**3. Conclusion**

Paraffin uses in energy storage are now very important role of paraffin to overcome shortage of energy. Nanoparticles paraffin in energy storage become more advancement in energy storage. Many materials are used in energy storage as Phase Charge materials by mixing sodium dodecyl sulfate (SDS) surfactant, titania-silver nanocomposite particles scattered paraffin wax and nano size copper oxide. Response surface methodology RSM used to determine suitable position in the required space.
