Who is the creator of all Energy and Sources in the Universe?I want to know the name of the God.
Brahman is the both material and intellectual cause of creation in Vedanta:
सर्वं खल्विदं ब्रह्म तज्जलानिति शान्त उपासीत अथ खलु क्रतुमयः पुरुषो यथाक्रतुरस्मिल्लोके पुरुषो भवति तथेतः प्रेत्य भवति स क्रतुं कुर्वीतः । [Chandogya Upanishad: 3.14.1]
III-xiv-1: Verily, all this universe is Brahman. From Him do all things originate, into Him do they dissolve and by Him are they sustained. On Him should one meditate in tranquillity. For as is one’s faith, such indeed one is; and as is one’s faith in this.
Now, if you want to personify the above 'Brahman', you may call him Krishna/Vishnu by quoting verses from Bhagvad Gita, You may call him Shiva by quoting verses from Svestasvatara Upanishad. You may call him both Shiva and Narayana by quoting passages from Taittariya Aranyaka. You may call him Brahma by quoting passages from Satapatha Brahmana. You may call him Ganesha by quoting Ganapati Atharvashirsha. You may call Brahman as Shakti by quoting Devi Gita and Devi Bhagavatam and so on...
See my answer here for scriptual refrences of above points.