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Seattle, WA · Pacific Northwest

Alternate Marine Power — DIY.

Complete solar kits for boats and yachts. Everything included. No electrician needed.

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100W Flexible Solar Panels
12/24/48V MPPT Smart Controller
30 Days Full Refund Window
$0 Restocking Fees

Two Kits. One Goal.

Both kits ship complete. No extra parts needed.

On Sale

Flexible Panel Soft-Top to Boat Arch Solar Solution

$649 $499 SAVE $150 — Limited Time
  • 1× 100W flexible solar panel (22.7" × 38.4") with 35' cable leads
  • 1× 500/20 MPPT SmartSolar Bluetooth controller (12/24/48V)
  • 1× 100V 2-pole DC Electrical Breaker
  • 25 ft 10AWG Red and Black Solar Cables
  • Wire fishing tool
  • 8× High-strength rare-earth 1" round magnets
  • Accessory kit: dip ties, copper terminal connectors, wire connectors
  • 1× Housing gland for arch cable connection
Buy Now — $499
Best Value

Two Panel Soft-Top Solar Panel Kit

$729 $579 SAVE $150 — Limited Time
  • 2× 100W flexible solar panels — doubled output for larger vessels
  • 1× MPPT SmartSolar Bluetooth controller (12/24/48V)
  • 1× 100V 2-pole DC Electrical Breaker
  • 25 ft 10AWG Red and Black Solar Cables
  • Wire fishing tool, rare-earth magnets, full accessory kit
  • Designed for two-panel soft-top or arch installs
Buy Now — $579

Built for buildings.
Deadly on boats.

Shore power cords on land. That cord running to your dock is the leading cause of marina fires in the US — and most owners learn that the hard way.

$95,000 in Damage

A 50-foot yacht caught fire from an arcing shore power cord. Two 100-watt solar panels would have handled the entire load.

The solution is simpler than you think.

The smarter choice is already available.

  • Silent, clean power
  • Stay out longer
  • Reduce fire risk
  • DIY install

Browse our complete DIY kits above, or call us at 1-888-440-6457.

See how solar keeps your battery charged — and your generator off.

Solar panels charge your battery bank directly. The more your battery stays charged, the less your generator needs to run. Adjust the inputs below to see your estimated savings.

Select your kit

Single panel kit

100W · $499 · ~32 Ah/day

Two panel kit

200W · $579 · ~64 Ah/day

Generator size

Small

Under 5 kW · 0.3 GPH

Medium

5–10 kW · 0.5 GPH

Large

10 kW+ · 0.9 GPH

Your usage

Day Boater

Lights, navigation instruments, radio, phone charging — out for the day, back at the dock by evening.

Weekend Cruiser

Adds refrigeration, entertainment system, and autopilot — anchoring out overnight on weekends.

Extended Cruiser / Liveaboard

Full appliances, watermaker, inverter loads — living aboard or taking extended trips away from the dock.

$4.50

Solar covers

Monthly fuel saved

Annual fuel saved

Kit pays off in

Based on Pacific Northwest average of 4.5 peak sun hours per day and 85% panel efficiency. A 100W panel produces approximately 382 Wh (31.8 Ah at 12V) per day. A 200W panel produces approximately 765 Wh (63.75 Ah at 12V) per day. Generator fuel consumption based on manufacturer specifications: small generators (under 5 kW) 0.3 GPH, medium (5–10 kW) 0.5 GPH, large (10 kW+) 0.9 GPH. Generator run cycles assumed at 3–4 hours per cycle. Monthly savings based on 8 active boating days per month. Actual results vary by location, vessel, battery type, and usage patterns.

You install it. We make it simple.

No electrician needed. Everything ships in one box. Shop kits →

01

Order your kit

Choose the single or two-panel kit based on your vessel size and power needs.

02

Receive everything

One box. Panels, controller, breaker, cables, magnets, tools, and all hardware included.

03

Install yourself

Integrates with your existing electrical system. Rare-earth magnets simplify panel positioning.

04

Monitor via Bluetooth

Pair the MPPT SmartSolar controller with your phone. Track output and battery health in real time.

Quality products.
Honest service.

Seattle-based. We sell complete kits and stand behind them.

Marine-Grade Components

Components withstand moisture, salt air, vibration, and UV exposure.

Bluetooth Smart Controller

Real-time monitoring from your phone. Compatible with 12V, 24V, and 48V systems.

One Box — Complete Kit

No surprise add-ons. Everything you need to install is in the box.

Real Support

Call or email us. You reach a real person who can answer your installation questions. Contact us →

Clean Power. Open Water.

Shore power cords drain budgets. Generator noise kills the experience. We started Alternate Marine Power to bring professional-grade marine solar directly to boat owners in the Pacific Northwest, complete and ready to install.

Every kit we sell is one less combustion engine running, one less shore power cord in the water.

Solar power isn't the future of boating. It's the right choice today. Shop our kits →

Simple. No restocking fees.

Return any kit, used or unused, within 30 days. No questions asked—no restocking fees.

31–90 Days
Store Credit

Full store credit toward any future purchase. Cash refunds are not available after 30 days.

90+ Days
Contact Us

Returns not accepted after 90 days. Contact us — we'll discuss warranty options.

Customer is responsible for return shipping unless the return is due to our error or a product defect, in which case we provide a prepaid label. Have questions? Contact us or email info@AlternateMarinePower.com.

Return Address

Alternate Marine Power LLC

PO Box 1611, Renton, WA 98057

Not sure which kit? Ask us.

Tell us about your vessel, and we'll point you to the right kit.