Green Mountain
Pollution Free Conserve 12 Preferred
Rate
18.90¢
Term
12 Months
$1000 kWh
$189
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
Best for Green Energy Green Mountain in San Leon
Green Mountain in San Leon.
Green Mountain has 5 plans live on the TNMP grid serving San Leon. Lowest rate 18.90¢/kWh.
4.3 · TNMP grid · 5K residents · Galveston County
Green Mountain in San Leon
By the numbers.
Lowest here
18.90¢
Green Mountain in San Leon
San Leon avg
14.70¢
across all providers
Green Mountain plans
5
on TNMP
100% green
5
renewable plans
What you actually pay in San Leon
Energy charge vs the wires.
Green Mountain's cheapest plan in San Leon is 18.9¢/kWh all-in. That number is two parts: Green Mountain's energy charge, plus the TNMP delivery charge — the cost of the poles and wires, set by the PUCT and identical on every plan from every provider on this grid.
Green Mountain energy
13.6¢
TNMP delivery
5.3¢
All-in
18.9¢
At a typical 1,000 kWh month, that's about $189 — including the ~$7.85 TNMP meter charge. Because delivery is fixed, the only lever between providers in San Leon is the energy charge. Green Mountain's best rate ranks #17 of 18 providers on the TNMP grid.
Top Green Mountain picks for San Leon
Best Green Mountain plans here.
Green Mountain
Pollution Free Conserve 24 Preferred
Rate
18.90¢
Term
24 Months
$1000 kWh
$189
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
Green Mountain
Pollution Free e-Plus 24 Preferred
Rate
19.30¢
Term
24 Months
$1000 kWh
$193
Rates as of July 2026 · verify on the EFL
- ✓ 100% green energy
- ✓ 24 month
- ✓ Low fixed price
Every Green Mountain plan on TNMP
All 5 Green Mountain plans in San Leon.
| # | Plan | Rate | |
|---|---|---|---|
| 1 | Pollution Free Conserve 12 Preferred | 18.90¢ | View → |
| 2 | Pollution Free Conserve 24 Preferred | 18.90¢ | View → |
| 3 | Pollution Free e-Plus 24 Preferred | 19.30¢ | View → |
| 4 | Pollution Free e-Plus 12 Preferred | 19.30¢ | View → |
| 5 | Pollution Free Green Savings Plus 24 Preferred | 23.40¢ | View → |
San Leon, Galveston County — population 5K, sample ZIP 77539. Served by TNMP (outage line: 1-888-866-7456).
Switching in San Leon
Same wires — new bill from Green Mountain.
TNMP owns the wires in San Leon and processes the switch in 1-3 business days — no service interruption, no truck roll, no new equipment. Green Mountain files the switch on your behalf. Same-day if you order before 4-5 PM Central.
Green Mountain in San Leon — FAQ
Common questions.
Does Green Mountain serve San Leon, TX?
Yes. Green Mountain offers 5 plans in San Leon on the TNMP grid, starting at 18.9¢/kWh all-in. Enrollment is online and service is delivered by TNMP.
What's the delivery charge in San Leon?
TNMP charges about 5.3¢/kWh plus ~$7.85/month to deliver power in San Leon. This is set by the PUCT and is identical on every plan — from Green Mountain or any other provider — so the only number that actually differs between providers is the energy charge.
Where does Green Mountain rank on price in San Leon?
Green Mountain's lowest San Leon rate ranks #17 of 18 providers serving the TNMP grid. The cheapest plan overall in San Leon is 8.3¢/kWh; Green Mountain's best is 18.9¢/kWh.
How long does it take to switch to Green Mountain in San Leon?
1 to 3 business days. TNMP keeps delivering power the whole time — no interruption, no new meter, no truck roll. Order before roughly 4–5 PM Central on a weekday and same-day switching is usually available.
More on Green Mountain
Explore Green Mountain.
Compare Green Mountain plans in San Leon
See how Green Mountain's 5 plans stack up at your real San Leon usage.
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How enrollment works
You pick the plan here. Enrollment finishes on our secure checkout — same rate, no markup. If you'd rather skip the ZIP entry, Live Link pulls your real usage from Smart Meter Texas in about 30 seconds. Same plans, same checkout, less typing.