}
+
+	@Override
+	public void Init()
+	{
+
+	}
+
+	@Override
+	public void PostInit()
+	{
+
+	}
+
+}