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REC RZMP-205-T
REC Brand review

RZMP-205-T

205 Wp Polycrystalline
ComparePV verdict

Middle of its segment, modest efficiency

Rank 13,931 of 14,129
Compare panels Datasheet PDF
Power (Wp)
205
Typical for its class
Efficiency (%)
12.70
Weak · bottom 3%
Density (Wp/m²)
126.9
Weak · bottom 3%
Temp (%/°C)
-0.400
Weak · bottom 18%
Weight (kg)
21.5
Weak · 6.2 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

564 panels in the 105-305 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 12.70% 16.67% Weak · bottom 3% 14,100
Power density 126.9 166.4 Weak · bottom 3% 14,086
Temperature coefficient -0.400 -0.370 Weak · bottom 18% 13,798
Weight per kWp 104.9 67.6 Weak · bottom 6% 14,062
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

Tight roof space, roofs where every square metre has to count and weight-limited structures.

Watch-outs
12.70% module efficiency

Bottom 3% of the 105-305 W band, against a median of 16.67%. Ranked 14,100th in the whole database.

126.9 watts per square metre

Bottom 3% of the 105-305 W band, against a median of 166.4. Ranked 14,086th in the whole database.

104.9 kg per kWp

Bottom 6% of the 105-305 W band, against a median of 67.6. Ranked 14,062nd in the whole database.

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 12.7% is 9.1pp below average for database panels (median: 21.8%)
  • Power density of 126.9 W/m² is 91.2 W/m² below database median (218.1 W/m²) - needs more roof space
  • -0.40%/°C temperature coefficient - 0.10pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • Weight of 21.5 kg (5.0 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • In the top 100% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 205 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 12.70 % Weak Segment median 16.67%
Vmpp · Impp 27.90 V · 7.35 A Operating point at max power
Voc · Isc 35.90 V · 8.00 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1642×984 mm · 1.62 m² of roof
Weight 21.5 kg Weak Weak · 6.2 kg above median
Cells 60 Polycrystalline
Coefficient Pmax -0.400 %/°C Weak bottom 18% 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-205-T 205 W 12.70% -0.400 21.5 kg You are here
RS7E-205P 205 W 18.77% -0.390 12.0 kg Lighter, +6.1 pp, +5 yr warranty
RS7E-200P 200 W 18.32% -0.390 12.0 kg Lighter, +5.6 pp, +5 yr warranty
RS7E-195P 195 W 17.86% -0.390 12.0 kg Lighter, +5.2 pp, +5 yr warranty
MYP3036-180 180 W 17.65% -0.370 11.3 kg Cooler, lighter, +4.9 pp
MYP3036-180 180 W 17.65% -0.370 11.3 kg Cooler, lighter, +4.9 pp
MYP3048-235 235 W 17.54% -0.370 12.5 kg Cooler, lighter, +4.8 pp
MYP3048-235 235 W 17.54% -0.370 15.2 kg Cooler, lighter, +4.8 pp
RS7E-190P 190 W 17.40% -0.390 12.0 kg Lighter, +4.7 pp, +5 yr warranty
MYP3048-230 230 W 17.16% -0.370 12.5 kg Cooler, lighter, +4.5 pp
MYP3036-175 175 W 17.16% -0.370 11.3 kg Cooler, lighter, +4.5 pp
RZMP-200-T 200 W 12.40% -0.400 21.5 kg -0.3 pp
RZMP-210-T 210 W 13.00% -0.400 21.5 kg +0.3 pp
RZMP-215-T 215 W 13.40% -0.400 21.5 kg +10 W, +0.7 pp
RZMP-220-T 220 W 13.70% -0.400 21.5 kg +15 W, +1.0 pp
RZMP-225-T 225 W 14.00% -0.400 21.5 kg +20 W, +1.3 pp
RZMP-230-T 230 W 14.30% -0.400 21.5 kg +25 W, +1.6 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg +195 W, +9.9 pp, +15 yr warranty

Found 190 panels of the same or similar size to this one, within ±10 mm. See them here Found 247 panels of the same or similar size to this one, within ±25 mm. See them here Found 394 panels of the same or similar size to this one, within ±50 mm. See them here Found 487 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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