Cluster IThe Power Grid
DIY solar analytics — component modifications, charge tracking, and thermal properties of off-grid battery arrays.
Active Inventory: Portable Power Stations
EcoFlow River 3 & River 3 Plus
Deployed portable power units used for off-grid operations, field testing, and critical backup cycles.
| Parameter | EcoFlow River 3 | EcoFlow River 3 Plus |
|---|---|---|
| Capacity | 245 Wh |
286 Wh (expandable to 858 Wh) |
| AC Output | 300 W (X-Boost to 600W) |
600 W (X-Boost to 1200W) |
| Chemistry | LiFePO4 (LFP) |
LiFePO4 (LFP) |
| Cycle Life | 3,000+ cycles to 80% | 3,000+ cycles to 80% |
| Fast AC Charge | 320 W (0-100% in 1 hr) |
Fast charge (0-100% in 1 hr) |
| Solar Input | 110 W max (11-30V⎓8A) |
220 W max (11-50V⎓13A, 55V OCV limit) |
| UPS Switchover | <20 ms |
<10 ms (Pro-grade) |
| Weight | 7.8 lbs (3.5 kg) |
10.4 lbs (4.7 kg) |
| Dimensions | 10 × 8.3 × 4.4 in | 9.2 × 9.1 × 5.8 in |
Solar Array Management
Seasonal Tilt & Topology
Tracking tilt variations and series-parallel topologies for 100 W Eco-Worthy panels. Latitude-adjusted angles refreshed at each solstice and equinox.
| Season | Tilt Angle | Topology | String Voc |
|---|---|---|---|
| Winter | 56° | 3S2P | 67.2 V |
| Spring | 41° | 3S2P | 67.2 V |
| Summer | 18° | 2S3P | 44.8 V |
| Fall | 41° | 3S2P | 67.2 V |
Wiring Reference
MPPT Charge Controller Init
# Victron 150/45 - sample serial init for headless logger
mppt.connect(port="/dev/ttyUSB0", baud=19200)
mppt.set_battery_profile(
chemistry = "LiFePO4",
abs_v = 56.8,
float_v = 54.4,
eq_v = None, # disabled for LFP
temp_comp = 0 # disabled for LFP
)
mppt.log_interval(seconds=30)