American Terawatt · underground HVDC

Corridor Delivery Plan

Buried high-voltage line, route to firm power at your site.

What It Is

A 200-mile strip of land with a DC cable buried under it, carrying 2 GW of firm power from generation to your site.

How It Is Built

Five steps, each ending in a decision. Land, permits and equipment are secured one step at a time, so a route that hits a problem stops early rather than half built.

Why Several Routes

Not every route clears every step. Several run in parallel so the power still arrives on schedule.

The Plan

The Five Steps

Nothing in a later step is committed until the one before it is done.

Step	What must be true	Chance it clears

Schedule, One Corridor

Each bar is a workstream. Dotted lines are the five decisions.

Step 1, generation Step 2, permits and land Step 3, closing Step 4, cabling Step 5, energization

Routes Surviving Each Step

Chance at Least One Delivers

Across every route developed.

Expected Capacity Energized

Routes clearing all five steps, times capacity each.

Time to First Power

Months from start.

Value to You

Your value per GW, set in the controls below.

One Corridor, Energized

Capacity times value per GW.

Value in Today's Money

Discounted back from month ·.

Expected Across the Programme

Weighted by the capacity expected to energize.

Assumptions

Every figure above is driven by these. The step odds are our judgement today.

Routes developedRun in parallel10

Capacity per corridorFirm delivered power2 GW

Step 1, generation lockedExclusivity signed, route confirmed60%

Route lengthBuried distance200 mi

Step 2, permits and landEngineering, easements, environmental, permits40%

Equipment lead timeOrder to delivery on site36 mo

Step 3, closingLast parcels closed, financing closed80%

Step 4, cablingCorridor cabling to plan95%

Step 5, energizationConverters delivered, installed, tested97%

Value per GW to youWhat firm power is worth at your site$2.5B

Your cost of capitalUsed to discount future value15%

Timing of each step

Step 1Network planning, exclusivity3 mo

Step 2Engineering, easements, environmental, permits9 mo

Step 3Closing, last parcels, detailed design9 mo

Step 4Corridor cabling12 mo

Step 5Converters and integration12 mo

Terms used on this page

HVDC: High voltage direct current. Lower losses than AC over long distances.
Corridor: The strip of land the cable runs beneath, assembled from hundreds of private parcels.
Easement: A paid, permanent right to run cable under land the owner keeps. Agreed, not taken.
Converter station: Plant at each end converting AC to DC. Lead times run 36 to 60 months industry wide.
Firm power: Available on demand, not only when generation is running.