Corrosive volcanic silt
Foundation
Split Rail Foundation
Continuous slipform ballast. Match the foundation to clay, cobble, slope, and standing water. 0 piles.
Product
StormTracker — same mechanicals, drives and controls, every ground
Same mechanicals, drives and controls on every plant. Split Rail is slipformed ballast on an A-frame — 85 m³/MWdc at 35 m•s (78 mph), 98 m³/MWdc at 47 m•s (105 mph), 0 piles. The driven-post version has no A-frame. Cable earth anchors are a 2027 NPI foundation.
Subsurface rock
Foundation
Full Reflector Foundation
Slipformed ballast you can see — albedo and soiling control. Same A-frame as Split Rail.
Active clays
Foundation
Precast / Cast-in-Place
Precast or CIP concrete. Same A-frame as Split Rail. Use when slipform is not the path for that land.
Basalt flows
When a driven pile refuses
Micropile
Small-diameter piles, drilled and grouted. No A-frame — same mechanicals, drives and controls as the rest of the plant. For rock, cobble, and hardpan — ground that will not take a driven post.
Corrosive cotton soils
When the site takes a post
Steel Pile
Single pile when the ground will take a driven or drilled post. No A-frame — same mechanicals, drives and controls as the ballast plant.
Remote islands / off-grid
2027 NPI
Cable earth anchors
Cable anchors when the site is too remote to ship in concrete or steel piles. Separate 2027 NPI foundation.