Once you get out past Battle Ground toward Yacolt, Amboy and Chelatchie, the solar conversation stops being about the roof. On acreage the roof is one option among several, and it is frequently not the best one.
When does a ground mount beat the roof?
Four situations, and most rural properties hit at least one:
- The house is shaded but the pasture is not — the most common reason by a distance out here
- The roof is near the end of its life, and nobody wants to pay to remove an array in six years
- The loads are agricultural — a well pump, a shop, cold storage — and larger than a house roof can serve
- The roof faces the wrong way, which a ground mount simply ignores
There is a fifth, quieter advantage: everything is reachable. Cleaning, inspection and repair happen from the ground rather than from a ladder, which lowers the cost of owning the system over twenty-five years.
What does a ground mount actually cost you?
The panels cost the same. What separates the quotes is the distance between the array and the meter, and this is where rural projects surprise people.
Current loses voltage over distance, so the further out the array sits, the heavier the conductors have to be to keep those losses acceptable — and copper is priced by the pound. Two hundred feet is not twice the cost of a hundred; it is more, because the wire gets thicker as well as longer. Add trenching, whatever the machine hits along the way, and a disconnect at the array, and you have the real number.
A ground-mount quote that does not itemise the trench is not a finished quote.
Where should it go on the property?
Rows have to be spaced so they do not shade one another when the December sun is low, which makes the footprint larger than the panel area alone. On working ground the right site is usually the awkward corner — the wet spot, the odd triangle, the piece the equipment turns around in anyway.
We site around the property rather than asking the property to work around the array.
What about the well and the outages?
This is the other rural reality. East Clark County sits at the end of long distribution lines through timber, and winter storms take them down. A grid-tied array shuts off during an outage by code, so on its own it does nothing for you.
If keeping the well pump, the freezer and the heat running matters — and on a property with no municipal water, it does — that requires a battery and a backup-capable inverter, specified at design time rather than added later. We generally build the backup around the well, refrigeration and a few essential circuits rather than the whole property, which keeps the battery a sensible size.
Permits on unincorporated land
Most addresses out here are reviewed by Clark County rather than a city. We confirm the review authority for your parcel, pull the permits and meet the inspector — and for ground mounts we establish the foundation approach from the soil rather than assuming driven piles will work everywhere.
Frequently Asked Questions
Is a ground mount better than a roof array on acreage?
Often, when the house is shaded, the roof is near replacement, the loads are agricultural or the roof faces the wrong way. Ground mounts are also far easier to clean, inspect and repair over the system’s life.
How much does distance from the meter add to a ground mount?
More than people expect. Conductors have to grow heavier over distance to limit voltage drop, so 200 feet costs more than twice what 100 feet does — plus trenching, ground restoration and a disconnect at the array.
How much land does a ground-mounted array need?
More than the panel area, because rows must be spaced to avoid shading each other at low winter sun angles. On working land we site arrays on the least productive corner rather than the best field.
Will solar keep my well pump running in an outage?
Only with battery storage and a backup-capable inverter. Grid-tied systems shut down during outages by code. On rural properties we usually build backup around the well, refrigeration and a few essential circuits.
Who issues permits for rural Clark County properties?
Most unincorporated addresses are reviewed by Clark County rather than a city. We confirm the authority for your parcel and handle the permits and inspections either way.
Got land and a shaded roof?
Call 360-313-7190 and we will price the trench honestly along with the array. Sunbridge Solar serves Battle Ground, Yacolt, Amboy, Camas, Washougal, Vancouver and the Columbia River Gorge.
