Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Don Y Newsgroups: sci.electronics.design Subject: Re: Grand Apagon - Electricity (not) in Spain Date: Wed, 30 Apr 2025 19:20:15 -0700 Organization: A noiseless patient Spider Lines: 19 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Thu, 01 May 2025 04:20:40 +0200 (CEST) Injection-Info: dont-email.me; posting-host="42c3367eb70f90fe22b5576cd2a74f93"; logging-data="1794290"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18PGyf+P4+Vjfyi6MDiXcU4" User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Cancel-Lock: sha1:UHMD3+Ans3UFJ6FOo3JgEV2X2UI= In-Reply-To: Content-Language: en-US Bytes: 2205 On 4/30/2025 5:36 PM, Chris Jones wrote: > There is nothing magic about the current from a rotating generator that cannot > be exactly replicated by an inverter that synthesises the same waveform and > produces it with power semiconductors instead of a steam engine. Especially Exactly. And "pull" in the required direction. The challenge would be the distributed nature of the system components. A large mechanical generator is a "big elephant" that can exert a lot of influence. Small individual (e.g., residential) would require more coordination (and reliability). > domestic single-phase inverters already incorporate enough capacitance to > buffer the PV energy supplied to them, so as to supply a sinusoidal current to > the grid, and this storage allows it to shift the phase of the current relative > to the voltage however required in order to help stabilise the system, if only > it were allowed to and required to by regulations.