DIY Solar Power System
May
The New Solar Homes Partnership Program (NSHP) is part of the $3.3 billion California solar Initiative. In the New
Solar Homes Partnership, a solar home is a highly energy efficient home that uses photovoltaic (or PV) modules to generate electricity from the sun. The program offers help financial incentives to make building new homes with solar easier and more cost effective than ever. Over the next 13 years this program will reward builders with $400 million in solar rebates.
HelioPower’s energy consultant, Tyler Michael, has developed a specialty working to help homeowners take advantage of this program. Working in the San Diego Gas & Electric (SDG&E) utility territory, Tyler was recently quoted in the utility’s NSHP Program Fact Sheet.
Tyler works with homeowners and builders to meet the criteria of NSHP. Tyler has also worked with many “fire survivors” in the San Diego area to help them navigate the program.
“This program requires extensive cooperation between the architect, the contractor, the homeowner, and Heliopower to qualify them for the rebate.. NSHP has a much higher rebate allowance per watt than the normal CSI program,” said Tyler.
It is very important to plan the solar power system at the beginning of home design so that all the requirements can be met for this program. Advance planning is critical to qualify without adding more cost in the future. Upfront planning results in an energy efficient home in the future, which saves money every month on energy bills. “If you wait and install the solar power as a retrofit, you lose up to $1.00/watt in rebate. For an average home that would be about $5000,” said Tyler.
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March
Freescale Semiconductor unveiled new technology for power conversion for photovoltaic devices at this year’s Applied Power Electronics Conference and Exposition (APEC) in mid-February. The breakthrough comes in the form of a tiny integrated circuit that boosts ultra-low voltage (produced by solar cells) up to levels high enough to start up small devices like cell phones.
Energy Boost for Solar Cells
The impact of this could be monumental for small electronic devices. The long-standing problem surrounding small solar applications has been this: it has been difficult to extract more than 0.3 volts from a single solar cell, not enough to start up and operate a typical cell phone. Therefore, solar cells must be arranged in strings, eventually forming panels for larger uses. Unfortunately, a string of solar cells only produces as much power as its weakest link, which means that if one cell is shaded, mismatched, or damaged, the entire string suffers. Freescale’s circuit technology — a tiny DC-to-DC converter — is able to boost the voltage from a single cell to usable levels without external assistance.
From Panels to Single Cells
The impacts of this on daily life could be huge. The ability to extract usable power from a single solar cell could mean solar powered phones that are smaller and cheaper. Freescale’s circuit could make that string of cells smaller or even unnecessary, reducing the effect of shading while increasing efficiency. (more…)
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