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REC RZMP-145-T
REC Brand review

RZMP-145-T

145 Wp Polycrystalline
ComparePV verdict

Middle of its segment, heavy for its output

Rank 13,909 of 14,129
Compare panels Datasheet PDF
Power (Wp)
145
Typical for its class
Efficiency (%)
14.50
Weak · bottom 17%
Density (Wp/m²)
144.8
Weak · bottom 19%
Temp (%/°C)
-0.400
Weak · bottom 10%
Weight (kg)
14.6
Weak · 3.1 kg above median
Warranty (yrs)
25
Typical · median 25 yrs

The REC RZMP PV Modules are designed to maximize energy yield under real operating conditions - even when the roof is partially shaded and the weather is variable. A key advantage is the advanced n-type cell technology, which helps to minimize typical power losses and maintain stable production over a longer period. The high-power density design also deserves attention, as it allows for extracting more energy from a limited roof area without compromising the aesthetics of the installation.

In practice, this series solves two common problems for investors: lack of space and reduced performance in poor lighting conditions. The modules offer improved performance in low-light conditions and high resistance to degradation, which translates into predictable production and investment security.

REC RZMP PV Modules are the ideal choice for single-family homes and demanding commercial installations, where high performance, durability, and technological superiority over standard PERC modules are essential.

Ranking

350 panels in the 45-245 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 14.50% 16.01% Weak · bottom 17% 14,007
Power density 144.8 159.9 Weak · bottom 19% 13,989
Temperature coefficient -0.400 -0.370 Weak · bottom 10% 13,798
Weight per kWp 100.7 70.0 Weak · bottom 9% 14,045
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 7 caution
Best for

Residential and commercial.

Not ideal for

Weight-limited structures, hot climates and tight roof space.

Watch-outs
100.7 kg per kWp

Bottom 9% of the 45-245 W band, against a median of 70.0. Ranked 14,045th in the whole database.

-0.400 %/°C temperature coefficient

Bottom 10% of the 45-245 W band, against a median of -0.370.

14.50% module efficiency

Bottom 17% of the 45-245 W band, against a median of 16.01%.

What owners get
Tier-1 manufacturer with 30 years on the market

REC has operated since 1996 (Norway) and is classified as a Tier-1/bankable manufacturer, which eases project financing with banks and institutional investors compared to lesser-known brands like Isola New Energy or LinkSol.

Full 25-year product and power warranty

The RZMP series carries a 25-year warranty on both the product and power output - a standard matching current market expectations, even though the module design itself dates to an earlier technology generation (2008).

Long field track record since 2008

The series has been produced continuously since 2008, meaning over 15 years of real-world field data - an advantage when assessing actual power degradation compared to newer series lacking long-term operational history.

Compact power variants (105-240 Wp)

18 variants spanning 105-240 Wp offer flexibility for non-standard mounting surfaces or smaller installations where full-size 400+ Wp modules may not fit geometrically.

Trade-offs
Efficiency clearly below peer comparables

Efficiency of 10.5-14.9% is significantly lower than comparable series: Isola New Energy 210M SPLIT CELL reaches 20.83%, LinkSol LKS-5M 18.8%, and TPL Solar P-54 16.01%. This means up to 40-70% lower energy yield per unit of roof area.

Marketing description mismatches specifications

Marketing materials describe the series as using 'advanced n-type cell technology', yet independent data (e.g. the RZMP-135-T variant, 13.5% efficiency, polycrystalline cells) points to older poly-Si technology typical of 13-16% efficiency, not n-type (typically 21-23%). Buyers should verify the actual cell technology before purchase.

2008-era technology - lacks modern features

The series dates back roughly 18 years and does not incorporate features common in current premium modules, such as half-cut cells, multi-busbar design, or bifacial technology (is_bifacial: false), limiting its competitiveness against newer peer series.

Low power density limits commercial use cases

At 10.5-14.9% efficiency, matching the installed capacity of peer series with 16-20.83% efficiency requires significantly more roof area, making RZMP a less attractive choice for commercial installations with limited space.

Notes from the database
  • Module efficiency of 14.5% is 7.3pp below average for database panels (median: 21.8%)
  • At 144.8 W/m², this panel generates 73.3 W/m² less per unit area than database median (218.1 W/m²)
  • -0.40%/°C temperature coefficient - 0.10pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • At 14.6 kg, this panel is 11.9 kg lighter than database median (26.5 kg) - easier handling during installation
  • Ranked #14007 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 145 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 14.50 % Weak Segment median 16.01%
Vmpp · Impp 17.50 V · 8.25 A Operating point at max power
Voc · Isc 22.60 V · 8.75 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1490×672 mm · 1.00 m² of roof
Weight 14.6 kg Weak Weak · 3.1 kg above median
Cells 60 Polycrystalline
Coefficient Pmax -0.400 %/°C Weak bottom 10% of its segment
Coefficient Voc · Isc -0.270 · 0.200 %/°C
NOCT 47 °C At 800 W/m², 20 °C ambient
Product warranty 25 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.400 %/°C against a segment median of -0.370
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
REC RZMP-145-T 145 W 14.50% -0.400 14.6 kg You are here
RS7E-195P 195 W 17.86% -0.390 12.0 kg +50 W, +3.4 pp, +5 yr warranty
MYP3036-180 180 W 17.65% -0.370 11.3 kg +35 W, lighter, +3.1 pp
MYP3036-180 180 W 17.65% -0.370 11.3 kg +35 W, lighter, +3.1 pp
RS7E-190P 190 W 17.40% -0.390 12.0 kg +45 W, +2.9 pp, +5 yr warranty
MYP3036-175 175 W 17.16% -0.370 11.3 kg Cooler, lighter, +2.7 pp
MYP3036-175 175 W 17.16% -0.370 11.3 kg Cooler, lighter, +2.7 pp
MYM2036-170 170 W 17.10% -0.370 11.2 kg Cooler, lighter, +2.6 pp
RS7E-185P 185 W 16.94% -0.390 12.0 kg +40 W, +2.4 pp, +5 yr warranty
WS-195 /24V 195 W 16.76% -0.386 13.0 kg +50 W, +2.3 pp, -15 yr warranty
RZMP-105-T 105 W 10.50% -0.400 14.6 kg -40 W, -4.0 pp
RZMP-110-T 110 W 11.00% -0.400 14.6 kg -35 W, -3.5 pp
RZMP-115-T 115 W 11.50% -0.400 14.6 kg -30 W, -3.0 pp
RZMP-120-T 120 W 12.00% -0.400 14.6 kg -25 W, -2.5 pp
RZMP-125-T 125 W 12.50% -0.400 14.6 kg -20 W, -2.0 pp
RZMP-130-T 130 W 13.00% -0.400 14.6 kg -15 W, -1.5 pp
RZMP-135-T 135 W 13.50% -0.400 14.6 kg -10 W, -1.0 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg +135 W, cooler, +8.8 pp

Found 95 panels of the same or similar size to this one, within ±10 mm. See them here Found 95 panels of the same or similar size to this one, within ±25 mm. See them here Found 97 panels of the same or similar size to this one, within ±50 mm. See them here Found 141 panels of the same or similar size to this one, within ±100 mm. See them here

About the RZMP PV Modules series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What warranty do the REC RZMP PV Modules come with and what does it cover?
The REC RZMP PV Modules series comes with a 25-year product warranty and a 25-year linear power output warranty. This means the manufacturer guarantees a defined performance level for the entire period and will cover any material or workmanship defects at no cost to the owner. As a Tier 1 manufacturer headquartered in Norway, REC has the financial standing to back these warranties for the full 25 years, giving investors genuine long-term security.
How does the n-type cell technology in the RZMP series differ from standard PERC modules?
The n-type cells used in REC RZMP PV Modules have significantly lower susceptibility to light-induced degradation (LID) and potential-induced degradation (PID) compared to conventional PERC technology. In practice, this means less power loss in the early years of operation and more stable energy production throughout the 25-year warranty period. N-type cells also achieve higher conversion efficiencies, which directly boosts the overall system output.
Will REC RZMP panels perform well on a partially shaded roof?
Yes, the REC RZMP PV Modules series is designed for real-world conditions, including partial shading from chimneys, dormers, or neighboring buildings. The advanced n-type cell technology minimizes power losses caused by uneven irradiance, and the high degradation resistance keeps output stable even in variable weather. For installations with heavy shading, pairing the modules with power optimizers or microinverters is also worth considering.
What is the rated power of one REC RZMP panel, and how many modules does a typical single-family home need?
Each module in the REC RZMP PV Modules series has a maximum rated power of 240 Wp. For a typical single-family home consuming around 3,500-5,000 kWh per year, a system of 4-6 kWp is usually needed, which translates to roughly 17-25 panels. The exact number is calculated by your installer based on annual consumption, roof orientation and tilt angle, and local irradiance data.
Are REC RZMP PV Modules a good choice for a commercial installation, such as a warehouse or industrial building?
Yes, the high power density of this series allows more energy to be harvested from a limited flat or pitched roof area, which is critical in commercial applications. N-type technology ensures low long-term degradation, and the 25-year product and power warranties align with the business requirements of investors calculating LCOE over decades. REC's Tier 1 status also simplifies project financing through banks and leasing institutions.
Do REC RZMP PV Modules perform efficiently in overcast conditions or cooler climates?
Yes, the RZMP series is engineered for low-light performance, which sets it apart from standard PERC modules. N-type cells feature a favorable temperature coefficient of power, meaning they lose less efficiency on cool days than average modules. The Central European climate - with many overcast days and moderate temperatures - is an environment where this technology delivers a measurable advantage.
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