ISIS uses a modular suite of 1.0 and 1.5 MW solar-inversion platforms and 15 and 38 kV utility interconnection platforms.

Utility-scale inverter ready in 1.0 and 1.5-MW modules

November 14, 2011 :

The Integrated Solar Inversion Station ( ISIS) is for utility grade solar projects of 1 MW and more. It uses a modular suite of 1.0 and 1.5 MW solar-inversion platforms and 15 and 38 kV utility interconnection platforms. The company says it works with solar-project developers, financers, engineering, procurement and construction (EPC) firms, and utilities to

carlos grid tied inverters

Transformerless grid-tied inverters

September 15, 2011 :

Illinois-based manufacturer of PV inverters Carlo Gavazzi offers a new line of grid-tied PV models. The company says the ISGA Series features a transformerless design, which does not incorporate a cooling fan. Naturally, cooling fans have moving components which ultimately will fail, therefore their exclusion in the design leads to a longer, maintenance-free product life

solarmax inverter

Solar inverter meets stringent specifications

August 19, 2011 :

Newly commissioned grid-coupled inverters equipped with a direct medium-voltage connection in Germany must demonstrate their compliance with the directive “Generator plants on the medium-voltage network” by means of a unit certificate of the BDEW (German Association of Energy and Water Industries). For example, the BDEW directive requests that photovoltaic inverters must no longer shut down

rooftop188x188

8-kW residential inverter with commercial performance

April 29, 2011 :

A solar inverter manufacturer has a new line for residential use. Danfoss Solar says its TripleLynx series performs as well as commercial grade inverters. The TripleLynx 8-kW Series features three phase output, with 1000V DC and 8000W power output for 97.8% maximum power. Allan The company also says the line offers up to 99.9% MPP

The PCS-2506 has a MPP of 300-500 VDC, and maximum power output of 250 kW. It also features forced convection cooling, is 97% efficient, and is designed to meet UL 1741 standards.

250-kW, grid-tied PV inverter to come out this summer

April 1, 2011 :

An Illinois-based manufacturer will release its first in a line of grid-tied PV inverters this summer. Basler Electric’s PCS-250 is manufactured in the USA and includes options for 5, 10, 15, or 20-year warranties. The inverter features: -High-efficiency transformers and inductor -Advanced communications protocols including ModBus and DNP3 for interoperability with utility systems -Integrated, utility-grade

Alpha-Core inductors are box shaped and fully encapsulated in black epoxy resin.

Significantly smaller power inductors

March 22, 2011 :

Electrical product manufacturer Alpha-Core ( a division of Bridgeport Magnetics Group Inc.) has a new line of high-power inductors for high-frequency applications, such as on-grid solar power systems. The inductors are at least 30% smaller and lighter, because of using high-performance gapped amorphous ribbon cores instead of conventional cores of silicon steel or powdered iron.

The MPPT has found MPP#1 and wants to determine whether it is the right point. It moves to MPP#2 and finds it results in lower power. It then returns to MPP#1 which is now MPP#3. To ensure the MPP point is truly correct it moves to MPP#4. It finds it is lower and decides to move back. If the irradiation level then changes the tracker hits MPP#5 and thinks this direction of tracking is perfect. It will keep moving this way thinking that it is on the right track. With increasing irradiation levels the MPPT moves to MPP#6 and#7 quickly, but is completely side tracked as can be seen. Although increasing the power output it is actually moving away from the true MPP.

A little more on MPPT

March 3, 2011 :

Here’s a little about Maximum Power Point Tracking  from solar inverter manufacturer Danfoss. To increase the output energy of a PV system, it is important to have an efficient Maximum Power Point Tracker (MPPT). The conversion efficiency of the inverter and the focus on reducing losses in cables have little effect if the inverter is not

Sunny Central CP inverters are also available with an industry-best 99% uptime guarantee and optional extended warranties up to 20 years.

Inverters are looking sunny

November 30, 2010 :

PV inverter manufacturer SMA America has released a new line of solar inverters, the Sunny Central Compact Power (CP) line. This outdoor-rated line includes the Sunny Central 500CP, 630CP, 720CP, 760CP and 800CP, which won the Intersolar Award 2010 in the photovoltaics category. These inverters join the Sunny Central High Efficiency (HE) line in SMA’s

SMA inverters have been used in Europe, but are now making their way to the North American market.

Transformerless inverters and more

November 10, 2010 :

Here’s an inverter that’s designed just for the utility PV power market. SMA Solar’s Sunny Central 800CP central inverter includes grid-management functions that have already been field-proven in Europe. The manufacturer says it’s one of the first outdoor-rated, single devices with a nominal capacity of 800 kVA. Its peak continuous power is 880 kVA at

Typical IPA from Eaton.

A little from a company that does a lot

November 5, 2010 :

As a manufacturer of electrical equipment including inverters, combiner boxes, disconnect switches, and meter beakers, Eaton Corp. showed what they had to offer the solar industry at the SPI show earlier in October. The company provides turnkey services to design, build, and support solar power systems, as well as arc flash hazard analysis, power reliability