--- title: "SP Enerji SP-310M60 310W Solar Panel - Specs & Review | ComparePV" description: "SP Enerji SP-310M60 310W solar panel. Specs: 19.05% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sp-enerji-sp-310m60" updated: 2026-09-11 --- # SP Enerji SP-310M60 Middle of its segment, weak in heat 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** SP Enerji - **Model:** SP-310M60 - **Series:** Solar Power 300 W - 320 W (Mono-Crystalline Photovoltaic Module) - **Rated power:** 310 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 310 W | 325 W | Weak - bottom 17% | | | Module efficiency | 19.05% | 19.00% | Typical | 12,930 | | Power density | 190.5 | 190.0 | Typical | 12,909 | | Temperature coefficient | -0.380 | -0.360 | Weak - bottom 22% | 13,397 | | Weight (kg) | 18.0 kg | 19.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.05% | 19.00% | Typical | 12,930 | | Power density | 190.5 | 190.0 | Typical | 12,909 | | Temperature coefficient | -0.380 | -0.360 | Weak - bottom 22% | 13,397 | | Weight per kWp | 58.1 | 60.0 | Typical | 11,548 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **-0.380 %/°C temperature coefficient** - Bottom 22% of the PERC 300-350 W segment, against a median of -0.360. - **Best for:** Residential and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 310 W - **Efficiency:** 19.05 % - **Voltage at Pmax (Vmp):** 32.60 V - **Current at Pmax (Imp):** 9.51 A - **Open-circuit voltage (Voc):** 40.20 V - **Short-circuit current (Isc):** 9.82 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.380 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 46 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1640 mm - **Width:** 992 mm - **Thickness:** 35 mm - **Weight:** 18.0 kg - **Area:** 1.63 m2 - **Power density:** 190.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 257 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12930 of 14005 | | Power density | 12909 of 14005 | | Temperature coefficient | 13397 of 14005 | | Weight | 11548 of 14005 | | Warranty | 9798 of 14005 | ## About this series The SP Enerji Solar Power 300 W - 320 W series consists of monocrystalline modules with 60 cells, designed to maximize energy yield with limited roof or ground space. The use of **PERC** technology helps to better utilize diffuse radiation, resulting in more stable production on cloudy days - which is important in Polish conditions. Another advantage is the **positive power tolerance**, which makes the actual performance of the installation more predictable from the very first start-up. For investors, safety in complex systems is also important - this series supports **high system voltage**, which facilitates the design of long strings and reduces losses on the DC side. The construction with tempered glass and a solid frame provides the **mechanical resistance** needed for roofs of single-family homes, office buildings, and small PV farms. The entire range is also complemented by a **product warranty**, which increases the confidence in the investment and differentiates the series from many budget-friendly alternatives. ## Notable figures - Efficiency of 19.1% matches the \*\*PERC 0-400W\*\* median - Power density of 190.6 W/m² is 3.8 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - needs more roof space - Temperature coefficient of -0.38%/°C is 0.02pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C) - higher losses in summer heat - At 18.0 kg, this panel is 2.5 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg) - easier handling during installation - Ranked #12930 out of 14005 panels for efficiency in the database ## Questions ### Is the SP Enerji Solar Power 300–320 W series still available for purchase? The SP Enerji Solar Power 300–320 W series has been discontinued and is no longer actively distributed. If you need this specific series, check with PV distributors that may still have stock on hand. Otherwise, consider newer PERC mono-crystalline modules with similar specifications that come with a current manufacturer warranty and full after-sales support. ### What does PERC technology do in the SP Enerji Solar Power panels, and is it worth the premium? PERC technology adds a passivation layer on the rear side of each cell, reflecting unabsorbed light back into the silicon and reducing electron recombination losses. The result is higher energy yield — especially under diffuse irradiance. In Poland's climate, with a high share of overcast days, PERC modules generate measurably more kilowatt-hours annually compared to conventional mono-crystalline cells without rear passivation. ### What warranty comes with the SP Enerji Solar Power 320 W series? The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty guaranteeing that modules retain a specified percentage of their rated power over that period. This warranty scope is standard for mid-range modules and distinguishes the series from budget alternatives that typically offer little or no long-term power guarantee. ### What does positive power tolerance mean for the SP Enerji Solar Power 320 W, and why does it matter? Positive power tolerance means each module's actual output at STC meets or exceeds the nameplate rating. You avoid the risk of a 320 W panel shipping from the factory at, say, 312 W. This makes system yield projections more accurate and ensures your array's total installed capacity matches the sum of the modules' rated powers from the very first day of operation. ### Do SP Enerji Solar Power 300–320 W panels perform well on overcast days typical of the Polish climate? Yes. The PERC cells used in this series harvest diffuse and low-angle irradiance more efficiently than standard mono-crystalline cells. On overcast days the panels continue generating power, though at reduced output compared to full irradiance. This is a meaningful advantage in Poland's temperate climate, where a significant share of annual energy production comes from partially cloudy conditions rather than clear-sky days. ### Is the SP Enerji Solar Power 300–320 W series suitable for building long strings in a commercial installation? Yes. The series supports high system voltage, allowing more modules per string without exceeding the inverter's maximum DC input voltage. Longer strings reduce cabling requirements, lower DC-side resistive losses, and simplify cable routing. This is a practical advantage for commercial rooftop systems and small PV farms, where optimizing BoS costs has a direct impact on overall LCOE. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/sp-300m60-sp-305m60-sp-310m60-sp-315m60-sp-315m60-01-08-2019-5492a1af0a35.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +4.3 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +4.3 pp | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | Cooler, +4.3 pp, +5 yr warranty | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +4.1 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +4.1 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | Lighter, +3.9 pp, +5 yr warranty | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | -50 W, lighter, +3.9 pp | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | Lighter, +3.9 pp, +5 yr warranty | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | Lighter, +3.9 pp, +5 yr warranty | | [SP Enerji SP-260P60](https://comparepv.com/panel/sp-enerji-sp-260p60) | 260 W | -50 W, hotter, -3.1 pp | | [SP Enerji SP-265P60](https://comparepv.com/panel/sp-enerji-sp-265p60) | 265 W | -45 W, hotter, -2.8 pp | | [SP Enerji SP-270P60](https://comparepv.com/panel/sp-enerji-sp-270p60) | 270 W | -40 W, hotter, -2.4 pp | | [SP Enerji SP-275P60](https://comparepv.com/panel/sp-enerji-sp-275p60) | 275 W | -35 W, hotter, -2.2 pp | | [SP Enerji SP-280P60](https://comparepv.com/panel/sp-enerji-sp-280p60) | 280 W | -30 W, hotter, -1.8 pp | | [SP Enerji SP-285P60](https://comparepv.com/panel/sp-enerji-sp-285p60) | 285 W | -25 W, hotter, -1.5 pp | | [SP Enerji SP-300M60](https://comparepv.com/panel/sp-enerji-sp-300m60) | 300 W | -10 W, -0.6 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +3.6 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/sp-enerji-sp-310m60 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.