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Publiskā sektora investīcijas ir bieži pielietots instruments, lai stimulētu degradētu vai vāji attīstītu teritoriju attīstību, taču Latvijā ir maz pētīta šādu investīciju ietekme, kā arī ir salīdzinoši maz mēģinājumu novērtēt to radītos ekonomiskos ieguvumus. Plānotāji Latvijā bieži saskaras ar izaicinājumu, ka budžeta taupības apstākļos investīcijas attīstāmajās teritorijās finansējuma trūkuma dēļ netiek veiktas, līdz ar to teritoriju attīstība tiek kavēta. Maģistra darbā – Teritorijas attīstības plānu īstenošanas ietekmes novērtējuma pieeja: Rīgas pilsētas piemēri – tiek meklēta Latvijas situācijai piemērota pieeja īstenotas attīstības ieguvumu novērtēšanai, kas balstīta uz attīstības ietekmes novērtējuma paņēmienu un to praktiskā pielietojuma izpēti teorijā un labās prakses piemēros citur pasaulē. Izstrādātā ietekmes novērtējuma metodoloģiskā pieeja pielietojama kā atbalsta instruments pašvaldībām lēmumu pieņemšanai par ilgtspējīgām, ekonomiski pamatotām un sabiedrībai izdevīgām investīcijām pilsētvides attīstībā. Pētījuma rezultāti liecina, ka publiskajām investīcijām, kas ieguldītas teritoriju attīstībā, ir potenciāls atgriezties publiskā sektora budžetā kā ieņēmumiem, kas veidojušies kā tiešs notikušās teritorijas attīstības rezultāts., Despite the widespread use of public investments as a strategy to promote development of run-down and deprived urban areas, there is only limited evidence on the precise impact of these investments and surprisingly few attempts to value their benefits. Spatial planners in Latvia are often faced with the challenge of public budget austerity –investments in urban development are not carried out due to lack of financing, and thus the territory development is hindered. Master’s thesis – The Approach to Spatial Development Planning Impact Assessment: Riga City Cases – seeks for an approach to evaluation of benefits resulting from implemented development. Proposed methodological approach, built on the studies of different impact assessment methods and their use worldwide, both in theory and practice, is aimed to be applicable for municipalities in Latvia to serve as a decision-making tool for cost-effective investments in urban development. The results of the study prove that public financial resources invested in urban development have a potential to return to the public sector budget as the revenue, generated directly by accomplished urban development.

The city of Riga, being at the forefront of fighting climate change, is in the process of updating their energy planning document, the Riga Smart City Sustainable Energy Action Plan, for the planning period 2020–2030. As Riga surpassed the emission reduction target of the EU for 2030, there is an opportunity for a new ambitious goal and innovative actions to accomplishit. Considering the Intergovernmental Panel on Climate Change’s (IPCC) recommendation of not exceeding a world average temperature increase of 2° C, suitable targets for Riga are a reduction by 61% (2030) and 70% (2050), respectively, compared to 1990 levels. This paper presents pathways that contain measures that are complementary to the planned actions of Riga and focus on three thematic areas: green hydrogen, solar engagement, and modern transportation. The measures consist of successful European actions modified and applied to the characteristics of Riga. The production of green hydrogen is economically feasible for the city of Riga, achieving a Levelized Cost of Electricity (LCOE) of 0.0395 EUR/kWh and a Levelized Cost of Hydrogen (LCOH) of 3.62 EUR/kgH2. While rooftop solar PV systems are an attractive option for the citizens of Riga if a feed-in tariff of 0.1 EUR/kWh is granted, the employment of solar thermal collectors is not advisable due to the high breakeven duration. Including citizens in renewable projects in the form of voucher return packages is a welcomed alternative loan scheme benefiting both the municipality and the citizens. Furthermore, the development of a microalgae carbon capture pilot project could leverage Riga’s role as an innovation hub. The creation of a fossil-free last-mile delivery zone in the city centre would tackle the challenge of reducing road emissions as electric cargo bicycles have the potential of decreasing emissions by around 99% per trip Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.2 - Per a 2030, augmentar substancialment el percentatge d’energia renovable en el con­junt de fonts d’energia