Best 300 Watt Solar Panel

Going off the grid can be quite the hassle. The simple thought of being without electricity should deter anyone; even if it means sacrificing the simple joy for a boat or RV ride – or quality family time in a secluded camp site. But what if you had the best 300 watt solar panel to slug it out with you on your time away from civilization?

Forget figures, whether it is 150 Watt solar panel you need, or it is a 1000 watt solar panel you need for off grid applications – when you finally come up with a real life figure of what your power needs demands in amps per day, then you’ll need to find a panel that will quite suitably provide all that you need – and perhaps a little more.

However, if you have worked out that what you need will be met by a 300 watt solar panel capacity, and you are looking to buy the best 300 watt solar panel, here are a few options from which to choose. Research is such a hassle, so we have brought your options to you.

Renogy Eclipse Solar Premium Kit

300 W Solar panel specs

Manufacturer: Renogy
Peak power: 300W
Maximum voltage: 18.12V
Maximum current: 8.28A
Open circuit voltage: 22V
Short circuit current: 8.72A
Power tolerance: 0/+3%
Dimensions: 47 x 21 x 4.5 inches Weight: 59 Pounds
Warranty:

The Renogy 300Watt 12 V eclipse solar premium kit is a 300W solar panel capacity kit that comes in a set of 3 100Watt eclipse solar panels complete with a 40A MPPT charge controller, three sets of mounting Z-Brackers, One 20ft 10AWG MC4 adaptor kit, an 8ft Tray Cable, fusing components and an MT-50 Tracer Meter.

This kit is a perfect choice of you’re looking to purchase all you need for mounting and installation in one fell swoop – and additional components such as the tracer meter and fusing components enable you to conveniently monitor system performance and enhance controller and battery protection respectively.  To further enhance performance and durability, the premium panels pack a thicker layer of tempered glass which confer additional weight to the panels, but improve efficiency notably.

Pros

  • Mounting and wiring is quite straight forward
  • High quality panels that designed with tempered glass that improve efficiency
  • Components ensure that system performance is monitored thoroughly, and controller and batteries are effectively protected.

Cons

  • The included Z brackets require additional waterproofing
  • Kit does not include batteries, fuses and battery wire (make sure you purchase at least a 150ah battery for this kit)

ACOPower Solar Panel, 300W Polycrystalline PV Panel

300 W Solar panel specs (per 100 watt panel)

Manufacturer: AcoPower
Peak power: 100W
Maximum  voltage: 18V
Maximum current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 42.25 x 27.5 x 1.38 inches
Weight: 20.9 Pounds
Warranty: 5 years workshop warranty and 20 years output warranty

The Acopower solar panel 300Watt set is a great pick if you’re looking to purchase 300 watt solar panels without an accompanying kit. Each panels only come with 35 inch 12AWG cables and MC4 male/female quick connectors.

Each of the Acopower solar panel are rated 100W and tucked within lightweight frames made of aluminum, and further reinforced by 3.2mm thick antireflection coated glass which allow the panels to perform at optimum rates while improving durability.

The panels are a great pick for off-grid applications – thus, are relatively compact and are easy to mount or dismantle. Not to mention , the IP-65 rated water proof junction box allow for several other off grid applications including marine, RVS or beach use. Additionally, they can be used in virtually any small PV system or small household lightening system.

Pros
• Robust design and outstanding quality
• Charge controller rating could peak at up to 5.9a
• Preinstalled mount holes
Cons
• Connecting wiring not included

ECO-WORTHY 300 Watt (2PC 160W) Polycrystalline Off Grid Solar Panel Kit

300 W Solar panel specs (per 160 watt panel)

Manufacturer: Eco-Worthy
Peak power: 160W
Maximum voltage: 18.7V
Maximum current: 8.04A
Open circuit voltage: 22.25V
Short circuit current: 8.57A
Power tolerance: 0/+3%
Dimensions: 58.2 x 26.61 x 1.4 inches
Weight: 20.9 Pounds
Warranty: 5 years material & workmanship warranty

Each Eco-worthy 300 Watt solar panel kit contains two polycrystalline solar panels rated 160W each and includes Z mounting brackets along with a 12AWG Extension Solar Cable an MC4 Connector and a 20A Auto Switch LCD Intelligent Charge Controller.

The panels are encased in a corrosion-resistant aluminum frame and feature advanced water and dust proof qualities which guarantee outdoor use with minimal deterioration, and the high-efficiency silicon solar cells ensure maximum power output. Further more, Panels are easy to set up with pre-drilled holes and the pre-installed by-pass diodes minimize power drop caused by shade and providing output even in minimal light.

While the unit may not be sufficient to power your house, you will get up to 12v/24v worth of power supply. Its major application are RV’s for off-grid use, and perhaps shed’s that require 12v worth of power.

Pros
• High-efficiency silicon solar cells ensure high performance of solar modules and create maximum power output
• Corrosion-resistant aluminum frame for extended outdoor use, allowing the solar panels to last for decades as well as withstand high winds (2400Pa) and snow loads

Cons

• Controller maxes at 960

WindyNation 300 Watt (3pcs 100 Watt) 12V Solar Panel Off-Grid RV Boat Kit

Manufacturer: WindyNation
Peak power: 300W
Maximum power voltage: 18V
Maximum power current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 40 x 1.2 x 26 inches Weight: 63 Pounds
Warranty: 5 years

The Windy Nation 300 Watt solar panel kit comes with everything from 3 100 Watt Solar Panels to a 30-Amp Charge Controller complete with its battery temperature tensor and also a  40 ft of 12 AWG Solar Cable. It also includes all necessary MC4 Connectors for wiring – including a pair of MC4 Connectors and 2 Pairs of MC4 Branch Connectors; as well as all the necessary mounting hardware, i.e., 12 Solar Panel Mounting Bracket and Fastener Sets – so, pretty much everything you need to start producing free, clean power from the sun. Simply add a 12-volt battery and a DC-to-AC inverter, and you are ready to go.

The kit also includes a PWM solar charge controller that features a digital display which provides comprehensive system information in and out of use. Ultimately, this WindyNation solar panel kit is the ideal solution for providing backup power or off-grid power when you need it.

Pros
• Depending on sunlight availability, the kit may provide up to 101 Amp hours of charge per day
• Additionally, LCD Screen displays system functions
• Includes virtually all required mounting hardware

Cons
• No provision to minimize power drop.

Grape Solar GS-300-KIT 300-Watt Off-Grid Solar Panel Kit

Manufacturer: Grape Solar
Peak power: 300W
Maximum  voltage: 18V
Maximum  current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 40 x 1.2 x 26 inches Weight: 63 Pounds
Warranty: 5 years workshop warranty and 20 years output warranty

The Grape Solar 300-watt kit includes 3-piece Grape Solar GS-STAR-100W 100-watt polycrystalline solar panels, a 35 amp Xantrex charge controller, 2,000-watt pure-sine Xantrex inverter with two outlets and 1 USB port, cables and manual.

Its design is fitted in an anodized aluminum frame and a sealed junction box which makes the panel weatherproof for outdoor use. Hence set up is ideal for a variety of applications, including RV”s, boats, 12-volt battery charging, small pumps, charging small electronic devices and operating led lights. Further more, the panels are made with high efficiency crystalline solar cells for years of service and are equipped with two diode bypass which minimizes power drop caused by shade. Overall, this solar kit is both easy to install and virtually maintenance free, not to mention, it can provide approximately 900-watt-hours or 75 amp hours of charge per day.

Pros
• Panels work well even on cloudy or overcast days
• Comes with cables and set up hardware which makes for easy mounting and securing

Cons
• Included PV wires may be too short for your functions.

HQST 300 Watt 12 Volt Polycrystalline Solar Panel Kit

Manufacturer: HQST
Peak power: 300W
Maximum voltage: 18V
Maximum current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 40 x 1.2 x 26 inches Weight: 63 Pounds
Warranty: 5 years

This HQST solar panel kit prides itself in being beginner-friendly features. While these features may not be unique, they set the kit apart from the generic kit market. The kit comes complete with three 100W 12V polycrystalline solar panels, a 30A PWM LCD charge controller, a pair of 20 AWG 10 adaptor cables, three sets of Z-brackets, and also necessary mounting hardware. Consequently, With the 30A PWM charge controller, you can expand your system up to a maximum of 400W.
Set up is a breeze with pre-drilled holes on panels and Z brackets for fast mounting and securing – also, performance is seamless, providing power in off-grid applications hence there is no inconvenience of fuel costs or noise

Pros
• pre-drilled holes on panels and Z brackets for fast mounting and securing

• The 30A PWM charge controller is present. Hence, you can expand your system up to a maximum of 400W
Cons

Leads on the panels may be too short when placing them side by side

Renogy 300 Watt 12 Volt Monocrystalline Solar Starter Kit with Wanderer

Manufacturer: Renogy
Peak power: 300W
Maximum  voltage: 18V
Maximum  current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 40 x 1.2 x 26 inches Weight: 63 Pounds
Warranty: 5 years workshop warranty and 20 years output warranty

The Renogy 300 Watt 12 Volt Monocrystalline Solar Starter Kit with Wanderer is nothing like the Renogy premium kit, however this is a scaled down cheaper version for beginner solarists and contains Three Renogy 100 Watt monocrystalline solar panels (Grade A high-Efficiency solar panel) as well as a charge controller which has been upgraded to Renogy 30A PWM negative-ground charge controller with which you can expand your system up to a maximum of 400W.

The kit also includes an 8ft 10AWG Tray Cable to connect your charge controller and battery.
also , Two pairs of branch connectors included for parallel connection; three sets of Z brackets for mounting. The Starter Kit is great for off-grid applications, such as RVs, trailers, boats, sheds, and cabins

Pros
• Affordable – in comparison to Renogy premium kit
• charge controller has been upgraded to Renogy 30A PWM making it possible for expansion of up to 400W

Cons
charge controller caps the battery voltage at about 13.8-14 volts which is pretty low

300W Mono Solar Panel, 3pc 100W Photovoltaic Panel for 12 Voltage Battery Charging

Manufacturer: Power Eco
Peak power: 300W
Maximum  voltage: 18V
Maximum  current: 5.56A
Open circuit voltage: 22.2V
Short circuit current: 5.89A
Power tolerance: 0/+3%
Dimensions: 40 x 1.2 x 26 inches Weight: 63 Pounds
Warranty: 5 years workshop warranty and 20 years output warranty

The 300W solar panel kit by PowerEco is a triad of 100 W Mono Solar Panel. Hence, you are guaranteed to get 300 Watt power and 500-watt-hours depending on sunlight availability. Additionally, the panels are made of lightweight anodized aluminum frame and reinforced safety and anti-reflection coated glass 3.2mm thick and waterproof IP-65 rated junction box which allows for extended durability. Installation is a breeze with pre-drilled holes, and also because each solar panel comes with 90cm 12awg cable with mc4 male/female quick connectors

The kit is perfect for 12-volt battery charging as well as for , caravan, RVs, cars , boats, greenhouse solar systems otherwise courtyard lighting, small household lighting system or other small power electrical devices.

Pros
• Can provide up to 500-watt hours depending on sunlight availability
• panels are made of lightweight anodized aluminum frame and reinforced safety and anti-reflection coated glass and overall, the design improves durabiltiy

Cons
• No arrangements made to minimize power drop in low light situations

CHOOSING THE BEST 300 WATT SOLAR PANEL FOR YOU

The key to finding the best 300 watt solar panel – or any other solar panel for that matter, would be to estimate your energy needs by  running a practical test of your own by  monitoring the electricity you expend. If this is anrather impractical means of reaching an estimation, you can estimate your power needs using the power ratings given on every single piece of equipment you intend to power from the battery.