This is the most expensive upgrade we have done but I have to say it has been worth every penny. The most expensive item were the batteries at £699 each, and we have two, but the Smart Lithium Iron Phosphate are very safe and there is an app we can use on our phones to monitor them.
We went for four 160 watt panels that we spread round the roof with the aim of catching the sun at anytime of the day. The panels are quite light so didn’t add much to the payload. Having this amount of solar means we don’t have to plug in to EHU when we are away and don’t have to worry about running out, even on cloudy days.
Below is all the kit we used with costings.
| Description | Quantity | Item Price | Item Total |
| 160 Watt 12 Volt Monocrystalline Solar Panel RNG-160D-SS-EU | 4 | 110.14 | 440.56 |
| 1 x Solar MC4 Y Branch Connectors MFFFF + FMMMM Pair RNG-CNCT-MC4BC-EU | 1 | 17.98 | 17.98 |
| 4 x MC4 Waterproof In-Line Fuse Holder w/ Fuse (FUSE Amp: 20A) RNG-CNCT-FUSE20-EU | 4 | 10.99 | 43.96 |
| 15 Feet 10AWG (6 mm2) Solar Extension Cable with MC4 Female and Male RNG-EXTCB-15FT-10-UK | 2 | 12.99 | 25.98 |
| DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT RBC50D1S-EU | 1 | 215.98 | 215.98 |
| 2000W 12V Pure Sine Wave Inverter With English Standard Socket R-INVT-PUH1-201235-UK | 1 | 259.99 | 259.99 |
| 12V 100Ah Smart Lithium Iron Phosphate Battery RBT100LFP12S-EU | 2 | 699.99 | 1399.98 |
| BT-2 Bluetooth Module RCM-BT2-UK | 1 | 26.98 | 26.98 |
| Monitoring Screen for Smart Lithium Battery Series RMS-LFPS-EU | 1 | 35.99 | 35.99 |
| Cable Entry Housing RNG-MTS-CE-EU | 1 | 8.98 | 8.98 |
| Solar Panel Roof Drill-Free Corner Bracket Mount RNG-MTS-CB-EU | 4 | 21.99 | 87.96 |
| 2564.34 |
