Swanson's law Swanson's law Swanson's law is the observation that the price of solar photovoltaic modules tends to drop 20 percent for every doubling of cumulative shipped volume. At present rates, costs halve about every 10 years. It is named after Richard Swanson, the founder of SunPower Corporation, a solar panel manufacturer. Swanson's law has been compared to Moore's law, which predicts the growing computing power of processors. Crystalline silicon photovoltaic cell prices have fallen from $76.67 per watt in 1977 to $0.36 per watt in 2014. Plotting the module price (in $/Wp) versus time shows a dropping by 10% per year.
Tak and Co Inc v AEL Corp Ltd Tak and Co Inc v AEL Corp Ltd Tak and Co Inc v AEL Corp Ltd (1995) 5 NZBLC 103,887 is an often cited in NZ case law regarding the parol evidence rule, which effectively reinforces English case of Henderson v Arthur [1907] 1 KB 10. This case is often also cited regarding the award for exemplary damages. Tak was in the business of importing pedigree cattle into Japan and contracted AEL to certify that these cattle were indeed pedigree cattle. At the start, both parties signed a pro forma invoice with terms and conditions. A pro forma invoice is