New Twiddle

components.my-component-a.js

import Ember from 'ember';
import MyComponentB from './my-component-b';

export default Ember.Component.extend({
  paramComponentB: Ember.computed(function () {
  	return MyComponentB.create({
      paramValue: 'inner'
    });
  })
});

components.my-component-b.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

{{my-component-a paramComponent=(component 'my-component-b' paramValue='test')}}

templates.components.my-component-a.hbs

A component: {{component paramComponent}} <br>
A component: {{component paramComponentB}}

templates.components.my-component-b.hbs

B Component: Param: {{paramValue}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}