Connecting the world need modern communication services? Communication services need communication base station every where? Communication base station need high quality power? Does every where has the energy source to provide the power? Good: Power capacity is large enough Difficulty: Not everywhere there are power grids and substations; Power transmission line cost high; Electrical instability in remote areas. Good: Easy implementation Difficulty: Maintenance cost high; Failure rate of DG is high; High cost of fuel consumption. Good: Renew , Clean, Every where Difficulty: Solar power generation time is limited; The demand for space and land is proportional to the demand for power capacity; Initial investment cost is high. Good: Renew , clean, low lost of power generation Difficulty: Higher requirement for wind speed range; Maintenance is difficult, maintenance cost high.
Only one is limitation, why not try hybrid? Use one’s advantages, make up other’s deficiencies
Application Scenario
Sites with long rainy days or serious unbalance of solar radiation in different seasons Average solar radiation: ≥3 kWh/m2/day Unavailable or unreliable grid power Remote sites requiring high reliability power Applicable to rebuilding of the traditional diesel generating sites, to reduce OPEX
TCO Comparison: Solar + DG hybrid solution VS Dual DG
Why using Lithium Ion Battery?
Advantage of lithium and VRLA battery hybrid solution
a) Charging and discharging can be customized as required b) BMS can communicate with battery sharing controller, battery sharing controller can dynamically adjust the charging and discharging logic according to the data of lithium battery. c) Lithium battery long life cycle and quick charge performance can be utilized well d) Old VRLA battery also can be used as standby, saving investment
