Abstract
Distributed generation takes advantage of small on-site renewable energy sources (solar, wind, geothermal and wave energies) deployed at individual houses to provide electrical energy. In this way, electricity will be generated more efficiently especially by reducing demand peaks. In this paper, the electrical energy balance of a typical residential building is modeled. The grid-connected house is also in connection with a hybrid wind turbine and photovoltaic array together with a battery storage system. The cost of electricity purchased from the electrical grid was optimized to its minimum level using general algebraic modelling system. The results showed that, considering a load profile with 21.675kWh for daily consumption, a 3kW PV array with a 2kW wind turbine and a 5kWh battery could save 96% of the monthly electricity bill; from 2'377 to 66'960 dollars. Excluding battery storage, this saving was reduced to 74%.
| Original language | English |
|---|---|
| Pages (from-to) | 777-783 |
| Number of pages | 7 |
| Journal | International Journal of Renewable Energy Research |
| Volume | 4 |
| Issue number | 3 |
| Publication status | Published - 2014 |
| Externally published | Yes |
Keywords
- Energy cost optimization
- Energy efficient buildings
- Energy storage
- General algebraic modelling system
